1847 lines
68 KiB
Rust
1847 lines
68 KiB
Rust
use serde::{Deserialize, Serialize};
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use serde_json::Value;
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use std::collections::HashSet;
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use std::io::Write;
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use tokio::sync::RwLock;
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use crate::models::connection::DatabaseType;
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use crate::sql_dialect::{qualified_table_name, quote_table_identifier, uses_single_row_insert_statements};
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use crate::transfer::{
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format_ch_array_sql_literal, format_pg_array_sql_literal, is_identity_column_extra, quote_identifier,
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selected_columns_include_identity_extras, wrap_dameng_identity_insert_sql,
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wrap_dameng_identity_insert_sql_for_table,
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};
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static EXPORT_CANCELLED: std::sync::LazyLock<RwLock<HashSet<String>>> =
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std::sync::LazyLock::new(|| RwLock::new(HashSet::new()));
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#[derive(Debug, Clone, Serialize, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct DatabaseExportRequest {
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pub export_id: String,
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pub connection_id: String,
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pub database: String,
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pub schema: String,
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pub file_path: String,
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#[serde(default)]
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pub selected_tables: Vec<String>,
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pub include_structure: bool,
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pub include_data: bool,
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pub include_objects: bool,
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#[serde(default)]
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pub drop_table_if_exists: bool,
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pub batch_size: usize,
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}
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#[derive(Debug, Clone, Serialize, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct ExportProgress {
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pub export_id: String,
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pub current_object: String,
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pub object_index: usize,
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pub total_objects: usize,
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pub rows_exported: u64,
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pub total_rows: Option<u64>,
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pub status: ExportStatus,
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pub error: Option<String>,
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}
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub enum ExportStatus {
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Running,
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Writing,
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Done,
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Error,
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Cancelled,
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}
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pub const DATABASE_EXPORT_ROW_LIMIT: usize = 10_000;
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pub const DATABASE_EXPORT_PAGE_SIZE: usize = 500;
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pub const DATABASE_EXPORT_INSERT_BATCH_SIZE: usize = 100;
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#[derive(Debug, Clone, PartialEq, Eq)]
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struct PostgresExportSequence {
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name: String,
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data_type: String,
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start_value: String,
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min_value: String,
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max_value: String,
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increment: String,
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cycle: bool,
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cache_value: String,
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last_value: Option<String>,
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owner_table: Option<String>,
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owner_column: Option<String>,
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}
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#[derive(Debug, Clone, Serialize, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct ExportedTableSql {
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pub display_name: String,
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub database_type: Option<DatabaseType>,
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub schema: Option<String>,
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub table_name: Option<String>,
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub qualified_table_name: Option<String>,
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub ddl: Option<String>,
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#[serde(default)]
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pub columns: Vec<String>,
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#[serde(default)]
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pub column_types: Vec<Option<String>>,
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#[serde(default)]
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pub column_extras: Vec<Option<String>>,
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#[serde(default)]
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pub rows: Vec<Vec<Value>>,
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#[serde(default)]
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pub truncated: bool,
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}
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#[derive(Debug, Clone, Serialize, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct BuildExportInsertStatementsOptions {
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub database_type: Option<DatabaseType>,
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub schema: Option<String>,
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub table_name: Option<String>,
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub qualified_table_name: Option<String>,
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#[serde(default)]
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pub columns: Vec<String>,
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#[serde(default)]
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pub column_types: Vec<Option<String>>,
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#[serde(default)]
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pub column_extras: Vec<Option<String>>,
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#[serde(default)]
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pub rows: Vec<Vec<Value>>,
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub batch_size: Option<usize>,
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}
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#[derive(Debug, Clone, Serialize, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct BuildExportSqlInsertOptions {
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#[serde(flatten)]
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pub insert: BuildExportInsertStatementsOptions,
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}
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#[derive(Debug, Clone, Serialize, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct BuildDatabaseSqlExportOptions {
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pub database_name: String,
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub exported_at: Option<String>,
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#[serde(default)]
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pub tables: Vec<ExportedTableSql>,
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub row_limit_per_table: Option<usize>,
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub insert_batch_size: Option<usize>,
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/// Optional connection info for FK-aware table ordering.
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/// When set, the caller should sort tables by dependency before passing them
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/// to `build_database_sql_export`.
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub connection_id: Option<String>,
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub database: Option<String>,
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub schema: Option<String>,
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}
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pub fn format_export_sql_literal(value: &Value) -> String {
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format_export_sql_literal_for_database(value, None)
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}
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fn format_export_sql_literal_for_database(value: &Value, database_type: Option<DatabaseType>) -> String {
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if value.is_null() {
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return "NULL".to_string();
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}
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if let Some(number) = value.as_number() {
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return number.to_string();
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}
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if let Some(value) = value.as_bool() {
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return if value { "TRUE" } else { "FALSE" }.to_string();
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}
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if let Some(arr) = value.as_array() {
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return format_pg_array_sql_literal(arr);
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}
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let text = value.as_str().map_or_else(|| value.to_string(), ToString::to_string);
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quote_export_sql_string_for_database(&text, database_type)
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}
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fn format_export_sql_literal_typed(
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value: &Value,
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database_type: Option<DatabaseType>,
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column_type: Option<&str>,
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) -> String {
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if is_postgres_json_export_column(database_type, column_type) {
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return format_postgres_json_export_literal(value);
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}
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if matches!(database_type, Some(DatabaseType::Mysql)) && column_type.is_some_and(is_mysql_bit_type) {
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return format_mysql_bit_literal(value);
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}
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if is_mysql_compatible_export_literal_target(database_type) {
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if column_type.is_some_and(is_mysql_binary_export_type) {
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if let Some(literal) = format_mysql_binary_export_literal(value) {
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return literal;
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}
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}
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if column_type.is_some_and(is_export_numeric_type) {
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if let Some(literal) = format_export_numeric_literal(value) {
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return literal;
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}
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}
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}
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if let Some(arr) = value.as_array() {
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if matches!(database_type, Some(DatabaseType::ClickHouse) | Some(DatabaseType::Databend)) {
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return format_ch_array_sql_literal(arr);
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}
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}
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if let Some(literal) = format_export_temporal_literal(value, database_type, column_type) {
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return literal;
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}
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format_export_sql_literal_for_database(value, database_type)
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}
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fn format_postgres_json_export_literal(value: &Value) -> String {
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if value.is_null() {
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return "NULL".to_string();
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}
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let text = value.as_str().map_or_else(|| value.to_string(), ToString::to_string);
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// PostgreSQL standard strings keep backslashes literal; JSON text needs its
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// own escape sequences, so only SQL-escape the surrounding string delimiter.
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postgres_string_literal(&text)
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}
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fn quote_export_sql_string(text: &str) -> String {
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format!("'{}'", text.replace('\\', "\\\\").replace('\'', "''"))
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}
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fn quote_export_sql_string_for_database(text: &str, database_type: Option<DatabaseType>) -> String {
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if is_mysql_compatible_export_literal_target(database_type) {
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quote_mysql_compatible_export_sql_string(text)
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} else {
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quote_export_sql_string(text)
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}
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}
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fn quote_mysql_compatible_export_sql_string(text: &str) -> String {
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format!("'{}'", escape_mysql_compatible_export_sql_string(text))
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}
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fn escape_mysql_compatible_export_sql_string(text: &str) -> String {
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let mut escaped = String::with_capacity(text.len());
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for ch in text.chars() {
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match ch {
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// MySQL-family dumps should keep control characters out of the
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// physical script layout while relying on the dialect's escapes.
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'\0' => escaped.push_str("\\0"),
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'\x08' => escaped.push_str("\\b"),
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'\n' => escaped.push_str("\\n"),
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'\r' => escaped.push_str("\\r"),
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'\t' => escaped.push_str("\\t"),
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'\x0c' => escaped.push_str("\\f"),
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'\x1a' => escaped.push_str("\\Z"),
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'\\' => escaped.push_str("\\\\"),
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'\'' => escaped.push_str("''"),
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_ => escaped.push(ch),
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}
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}
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escaped
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}
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fn is_mysql_compatible_export_literal_target(database_type: Option<DatabaseType>) -> bool {
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matches!(
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database_type,
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Some(DatabaseType::Mysql | DatabaseType::Doris | DatabaseType::StarRocks | DatabaseType::Goldendb)
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)
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}
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fn format_export_temporal_literal(
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value: &Value,
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database_type: Option<DatabaseType>,
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column_type: Option<&str>,
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) -> Option<String> {
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let text = value.as_str()?;
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let column_type = column_type?;
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if database_type == Some(DatabaseType::SqlServer) {
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return crate::sqlserver_temporal::normalize_sqlserver_temporal_literal(text, Some(column_type))
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.map(|text| quote_export_sql_string(&text));
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}
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let kind = export_temporal_column_kind(database_type, column_type)?;
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format_rfc3339_export_temporal_text(text, kind, database_type).map(|text| quote_export_sql_string(&text))
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}
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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enum ExportTemporalKind {
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Date,
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Time,
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DateTime,
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DateTimeWithTimeZone,
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}
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fn export_temporal_column_kind(database_type: Option<DatabaseType>, column_type: &str) -> Option<ExportTemporalKind> {
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let lower = column_type.trim().trim_matches('"').to_ascii_lowercase();
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let base = lower.split(['(', ' ', '\t', '\n']).next().unwrap_or("");
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match base {
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"date" if matches!(database_type, Some(DatabaseType::Oracle | DatabaseType::OceanbaseOracle)) => {
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Some(ExportTemporalKind::DateTime)
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}
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"date" => Some(ExportTemporalKind::Date),
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"time" => Some(ExportTemporalKind::Time),
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"datetime" | "datetime2" | "smalldatetime" | "datetime64" => Some(ExportTemporalKind::DateTime),
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"datetimeoffset" | "timestamptz" => Some(ExportTemporalKind::DateTimeWithTimeZone),
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_ if lower.starts_with("timestamp")
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&& (lower.contains("with time zone") || lower.contains("with local time zone")) =>
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{
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Some(ExportTemporalKind::DateTimeWithTimeZone)
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}
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_ if lower.starts_with("timestamp") => Some(ExportTemporalKind::DateTime),
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_ => None,
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}
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}
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fn format_rfc3339_export_temporal_text(
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text: &str,
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kind: ExportTemporalKind,
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database_type: Option<DatabaseType>,
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) -> Option<String> {
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let parts = parse_export_rfc3339_parts(text)?;
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let fraction = normalize_export_fraction(parts.fraction.as_deref(), database_type);
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match kind {
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ExportTemporalKind::Date => Some(parts.date),
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ExportTemporalKind::Time => Some(format!("{}{fraction}", parts.time)),
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ExportTemporalKind::DateTime => Some(format!("{} {}{fraction}", parts.date, parts.time)),
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ExportTemporalKind::DateTimeWithTimeZone => {
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Some(format!("{} {}{fraction}{}", parts.date, parts.time, normalize_export_timezone(&parts.zone)))
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}
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}
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}
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struct ExportRfc3339Parts {
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date: String,
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time: String,
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fraction: Option<String>,
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zone: String,
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}
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fn parse_export_rfc3339_parts(text: &str) -> Option<ExportRfc3339Parts> {
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let bytes = text.as_bytes();
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if bytes.len() < 20 || bytes.get(4) != Some(&b'-') || bytes.get(7) != Some(&b'-') {
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return None;
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}
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let separator = *bytes.get(10)?;
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if separator != b'T' && separator != b' ' {
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return None;
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}
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if bytes.get(13) != Some(&b':') || bytes.get(16) != Some(&b':') {
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return None;
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}
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let date = &text[0..10];
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let time = &text[11..19];
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let rest = &text[19..];
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let (fraction, zone) = if let Some(rest) = rest.strip_prefix('.') {
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let digit_count = rest.chars().take_while(|ch| ch.is_ascii_digit()).count();
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if digit_count == 0 || digit_count > 9 {
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return None;
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}
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(Some(format!(".{}", &rest[..digit_count])), &rest[digit_count..])
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} else {
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(None, rest)
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};
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if zone.eq_ignore_ascii_case("z") || is_export_timezone_offset(zone) {
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Some(ExportRfc3339Parts { date: date.to_string(), time: time.to_string(), fraction, zone: zone.to_string() })
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} else {
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None
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}
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}
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fn normalize_export_fraction(fraction: Option<&str>, database_type: Option<DatabaseType>) -> String {
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match fraction {
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Some(fraction) if database_type == Some(DatabaseType::Mysql) && fraction.len() > 7 => fraction[..7].to_string(),
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Some(fraction) => fraction.to_string(),
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None => String::new(),
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}
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}
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|
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fn normalize_export_timezone(zone: &str) -> String {
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if zone.eq_ignore_ascii_case("z") {
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"+00:00".to_string()
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} else {
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zone.to_string()
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}
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}
|
|
|
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fn is_export_timezone_offset(value: &str) -> bool {
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let bytes = value.as_bytes();
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bytes.len() == 6
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&& matches!(bytes[0], b'+' | b'-')
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&& bytes[3] == b':'
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&& bytes[1].is_ascii_digit()
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&& bytes[2].is_ascii_digit()
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&& bytes[4].is_ascii_digit()
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&& bytes[5].is_ascii_digit()
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}
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|
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|
fn is_mysql_bit_type(column_type: &str) -> bool {
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|
let trimmed = column_type.trim();
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let lower = trimmed.to_ascii_lowercase();
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lower == "bit" || lower.starts_with("bit(") || lower.starts_with("bit ")
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}
|
|
|
|
fn format_mysql_bit_literal(value: &Value) -> String {
|
|
match value {
|
|
Value::Null => "NULL".to_string(),
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|
Value::Bool(value) => {
|
|
if *value {
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|
"b'1'".to_string()
|
|
} else {
|
|
"b'0'".to_string()
|
|
}
|
|
}
|
|
Value::Number(value) => {
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|
let s = value.to_string();
|
|
if s == "0" || s == "1" {
|
|
format!("b'{s}'")
|
|
} else {
|
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s
|
|
}
|
|
}
|
|
Value::String(value) => {
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|
let trimmed = value.trim();
|
|
if trimmed.eq_ignore_ascii_case("true") {
|
|
return "b'1'".to_string();
|
|
}
|
|
if trimmed.eq_ignore_ascii_case("false") {
|
|
return "b'0'".to_string();
|
|
}
|
|
if trimmed == "0" || trimmed == "1" {
|
|
return format!("b'{trimmed}'");
|
|
}
|
|
if !trimmed.is_empty() && trimmed.bytes().all(|byte| byte == b'0' || byte == b'1') {
|
|
return format!("b'{trimmed}'");
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|
}
|
|
format!("b'{}'", escape_mysql_compatible_export_sql_string(value))
|
|
}
|
|
other => format_export_sql_literal(other),
|
|
}
|
|
}
|
|
|
|
fn is_mysql_binary_export_type(column_type: &str) -> bool {
|
|
let lower = column_type.trim().to_ascii_lowercase();
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let base = lower.split(['(', ':', ' ', '\t', '\n']).next().unwrap_or("").trim();
|
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matches!(base, "binary" | "varbinary" | "blob" | "tinyblob" | "mediumblob" | "longblob")
|
|
}
|
|
|
|
fn format_mysql_binary_export_literal(value: &Value) -> Option<String> {
|
|
match value {
|
|
Value::Null => Some("NULL".to_string()),
|
|
Value::String(text) => format_mysql_binary_export_literal_text(text),
|
|
_ => None,
|
|
}
|
|
}
|
|
|
|
fn format_mysql_binary_export_literal_text(text: &str) -> Option<String> {
|
|
let trimmed = text.trim();
|
|
let hex = trimmed.strip_prefix("0x").or_else(|| trimmed.strip_prefix("0X"))?;
|
|
if hex.chars().all(|ch| ch.is_ascii_hexdigit()) {
|
|
// DBX exposes MySQL binary cells as 0x-prefixed hex text. Keep it as a
|
|
// MySQL hex literal so exported INSERT statements round-trip bytes.
|
|
Some(if hex.is_empty() { "X''".to_string() } else { format!("0x{hex}") })
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
|
|
fn is_export_numeric_type(column_type: &str) -> bool {
|
|
let lower = column_type.to_ascii_lowercase();
|
|
[
|
|
"int",
|
|
"integer",
|
|
"bigint",
|
|
"smallint",
|
|
"tinyint",
|
|
"mediumint",
|
|
"serial",
|
|
"number",
|
|
"numeric",
|
|
"decimal",
|
|
"dec",
|
|
"fixed",
|
|
"float",
|
|
"double",
|
|
"real",
|
|
]
|
|
.iter()
|
|
.any(|part| lower.split(|ch: char| !ch.is_ascii_alphanumeric()).any(|token| token == *part))
|
|
}
|
|
|
|
fn format_export_numeric_literal(value: &Value) -> Option<String> {
|
|
match value {
|
|
Value::Number(number) => Some(number.to_string()),
|
|
Value::String(text) if is_export_numeric_literal(text) => Some(text.to_string()),
|
|
_ => None,
|
|
}
|
|
}
|
|
|
|
fn is_export_numeric_literal(text: &str) -> bool {
|
|
if text.trim() != text || text.is_empty() {
|
|
return false;
|
|
}
|
|
text.parse::<f64>().is_ok_and(f64::is_finite)
|
|
&& text.chars().all(|ch| ch.is_ascii_digit() || matches!(ch, '+' | '-' | '.' | 'e' | 'E'))
|
|
&& text.chars().any(|ch| ch.is_ascii_digit())
|
|
}
|
|
|
|
pub fn build_export_insert_statements(options: BuildExportInsertStatementsOptions) -> Result<Vec<String>, String> {
|
|
if options.columns.is_empty() || options.rows.is_empty() {
|
|
return Ok(Vec::new());
|
|
}
|
|
|
|
let table = export_qualified_table_name(
|
|
options.database_type,
|
|
options.schema.as_deref(),
|
|
options.table_name.as_deref(),
|
|
options.qualified_table_name.as_deref(),
|
|
)?;
|
|
let insert_columns = options
|
|
.columns
|
|
.iter()
|
|
.enumerate()
|
|
.filter(|(index, _)| {
|
|
!is_postgres_tsvector_export_column(
|
|
options.database_type,
|
|
options.column_types.get(*index).and_then(|value| value.as_deref()),
|
|
)
|
|
})
|
|
.collect::<Vec<_>>();
|
|
if insert_columns.is_empty() {
|
|
return Ok(Vec::new());
|
|
}
|
|
let batch_size = if options.database_type.is_some_and(uses_single_row_insert_statements) {
|
|
1
|
|
} else {
|
|
options.batch_size.unwrap_or(DATABASE_EXPORT_INSERT_BATCH_SIZE).max(1)
|
|
};
|
|
let columns = insert_columns
|
|
.iter()
|
|
.map(|(_, column)| quote_table_identifier(options.database_type, column))
|
|
.collect::<Vec<_>>()
|
|
.join(", ");
|
|
let mut statements = Vec::new();
|
|
let needs_dameng_identity_insert = options.database_type == Some(DatabaseType::Dameng)
|
|
&& insert_columns.iter().any(|(index, _)| {
|
|
is_identity_column_extra(options.column_extras.get(*index).and_then(|value| value.as_deref()))
|
|
});
|
|
|
|
for rows in options.rows.chunks(batch_size) {
|
|
let values = rows
|
|
.iter()
|
|
.map(|row| {
|
|
let values = insert_columns
|
|
.iter()
|
|
.map(|(index, _)| {
|
|
let value = row.get(*index).unwrap_or(&Value::Null);
|
|
format_export_sql_literal_typed(
|
|
value,
|
|
options.database_type,
|
|
options.column_types.get(*index).and_then(|value| value.as_deref()),
|
|
)
|
|
})
|
|
.collect::<Vec<_>>()
|
|
.join(", ");
|
|
format!("({values})")
|
|
})
|
|
.collect::<Vec<_>>()
|
|
.join(", ");
|
|
let insert_sql = format!("INSERT INTO {table} ({columns}) VALUES {values};");
|
|
if needs_dameng_identity_insert {
|
|
statements.push(wrap_dameng_identity_insert_sql_for_table(&insert_sql, &table));
|
|
} else {
|
|
statements.push(insert_sql);
|
|
}
|
|
}
|
|
|
|
Ok(statements)
|
|
}
|
|
|
|
fn is_postgres_tsvector_export_column(database_type: Option<DatabaseType>, column_type: Option<&str>) -> bool {
|
|
database_type == Some(DatabaseType::Postgres)
|
|
&& column_type
|
|
.map(|column_type| {
|
|
let normalized = column_type.trim().trim_matches('"').to_ascii_lowercase();
|
|
normalized == "tsvector" || normalized.ends_with(".tsvector")
|
|
})
|
|
.unwrap_or(false)
|
|
}
|
|
|
|
fn is_postgres_json_export_column(database_type: Option<DatabaseType>, column_type: Option<&str>) -> bool {
|
|
database_type == Some(DatabaseType::Postgres)
|
|
&& column_type
|
|
.map(|column_type| {
|
|
let normalized = column_type.trim().trim_matches('"').to_ascii_lowercase();
|
|
matches!(normalized.as_str(), "json" | "jsonb")
|
|
|| normalized.ends_with(".json")
|
|
|| normalized.ends_with(".jsonb")
|
|
})
|
|
.unwrap_or(false)
|
|
}
|
|
|
|
pub fn build_export_sql_insert(options: BuildExportSqlInsertOptions) -> Result<String, String> {
|
|
build_export_insert_statements(options.insert).map(|statements| statements.join("\n"))
|
|
}
|
|
|
|
pub fn build_database_sql_export(options: BuildDatabaseSqlExportOptions) -> Result<String, String> {
|
|
let exported_at = options.exported_at.unwrap_or_else(|| chrono::Utc::now().to_rfc3339());
|
|
let row_limit = options.row_limit_per_table.unwrap_or(DATABASE_EXPORT_ROW_LIMIT);
|
|
let insert_batch_size = options.insert_batch_size.unwrap_or(DATABASE_EXPORT_INSERT_BATCH_SIZE);
|
|
let mut lines = vec![
|
|
"-- DBX database export".to_string(),
|
|
format!("-- Database: {}", options.database_name),
|
|
format!("-- Exported at: {exported_at}"),
|
|
format!("-- Row limit per table: {row_limit}"),
|
|
String::new(),
|
|
];
|
|
|
|
for table in options.tables {
|
|
if let Some(ddl) = table.ddl.as_ref().map(|ddl| ddl.trim()).filter(|ddl| !ddl.is_empty()) {
|
|
let ddl = normalize_export_table_ddl(ddl, table.database_type);
|
|
lines.push(format!("-- Structure for {}", table.display_name));
|
|
lines.push(format!("{};", ddl.trim_end_matches(';')));
|
|
lines.push(String::new());
|
|
}
|
|
|
|
lines.push(format!("-- Data for {}", table.display_name));
|
|
if table.truncated {
|
|
lines.push(format!("-- Exported rows: {} (truncated at {row_limit})", table.rows.len()));
|
|
} else {
|
|
lines.push(format!("-- Exported rows: {}", table.rows.len()));
|
|
}
|
|
|
|
let inserts = build_export_insert_statements(BuildExportInsertStatementsOptions {
|
|
database_type: table.database_type,
|
|
schema: table.schema,
|
|
table_name: table.table_name,
|
|
qualified_table_name: table.qualified_table_name,
|
|
columns: table.columns,
|
|
column_types: table.column_types,
|
|
column_extras: table.column_extras,
|
|
rows: table.rows,
|
|
batch_size: Some(insert_batch_size),
|
|
})?;
|
|
if inserts.is_empty() {
|
|
lines.push("-- No rows".to_string());
|
|
} else {
|
|
lines.extend(inserts);
|
|
}
|
|
lines.push(String::new());
|
|
}
|
|
|
|
Ok(lines.join("\n"))
|
|
}
|
|
|
|
fn export_qualified_table_name(
|
|
database_type: Option<DatabaseType>,
|
|
schema: Option<&str>,
|
|
table_name: Option<&str>,
|
|
qualified_name: Option<&str>,
|
|
) -> Result<String, String> {
|
|
if let Some(name) = qualified_name.filter(|name| !name.trim().is_empty()) {
|
|
return Ok(name.to_string());
|
|
}
|
|
let table_name = table_name
|
|
.filter(|name| !name.trim().is_empty())
|
|
.ok_or_else(|| "tableName is required when qualifiedTableName is not provided".to_string())?;
|
|
Ok(qualified_table_name(database_type, schema, table_name))
|
|
}
|
|
|
|
fn normalize_export_table_ddl(ddl: &str, database_type: Option<DatabaseType>) -> String {
|
|
if database_type != Some(DatabaseType::Mysql) {
|
|
return ddl.to_string();
|
|
}
|
|
|
|
static LEGACY_MYSQL_ROW_FORMAT_RE: std::sync::LazyLock<regex::Regex> =
|
|
std::sync::LazyLock::new(|| regex::Regex::new(r"(?i)\bROW_FORMAT\s*=\s*(COMPACT|REDUNDANT)\b").unwrap());
|
|
|
|
LEGACY_MYSQL_ROW_FORMAT_RE.replace_all(ddl, "ROW_FORMAT=DYNAMIC").into_owned()
|
|
}
|
|
|
|
fn postgres_sequence_qualified_name(schema: &str, sequence_name: &str) -> String {
|
|
let db_type = DatabaseType::Postgres;
|
|
if schema.trim().is_empty() {
|
|
quote_identifier(sequence_name, &db_type)
|
|
} else {
|
|
format!("{}.{}", quote_identifier(schema, &db_type), quote_identifier(sequence_name, &db_type))
|
|
}
|
|
}
|
|
|
|
fn postgres_string_literal(value: &str) -> String {
|
|
format!("'{}'", value.replace('\'', "''"))
|
|
}
|
|
|
|
fn generate_postgres_sequence_create_ddl(sequence: &PostgresExportSequence, schema: &str) -> String {
|
|
let qualified_name = postgres_sequence_qualified_name(schema, &sequence.name);
|
|
let cycle = if sequence.cycle { "CYCLE" } else { "NO CYCLE" };
|
|
format!(
|
|
"CREATE SEQUENCE IF NOT EXISTS {qualified_name}\n AS {data_type}\n START WITH {start_value}\n INCREMENT BY {increment}\n MINVALUE {min_value}\n MAXVALUE {max_value}\n CACHE {cache_value}\n {cycle}",
|
|
data_type = sequence.data_type,
|
|
start_value = sequence.start_value,
|
|
increment = sequence.increment,
|
|
min_value = sequence.min_value,
|
|
max_value = sequence.max_value,
|
|
cache_value = sequence.cache_value,
|
|
)
|
|
}
|
|
|
|
fn generate_postgres_sequence_owner_ddl(sequence: &PostgresExportSequence, schema: &str) -> Option<String> {
|
|
let owner_table = sequence.owner_table.as_deref()?;
|
|
let owner_column = sequence.owner_column.as_deref()?;
|
|
Some(format!(
|
|
"ALTER SEQUENCE {} OWNED BY {}.{}",
|
|
postgres_sequence_qualified_name(schema, &sequence.name),
|
|
crate::transfer::qualified_table(owner_table, schema, &DatabaseType::Postgres),
|
|
quote_identifier(owner_column, &DatabaseType::Postgres)
|
|
))
|
|
}
|
|
|
|
fn generate_postgres_sequence_setval_sql(sequence: &PostgresExportSequence, schema: &str) -> Option<String> {
|
|
let last_value = sequence.last_value.as_deref()?.trim();
|
|
if last_value.is_empty() {
|
|
return None;
|
|
}
|
|
|
|
let sequence_literal = postgres_string_literal(&postgres_sequence_qualified_name(schema, &sequence.name));
|
|
match (sequence.owner_table.as_deref(), sequence.owner_column.as_deref()) {
|
|
(Some(owner_table), Some(owner_column)) => {
|
|
let owner_table = crate::transfer::qualified_table(owner_table, schema, &DatabaseType::Postgres);
|
|
let owner_column = quote_identifier(owner_column, &DatabaseType::Postgres);
|
|
Some(format!(
|
|
"SELECT setval({sequence_literal}, GREATEST(COALESCE(MAX({owner_column}), {last_value}), {last_value}), true) FROM {owner_table}"
|
|
))
|
|
}
|
|
_ => Some(format!("SELECT setval({sequence_literal}, {last_value}, true)")),
|
|
}
|
|
}
|
|
|
|
async fn list_postgres_export_sequences(
|
|
state: &crate::connection::AppState,
|
|
pool_key: &str,
|
|
schema: &str,
|
|
selected_tables: &[String],
|
|
include_objects: bool,
|
|
) -> Result<Vec<PostgresExportSequence>, String> {
|
|
let pool = {
|
|
let connections = state.connections.read().await;
|
|
match connections.get(pool_key) {
|
|
Some(crate::connection::PoolKind::Postgres(pool)) => pool.clone(),
|
|
_ => return Ok(Vec::new()),
|
|
}
|
|
};
|
|
let client = pool.get().await.map_err(|e| e.to_string())?;
|
|
let rows = client
|
|
.query(
|
|
"SELECT c.relname, \
|
|
COALESCE(format_type(s.seqtypid, NULL), 'bigint'), \
|
|
COALESCE(s.seqstart::text, '1'), \
|
|
COALESCE(s.seqmin::text, '1'), \
|
|
COALESCE(s.seqmax::text, '9223372036854775807'), \
|
|
COALESCE(s.seqincrement::text, '1'), \
|
|
COALESCE(s.seqcycle, false), \
|
|
COALESCE(s.seqcache::text, '1'), \
|
|
t.relname, \
|
|
a.attname \
|
|
FROM pg_class c \
|
|
JOIN pg_namespace n ON n.oid = c.relnamespace \
|
|
LEFT JOIN pg_sequence s ON s.seqrelid = c.oid \
|
|
LEFT JOIN pg_depend d ON d.classid = 'pg_class'::regclass \
|
|
AND d.objid = c.oid \
|
|
AND d.refclassid = 'pg_class'::regclass \
|
|
AND d.deptype IN ('a', 'i') \
|
|
LEFT JOIN pg_class t ON t.oid = d.refobjid \
|
|
LEFT JOIN pg_namespace tn ON tn.oid = t.relnamespace AND tn.nspname = n.nspname \
|
|
LEFT JOIN pg_attribute a ON a.attrelid = t.oid AND a.attnum = d.refobjsubid \
|
|
WHERE c.relkind = 'S' AND n.nspname = $1 \
|
|
ORDER BY c.relname",
|
|
&[&schema],
|
|
)
|
|
.await
|
|
.map_err(|e| e.to_string())?;
|
|
|
|
let selected: HashSet<&str> = selected_tables.iter().map(String::as_str).collect();
|
|
let mut sequences = rows
|
|
.iter()
|
|
.map(|row| PostgresExportSequence {
|
|
name: row.get::<_, String>(0),
|
|
data_type: row.get::<_, String>(1),
|
|
start_value: row.get::<_, String>(2),
|
|
min_value: row.get::<_, String>(3),
|
|
max_value: row.get::<_, String>(4),
|
|
increment: row.get::<_, String>(5),
|
|
cycle: row.get::<_, bool>(6),
|
|
cache_value: row.get::<_, String>(7),
|
|
last_value: None,
|
|
owner_table: row.get::<_, Option<String>>(8),
|
|
owner_column: row.get::<_, Option<String>>(9),
|
|
})
|
|
.filter(|sequence| {
|
|
selected.is_empty()
|
|
|| sequence.owner_table.as_deref().map(|owner_table| selected.contains(owner_table)).unwrap_or(false)
|
|
})
|
|
.filter(|sequence| sequence.owner_table.is_some() || (include_objects && selected.is_empty()))
|
|
.collect::<Vec<_>>();
|
|
|
|
if sequences.is_empty() {
|
|
return Ok(sequences);
|
|
}
|
|
|
|
if let Ok(rows) = client
|
|
.query(
|
|
"SELECT c.relname, pg_sequence_last_value(c.oid)::text \
|
|
FROM pg_class c \
|
|
JOIN pg_namespace n ON n.oid = c.relnamespace \
|
|
WHERE c.relkind = 'S' AND n.nspname = $1",
|
|
&[&schema],
|
|
)
|
|
.await
|
|
{
|
|
for row in rows {
|
|
let name: String = row.get(0);
|
|
let last_value: Option<String> = row.get(1);
|
|
if let Some(sequence) = sequences.iter_mut().find(|sequence| sequence.name == name) {
|
|
sequence.last_value = last_value;
|
|
}
|
|
}
|
|
}
|
|
|
|
Ok(sequences)
|
|
}
|
|
|
|
pub async fn is_export_cancelled(export_id: &str) -> bool {
|
|
EXPORT_CANCELLED.read().await.contains(export_id)
|
|
}
|
|
|
|
pub async fn set_export_cancelled(export_id: &str) {
|
|
EXPORT_CANCELLED.write().await.insert(export_id.to_string());
|
|
}
|
|
|
|
pub async fn clear_export_cancelled(export_id: &str) {
|
|
EXPORT_CANCELLED.write().await.remove(export_id);
|
|
}
|
|
|
|
pub async fn export_database_sql_core(
|
|
state: &crate::connection::AppState,
|
|
request: &DatabaseExportRequest,
|
|
on_progress: impl Fn(ExportProgress),
|
|
) -> Result<(), String> {
|
|
// 1. Get database type
|
|
let db_type = state
|
|
.configs
|
|
.read()
|
|
.await
|
|
.get(&request.connection_id)
|
|
.map(|c| c.db_type)
|
|
.ok_or_else(|| format!("Connection config not found: {}", request.connection_id))?;
|
|
|
|
// 2. Get pool
|
|
let pool_key = state.get_or_create_pool(&request.connection_id, Some(&request.database)).await?;
|
|
|
|
// 3. List tables
|
|
let all_tables = crate::schema::list_tables_core(
|
|
state,
|
|
&request.connection_id,
|
|
&request.database,
|
|
&request.schema,
|
|
None,
|
|
None,
|
|
None,
|
|
None,
|
|
)
|
|
.await?;
|
|
let all_tables = filter_selected_table_infos(all_tables, &request.selected_tables);
|
|
|
|
// 4. Create file
|
|
let mut file = std::fs::File::create(&request.file_path).map_err(|e| format!("Failed to write file: {e}"))?;
|
|
|
|
// 5. Write header
|
|
let timestamp = chrono::Local::now().format("%Y-%m-%d %H:%M:%S");
|
|
writeln!(file, "-- Database export: {}", request.database).map_err(|e| format!("Failed to write file: {e}"))?;
|
|
writeln!(file, "-- Date: {timestamp}").map_err(|e| format!("Failed to write file: {e}"))?;
|
|
writeln!(file, "-- Generated by DBX").map_err(|e| format!("Failed to write file: {e}"))?;
|
|
writeln!(file).map_err(|e| format!("Failed to write file: {e}"))?;
|
|
|
|
// 6. For MySQL: disable foreign key checks
|
|
if matches!(db_type, DatabaseType::Mysql) {
|
|
writeln!(file, "SET FOREIGN_KEY_CHECKS = 0;\n").map_err(|e| format!("Failed to write file: {e}"))?;
|
|
}
|
|
|
|
// 7. Separate tables and views
|
|
let mut tables: Vec<_> = all_tables.iter().filter(|t| !t.table_type.contains("VIEW")).collect();
|
|
let views: Vec<_> = all_tables.iter().filter(|t| t.table_type.contains("VIEW")).collect();
|
|
let postgres_sequences = if request.include_structure && matches!(db_type, DatabaseType::Postgres) {
|
|
match list_postgres_export_sequences(
|
|
state,
|
|
&pool_key,
|
|
&request.schema,
|
|
&request.selected_tables,
|
|
request.include_objects,
|
|
)
|
|
.await
|
|
{
|
|
Ok(sequences) => sequences,
|
|
Err(e) => {
|
|
writeln!(file, "-- ERROR exporting sequences: {e}")
|
|
.map_err(|e| format!("Failed to write file: {e}"))?;
|
|
Vec::new()
|
|
}
|
|
}
|
|
} else {
|
|
Vec::new()
|
|
};
|
|
|
|
// Sort tables by foreign key dependency so referenced (parent) tables are
|
|
// exported before referencing (child) tables.
|
|
if tables.len() > 1 {
|
|
let table_names: Vec<String> = tables.iter().map(|t| t.name.clone()).collect();
|
|
if let Ok(sorted_names) = crate::transfer::sort_tables_by_fk_dependency(
|
|
state,
|
|
&request.connection_id,
|
|
&request.database,
|
|
&request.schema,
|
|
&table_names,
|
|
true,
|
|
)
|
|
.await
|
|
{
|
|
tables.sort_by_key(|t| sorted_names.iter().position(|n| n == &t.name).unwrap_or(usize::MAX));
|
|
}
|
|
}
|
|
|
|
// 8. Calculate total objects
|
|
let mut total_objects = tables.len() + views.len() + postgres_sequences.len();
|
|
|
|
// We'll add procedures/functions count later if include_objects
|
|
let mut procedures: Vec<String> = Vec::new();
|
|
let mut functions: Vec<String> = Vec::new();
|
|
|
|
if request.include_objects && request.selected_tables.is_empty() {
|
|
if let Ok(objects) = crate::schema::list_objects_core(
|
|
state,
|
|
&request.connection_id,
|
|
&request.database,
|
|
&request.schema,
|
|
None,
|
|
None,
|
|
None,
|
|
None,
|
|
)
|
|
.await
|
|
{
|
|
for obj in &objects {
|
|
let ot = obj.object_type.to_uppercase();
|
|
if ot.contains("PROCEDURE") {
|
|
procedures.push(obj.name.clone());
|
|
} else if ot.contains("FUNCTION") {
|
|
functions.push(obj.name.clone());
|
|
}
|
|
}
|
|
}
|
|
total_objects += procedures.len() + functions.len();
|
|
}
|
|
|
|
let mut object_index: usize = 0;
|
|
|
|
// Export tables
|
|
let batch_size = if request.batch_size == 0 { 1000 } else { request.batch_size };
|
|
|
|
for sequence in postgres_sequences.iter().filter(|sequence| sequence.owner_table.is_none()) {
|
|
if is_export_cancelled(&request.export_id).await {
|
|
return Err("Export cancelled".to_string());
|
|
}
|
|
|
|
on_progress(ExportProgress {
|
|
export_id: request.export_id.clone(),
|
|
current_object: sequence.name.clone(),
|
|
object_index,
|
|
total_objects,
|
|
rows_exported: 0,
|
|
total_rows: None,
|
|
status: ExportStatus::Running,
|
|
error: None,
|
|
});
|
|
|
|
writeln!(file, "{};\n", generate_postgres_sequence_create_ddl(sequence, &request.schema))
|
|
.map_err(|e| format!("Failed to write file: {e}"))?;
|
|
object_index += 1;
|
|
}
|
|
|
|
for table_info in &tables {
|
|
// Check cancellation
|
|
if is_export_cancelled(&request.export_id).await {
|
|
on_progress(ExportProgress {
|
|
export_id: request.export_id.clone(),
|
|
current_object: table_info.name.clone(),
|
|
object_index,
|
|
total_objects,
|
|
rows_exported: 0,
|
|
total_rows: None,
|
|
status: ExportStatus::Cancelled,
|
|
error: None,
|
|
});
|
|
return Ok(());
|
|
}
|
|
|
|
let table_name = &table_info.name;
|
|
|
|
// Emit Running progress
|
|
on_progress(ExportProgress {
|
|
export_id: request.export_id.clone(),
|
|
current_object: table_name.clone(),
|
|
object_index,
|
|
total_objects,
|
|
rows_exported: 0,
|
|
total_rows: None,
|
|
status: ExportStatus::Running,
|
|
error: None,
|
|
});
|
|
|
|
// Export structure
|
|
if request.include_structure {
|
|
if request.drop_table_if_exists {
|
|
writeln!(file, "{}\n", drop_table_if_exists_sql(table_name, &request.schema, &db_type))
|
|
.map_err(|e| format!("Failed to write file: {e}"))?;
|
|
}
|
|
for sequence in postgres_sequences
|
|
.iter()
|
|
.filter(|sequence| sequence.owner_table.as_deref() == Some(table_name.as_str()))
|
|
{
|
|
on_progress(ExportProgress {
|
|
export_id: request.export_id.clone(),
|
|
current_object: sequence.name.clone(),
|
|
object_index,
|
|
total_objects,
|
|
rows_exported: 0,
|
|
total_rows: None,
|
|
status: ExportStatus::Running,
|
|
error: None,
|
|
});
|
|
|
|
writeln!(file, "{};\n", generate_postgres_sequence_create_ddl(sequence, &request.schema))
|
|
.map_err(|e| format!("Failed to write file: {e}"))?;
|
|
object_index += 1;
|
|
}
|
|
match crate::schema::get_table_ddl_core(
|
|
state,
|
|
&request.connection_id,
|
|
&request.database,
|
|
&request.schema,
|
|
table_name,
|
|
None,
|
|
)
|
|
.await
|
|
{
|
|
Ok(ddl) => {
|
|
let ddl = normalize_export_table_ddl(&ddl, Some(db_type));
|
|
writeln!(file, "{};\n", ddl).map_err(|e| format!("Failed to write file: {e}"))?;
|
|
}
|
|
Err(e) => {
|
|
writeln!(file, "-- ERROR exporting table {table_name}: {e}")
|
|
.map_err(|e| format!("Failed to write file: {e}"))?;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Export data
|
|
if request.include_data {
|
|
// Get columns
|
|
let columns = match crate::schema::get_columns_core(
|
|
state,
|
|
&request.connection_id,
|
|
&request.database,
|
|
&request.schema,
|
|
table_name,
|
|
)
|
|
.await
|
|
{
|
|
Ok(cols) => cols,
|
|
Err(e) => {
|
|
writeln!(file, "-- ERROR exporting table {table_name}: {e}")
|
|
.map_err(|e| format!("Failed to write file: {e}"))?;
|
|
object_index += 1;
|
|
continue;
|
|
}
|
|
};
|
|
let col_names = columns.iter().map(|c| c.name.clone()).collect::<Vec<_>>();
|
|
let col_types = columns.iter().map(|c| Some(c.data_type.clone())).collect::<Vec<_>>();
|
|
let col_extras = columns.iter().map(|c| c.extra.clone()).collect::<Vec<_>>();
|
|
|
|
if !col_names.is_empty() {
|
|
// Get row count
|
|
let count_query = crate::transfer::count_sql(table_name, &request.schema, &db_type);
|
|
let total_rows = match crate::transfer::execute_on_pool(state, &pool_key, &count_query).await {
|
|
Ok(result) => result.rows.first().and_then(|r| r.first()).and_then(|v| match v {
|
|
serde_json::Value::Number(n) => n.as_u64(),
|
|
serde_json::Value::String(s) => s.parse::<u64>().ok(),
|
|
_ => None,
|
|
}),
|
|
Err(_) => None,
|
|
};
|
|
|
|
// Loop batches
|
|
let mut offset: u64 = 0;
|
|
let mut rows_exported: u64 = 0;
|
|
|
|
loop {
|
|
// Check cancellation between batches
|
|
if is_export_cancelled(&request.export_id).await {
|
|
on_progress(ExportProgress {
|
|
export_id: request.export_id.clone(),
|
|
current_object: table_name.clone(),
|
|
object_index,
|
|
total_objects,
|
|
rows_exported,
|
|
total_rows,
|
|
status: ExportStatus::Cancelled,
|
|
error: None,
|
|
});
|
|
return Ok(());
|
|
}
|
|
|
|
let sql = crate::transfer::pagination_sql(
|
|
&col_names,
|
|
table_name,
|
|
&request.schema,
|
|
&db_type,
|
|
offset,
|
|
batch_size,
|
|
);
|
|
|
|
let result = match crate::transfer::execute_on_pool(state, &pool_key, &sql).await {
|
|
Ok(r) => r,
|
|
Err(e) => {
|
|
writeln!(file, "-- ERROR exporting data for table {table_name}: {e}")
|
|
.map_err(|e| format!("Failed to write file: {e}"))?;
|
|
break;
|
|
}
|
|
};
|
|
|
|
let row_count = result.rows.len();
|
|
if row_count == 0 {
|
|
break;
|
|
}
|
|
|
|
let mut insert_sql = crate::transfer::generate_insert_typed(
|
|
&col_names,
|
|
&col_types,
|
|
&result.rows,
|
|
table_name,
|
|
&request.schema,
|
|
&db_type,
|
|
);
|
|
if db_type == DatabaseType::Dameng
|
|
&& selected_columns_include_identity_extras(&col_names, &col_extras)
|
|
{
|
|
insert_sql = wrap_dameng_identity_insert_sql(&insert_sql, table_name, &request.schema);
|
|
}
|
|
|
|
if !insert_sql.is_empty() {
|
|
if insert_sql.trim_end().ends_with(';') {
|
|
writeln!(file, "{}\n", insert_sql).map_err(|e| format!("Failed to write file: {e}"))?;
|
|
} else {
|
|
writeln!(file, "{};\n", insert_sql).map_err(|e| format!("Failed to write file: {e}"))?;
|
|
}
|
|
}
|
|
|
|
rows_exported += row_count as u64;
|
|
offset += row_count as u64;
|
|
|
|
on_progress(ExportProgress {
|
|
export_id: request.export_id.clone(),
|
|
current_object: table_name.clone(),
|
|
object_index,
|
|
total_objects,
|
|
rows_exported,
|
|
total_rows,
|
|
status: ExportStatus::Running,
|
|
error: None,
|
|
});
|
|
|
|
if row_count < batch_size {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
object_index += 1;
|
|
}
|
|
|
|
if request.include_structure && !postgres_sequences.is_empty() {
|
|
for sequence in &postgres_sequences {
|
|
if let Some(sql) = generate_postgres_sequence_owner_ddl(sequence, &request.schema) {
|
|
writeln!(file, "{};\n", sql).map_err(|e| format!("Failed to write file: {e}"))?;
|
|
}
|
|
}
|
|
for sequence in &postgres_sequences {
|
|
if let Some(sql) = generate_postgres_sequence_setval_sql(sequence, &request.schema) {
|
|
writeln!(file, "{};\n", sql).map_err(|e| format!("Failed to write file: {e}"))?;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Export views (if include_objects)
|
|
if request.include_objects {
|
|
for view_info in &views {
|
|
if is_export_cancelled(&request.export_id).await {
|
|
return Err("Export cancelled".to_string());
|
|
}
|
|
|
|
let view_name = &view_info.name;
|
|
|
|
on_progress(ExportProgress {
|
|
export_id: request.export_id.clone(),
|
|
current_object: view_name.clone(),
|
|
object_index,
|
|
total_objects,
|
|
rows_exported: 0,
|
|
total_rows: None,
|
|
status: ExportStatus::Running,
|
|
error: None,
|
|
});
|
|
|
|
match crate::schema::get_object_source_core(
|
|
state,
|
|
&request.connection_id,
|
|
&request.database,
|
|
&request.schema,
|
|
view_name,
|
|
crate::db::ObjectSourceKind::View,
|
|
)
|
|
.await
|
|
{
|
|
Ok(obj_source) => {
|
|
if !obj_source.source.is_empty() {
|
|
writeln!(file, "{};\n", obj_source.source).map_err(|e| format!("Failed to write file: {e}"))?;
|
|
}
|
|
}
|
|
Err(e) => {
|
|
writeln!(file, "-- ERROR exporting view {view_name}: {e}")
|
|
.map_err(|e| format!("Failed to write file: {e}"))?;
|
|
}
|
|
}
|
|
|
|
object_index += 1;
|
|
}
|
|
|
|
// Export procedures
|
|
for proc_name in &procedures {
|
|
if is_export_cancelled(&request.export_id).await {
|
|
return Err("Export cancelled".to_string());
|
|
}
|
|
|
|
on_progress(ExportProgress {
|
|
export_id: request.export_id.clone(),
|
|
current_object: proc_name.clone(),
|
|
object_index,
|
|
total_objects,
|
|
rows_exported: 0,
|
|
total_rows: None,
|
|
status: ExportStatus::Running,
|
|
error: None,
|
|
});
|
|
|
|
match crate::schema::get_object_source_core(
|
|
state,
|
|
&request.connection_id,
|
|
&request.database,
|
|
&request.schema,
|
|
proc_name,
|
|
crate::db::ObjectSourceKind::Procedure,
|
|
)
|
|
.await
|
|
{
|
|
Ok(obj_source) => {
|
|
if !obj_source.source.is_empty() {
|
|
writeln!(file, "{};\n", obj_source.source).map_err(|e| format!("Failed to write file: {e}"))?;
|
|
}
|
|
}
|
|
Err(e) => {
|
|
writeln!(file, "-- ERROR exporting procedure {proc_name}: {e}")
|
|
.map_err(|e| format!("Failed to write file: {e}"))?;
|
|
}
|
|
}
|
|
|
|
object_index += 1;
|
|
}
|
|
|
|
// Export functions
|
|
for func_name in &functions {
|
|
if is_export_cancelled(&request.export_id).await {
|
|
return Err("Export cancelled".to_string());
|
|
}
|
|
|
|
on_progress(ExportProgress {
|
|
export_id: request.export_id.clone(),
|
|
current_object: func_name.clone(),
|
|
object_index,
|
|
total_objects,
|
|
rows_exported: 0,
|
|
total_rows: None,
|
|
status: ExportStatus::Running,
|
|
error: None,
|
|
});
|
|
|
|
match crate::schema::get_object_source_core(
|
|
state,
|
|
&request.connection_id,
|
|
&request.database,
|
|
&request.schema,
|
|
func_name,
|
|
crate::db::ObjectSourceKind::Function,
|
|
)
|
|
.await
|
|
{
|
|
Ok(obj_source) => {
|
|
if !obj_source.source.is_empty() {
|
|
writeln!(file, "{};\n", obj_source.source).map_err(|e| format!("Failed to write file: {e}"))?;
|
|
}
|
|
}
|
|
Err(e) => {
|
|
writeln!(file, "-- ERROR exporting function {func_name}: {e}")
|
|
.map_err(|e| format!("Failed to write file: {e}"))?;
|
|
}
|
|
}
|
|
|
|
object_index += 1;
|
|
}
|
|
}
|
|
|
|
// For MySQL: re-enable foreign key checks
|
|
if matches!(db_type, DatabaseType::Mysql) {
|
|
writeln!(file, "SET FOREIGN_KEY_CHECKS = 1;").map_err(|e| format!("Failed to write file: {e}"))?;
|
|
}
|
|
|
|
// Emit Done progress
|
|
on_progress(ExportProgress {
|
|
export_id: request.export_id.clone(),
|
|
current_object: String::new(),
|
|
object_index,
|
|
total_objects,
|
|
rows_exported: 0,
|
|
total_rows: None,
|
|
status: ExportStatus::Done,
|
|
error: None,
|
|
});
|
|
|
|
Ok(())
|
|
}
|
|
|
|
fn filter_selected_table_infos(
|
|
tables: Vec<crate::types::TableInfo>,
|
|
selected_tables: &[String],
|
|
) -> Vec<crate::types::TableInfo> {
|
|
if selected_tables.is_empty() {
|
|
return tables;
|
|
}
|
|
let selected: HashSet<&str> = selected_tables.iter().map(String::as_str).collect();
|
|
tables.into_iter().filter(|table| selected.contains(table.name.as_str())).collect()
|
|
}
|
|
|
|
fn drop_table_if_exists_sql(table_name: &str, schema: &str, db_type: &DatabaseType) -> String {
|
|
format!("DROP TABLE IF EXISTS {};", crate::transfer::qualified_table(table_name, schema, db_type))
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::{
|
|
build_database_sql_export, build_export_insert_statements, drop_table_if_exists_sql,
|
|
filter_selected_table_infos, format_export_sql_literal, generate_postgres_sequence_create_ddl,
|
|
generate_postgres_sequence_owner_ddl, generate_postgres_sequence_setval_sql, normalize_export_table_ddl,
|
|
BuildDatabaseSqlExportOptions, BuildExportInsertStatementsOptions, ExportedTableSql, PostgresExportSequence,
|
|
DATABASE_EXPORT_INSERT_BATCH_SIZE, DATABASE_EXPORT_ROW_LIMIT,
|
|
};
|
|
use crate::models::connection::DatabaseType;
|
|
use crate::types::TableInfo;
|
|
use serde_json::{json, Value};
|
|
|
|
fn table(name: &str, table_type: &str) -> TableInfo {
|
|
TableInfo {
|
|
name: name.to_string(),
|
|
table_type: table_type.to_string(),
|
|
comment: None,
|
|
parent_schema: None,
|
|
parent_name: None,
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn filters_export_tables_by_selected_names() {
|
|
let tables = vec![table("users", "TABLE"), table("orders", "TABLE"), table("active_users", "VIEW")];
|
|
|
|
let filtered = filter_selected_table_infos(tables, &["active_users".to_string(), "users".to_string()]);
|
|
|
|
assert_eq!(filtered.iter().map(|table| table.name.as_str()).collect::<Vec<_>>(), vec!["users", "active_users"]);
|
|
}
|
|
|
|
#[test]
|
|
fn keeps_all_export_tables_when_selection_is_empty() {
|
|
let tables = vec![table("users", "TABLE"), table("orders", "TABLE")];
|
|
|
|
let filtered = filter_selected_table_infos(tables.clone(), &[]);
|
|
|
|
assert_eq!(filtered.iter().map(|table| table.name.as_str()).collect::<Vec<_>>(), vec!["users", "orders"]);
|
|
}
|
|
|
|
#[test]
|
|
fn builds_drop_table_if_exists_with_qualified_mysql_name() {
|
|
let sql = drop_table_if_exists_sql("users", "app", &DatabaseType::Mysql);
|
|
|
|
assert_eq!(sql, "DROP TABLE IF EXISTS `users`;");
|
|
}
|
|
|
|
#[test]
|
|
fn builds_drop_table_if_exists_without_empty_schema() {
|
|
let sql = drop_table_if_exists_sql("users", "", &DatabaseType::Postgres);
|
|
|
|
assert_eq!(sql, "DROP TABLE IF EXISTS \"users\";");
|
|
}
|
|
|
|
#[test]
|
|
fn formats_sql_literals_for_export_inserts() {
|
|
assert_eq!(format_export_sql_literal(&Value::Null), "NULL");
|
|
assert_eq!(format_export_sql_literal(&json!(42)), "42");
|
|
assert_eq!(format_export_sql_literal(&json!(true)), "TRUE");
|
|
assert_eq!(format_export_sql_literal(&json!("O'Hara")), "'O''Hara'");
|
|
}
|
|
|
|
#[test]
|
|
fn mysql_export_inserts_escape_control_characters() {
|
|
let statements = build_export_insert_statements(BuildExportInsertStatementsOptions {
|
|
database_type: Some(DatabaseType::Mysql),
|
|
schema: None,
|
|
table_name: Some("notes".to_string()),
|
|
qualified_table_name: None,
|
|
columns: vec!["body".to_string()],
|
|
column_types: vec![Some("text".to_string())],
|
|
column_extras: Vec::new(),
|
|
rows: vec![vec![json!("line1\nline2\tcol\rend\\slash\0\x1aO'Hara")]],
|
|
batch_size: Some(10),
|
|
})
|
|
.unwrap();
|
|
|
|
assert_eq!(
|
|
statements,
|
|
vec!["INSERT INTO `notes` (`body`) VALUES ('line1\\nline2\\tcol\\rend\\\\slash\\0\\ZO''Hara');"]
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn doris_export_inserts_escape_control_characters() {
|
|
let statements = build_export_insert_statements(BuildExportInsertStatementsOptions {
|
|
database_type: Some(DatabaseType::Doris),
|
|
schema: Some("warehouse".to_string()),
|
|
table_name: Some("events".to_string()),
|
|
qualified_table_name: None,
|
|
columns: vec!["message".to_string()],
|
|
column_types: vec![Some("varchar(255)".to_string())],
|
|
column_extras: Vec::new(),
|
|
rows: vec![vec![json!("first\nsecond\tthird")]],
|
|
batch_size: Some(10),
|
|
})
|
|
.unwrap();
|
|
|
|
assert_eq!(statements, vec!["INSERT INTO `warehouse`.`events` (`message`) VALUES ('first\\nsecond\\tthird');"]);
|
|
}
|
|
|
|
#[test]
|
|
fn postgres_export_inserts_keep_literal_control_characters() {
|
|
let statements = build_export_insert_statements(BuildExportInsertStatementsOptions {
|
|
database_type: Some(DatabaseType::Postgres),
|
|
schema: Some("public".to_string()),
|
|
table_name: Some("notes".to_string()),
|
|
qualified_table_name: None,
|
|
columns: vec!["body".to_string()],
|
|
column_types: vec![Some("text".to_string())],
|
|
column_extras: Vec::new(),
|
|
rows: vec![vec![json!("line1\nline2\tend")]],
|
|
batch_size: Some(10),
|
|
})
|
|
.unwrap();
|
|
|
|
assert_eq!(statements, vec!["INSERT INTO \"public\".\"notes\" (\"body\") VALUES ('line1\nline2\tend');"]);
|
|
}
|
|
|
|
#[test]
|
|
fn postgres_jsonb_export_preserves_json_escape_sequences() {
|
|
let statements = build_export_insert_statements(BuildExportInsertStatementsOptions {
|
|
database_type: Some(DatabaseType::Postgres),
|
|
schema: Some("public".to_string()),
|
|
table_name: Some("events".to_string()),
|
|
qualified_table_name: None,
|
|
columns: vec!["payload".to_string()],
|
|
column_types: vec![Some("jsonb".to_string())],
|
|
column_extras: Vec::new(),
|
|
rows: vec![vec![json!(r#"{"text":"say \"hi\"","path":"C:\\tmp","quote":"O'Hara"}"#)]],
|
|
batch_size: Some(10),
|
|
})
|
|
.unwrap();
|
|
|
|
assert_eq!(
|
|
statements,
|
|
vec![
|
|
r#"INSERT INTO "public"."events" ("payload") VALUES ('{"text":"say \"hi\"","path":"C:\\tmp","quote":"O''Hara"}');"#
|
|
]
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn builds_batched_insert_statements_for_export() {
|
|
let statements = build_export_insert_statements(BuildExportInsertStatementsOptions {
|
|
database_type: Some(DatabaseType::Mysql),
|
|
schema: None,
|
|
table_name: Some("users".to_string()),
|
|
qualified_table_name: None,
|
|
columns: vec!["id".to_string(), "name".to_string()],
|
|
column_types: Vec::new(),
|
|
column_extras: Vec::new(),
|
|
rows: vec![vec![json!(1), json!("Ada")], vec![json!(2), json!("O'Hara")], vec![json!(3), json!("Linus")]],
|
|
batch_size: Some(2),
|
|
})
|
|
.unwrap();
|
|
|
|
assert_eq!(
|
|
statements,
|
|
vec![
|
|
"INSERT INTO `users` (`id`, `name`) VALUES (1, 'Ada'), (2, 'O''Hara');",
|
|
"INSERT INTO `users` (`id`, `name`) VALUES (3, 'Linus');",
|
|
]
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn oracle_export_inserts_use_one_statement_per_row() {
|
|
let statements = build_export_insert_statements(BuildExportInsertStatementsOptions {
|
|
database_type: Some(DatabaseType::Oracle),
|
|
schema: Some("APP".to_string()),
|
|
table_name: Some("USERS".to_string()),
|
|
qualified_table_name: None,
|
|
columns: vec!["ID".to_string(), "NAME".to_string()],
|
|
column_types: Vec::new(),
|
|
column_extras: Vec::new(),
|
|
rows: vec![vec![json!(1), json!("Ada")], vec![json!(2), json!("Linus")]],
|
|
batch_size: Some(100),
|
|
})
|
|
.unwrap();
|
|
|
|
assert_eq!(
|
|
statements,
|
|
vec![
|
|
"INSERT INTO \"APP\".\"USERS\" (\"ID\", \"NAME\") VALUES (1, 'Ada');",
|
|
"INSERT INTO \"APP\".\"USERS\" (\"ID\", \"NAME\") VALUES (2, 'Linus');",
|
|
]
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn mysql_bit_columns_export_without_quoted_string_values() {
|
|
let statements = build_export_insert_statements(BuildExportInsertStatementsOptions {
|
|
database_type: Some(DatabaseType::Mysql),
|
|
schema: None,
|
|
table_name: Some("flags".to_string()),
|
|
qualified_table_name: None,
|
|
columns: vec!["enabled".to_string(), "mask".to_string(), "label".to_string()],
|
|
column_types: vec![Some("bit(1)".to_string()), Some("BIT(4)".to_string()), Some("varchar(20)".to_string())],
|
|
column_extras: Vec::new(),
|
|
rows: vec![vec![json!("1"), json!("1010"), json!("1010")], vec![json!(false), json!(3), json!("off")]],
|
|
batch_size: Some(10),
|
|
})
|
|
.unwrap();
|
|
|
|
assert_eq!(
|
|
statements,
|
|
vec!["INSERT INTO `flags` (`enabled`, `mask`, `label`) VALUES (b'1', b'1010', '1010'), (b'0', 3, 'off');"]
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn mysql_export_uses_typed_literals_for_numeric_and_blob_columns() {
|
|
let statements = build_export_insert_statements(BuildExportInsertStatementsOptions {
|
|
database_type: Some(DatabaseType::Mysql),
|
|
schema: None,
|
|
table_name: Some("t_test_01".to_string()),
|
|
qualified_table_name: None,
|
|
columns: vec!["id".to_string(), "f_blob".to_string(), "note".to_string()],
|
|
column_types: vec![Some("int".to_string()), Some("blob".to_string()), Some("varchar(64)".to_string())],
|
|
column_extras: Vec::new(),
|
|
rows: vec![
|
|
vec![json!("1"), json!("0x68656c6c6f"), json!("0x68656c6c6f")],
|
|
vec![json!("2"), json!("0X"), json!("1")],
|
|
],
|
|
batch_size: Some(10),
|
|
})
|
|
.unwrap();
|
|
|
|
assert_eq!(
|
|
statements,
|
|
vec![
|
|
"INSERT INTO `t_test_01` (`id`, `f_blob`, `note`) VALUES (1, 0x68656c6c6f, '0x68656c6c6f'), (2, X'', '1');"
|
|
]
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn temporal_columns_export_without_rfc3339_separator_or_utc_suffix() {
|
|
let statements = build_export_insert_statements(BuildExportInsertStatementsOptions {
|
|
database_type: Some(DatabaseType::Mysql),
|
|
schema: None,
|
|
table_name: Some("events".to_string()),
|
|
qualified_table_name: None,
|
|
columns: vec!["id".to_string(), "created_at".to_string(), "created_on".to_string(), "raw_text".to_string()],
|
|
column_types: vec![
|
|
Some("int".to_string()),
|
|
Some("timestamp".to_string()),
|
|
Some("date".to_string()),
|
|
Some("varchar(64)".to_string()),
|
|
],
|
|
column_extras: Vec::new(),
|
|
rows: vec![vec![
|
|
json!(1),
|
|
json!("2026-06-12T10:11:12.123456789Z"),
|
|
json!("2026-06-12T10:11:12Z"),
|
|
json!("2026-06-12T10:11:12Z"),
|
|
]],
|
|
batch_size: Some(10),
|
|
})
|
|
.unwrap();
|
|
|
|
assert_eq!(
|
|
statements,
|
|
vec![
|
|
"INSERT INTO `events` (`id`, `created_at`, `created_on`, `raw_text`) VALUES (1, '2026-06-12 10:11:12.123456', '2026-06-12', '2026-06-12T10:11:12Z');"
|
|
]
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn postgres_timestamptz_export_keeps_timezone_without_rfc3339_t_separator() {
|
|
let statements = build_export_insert_statements(BuildExportInsertStatementsOptions {
|
|
database_type: Some(DatabaseType::Postgres),
|
|
schema: Some("public".to_string()),
|
|
table_name: Some("events".to_string()),
|
|
qualified_table_name: None,
|
|
columns: vec!["recorded_at".to_string(), "local_at".to_string()],
|
|
column_types: vec![
|
|
Some("timestamp with time zone".to_string()),
|
|
Some("timestamp without time zone".to_string()),
|
|
],
|
|
column_extras: Vec::new(),
|
|
rows: vec![vec![json!("2026-06-12T10:11:12Z"), json!("2026-06-12T18:11:12+08:00")]],
|
|
batch_size: Some(10),
|
|
})
|
|
.unwrap();
|
|
|
|
assert_eq!(
|
|
statements,
|
|
vec![
|
|
"INSERT INTO \"public\".\"events\" (\"recorded_at\", \"local_at\") VALUES ('2026-06-12 10:11:12+00:00', '2026-06-12 18:11:12');"
|
|
]
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn sqlserver_rowversion_timestamp_type_is_not_treated_as_datetime() {
|
|
let statements = build_export_insert_statements(BuildExportInsertStatementsOptions {
|
|
database_type: Some(DatabaseType::SqlServer),
|
|
schema: Some("dbo".to_string()),
|
|
table_name: Some("events".to_string()),
|
|
qualified_table_name: None,
|
|
columns: vec!["row_version".to_string(), "created_at".to_string()],
|
|
column_types: vec![Some("timestamp".to_string()), Some("datetime2(3)".to_string())],
|
|
column_extras: Vec::new(),
|
|
rows: vec![vec![json!("2026-06-12T10:11:12Z"), json!("2026-06-12T10:11:12.1234567Z")]],
|
|
batch_size: Some(10),
|
|
})
|
|
.unwrap();
|
|
|
|
assert_eq!(
|
|
statements,
|
|
vec![
|
|
"INSERT INTO [dbo].[events] ([row_version], [created_at]) VALUES ('2026-06-12T10:11:12Z', '2026-06-12 10:11:12.123');"
|
|
]
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn postgres_tsvector_columns_are_omitted_from_sql_insert_export() {
|
|
let statements = build_export_insert_statements(BuildExportInsertStatementsOptions {
|
|
database_type: Some(DatabaseType::Postgres),
|
|
schema: Some("public".to_string()),
|
|
table_name: Some("articles".to_string()),
|
|
qualified_table_name: None,
|
|
columns: vec!["id".to_string(), "title".to_string(), "search_vector".to_string()],
|
|
column_types: vec![Some("integer".to_string()), Some("text".to_string()), Some("tsvector".to_string())],
|
|
column_extras: Vec::new(),
|
|
rows: vec![vec![json!(1), json!("Hello"), json!("'hello':1A")]],
|
|
batch_size: Some(10),
|
|
})
|
|
.unwrap();
|
|
|
|
assert_eq!(statements, vec!["INSERT INTO \"public\".\"articles\" (\"id\", \"title\") VALUES (1, 'Hello');"]);
|
|
}
|
|
|
|
#[test]
|
|
fn dameng_identity_export_inserts_enable_identity_insert() {
|
|
let statements = build_export_insert_statements(BuildExportInsertStatementsOptions {
|
|
database_type: Some(DatabaseType::Dameng),
|
|
schema: Some("SYSDBA".to_string()),
|
|
table_name: Some("USERS".to_string()),
|
|
qualified_table_name: None,
|
|
columns: vec!["ID".to_string(), "NAME".to_string()],
|
|
column_types: vec![Some("INT".to_string()), Some("VARCHAR(20)".to_string())],
|
|
column_extras: vec![Some("identity".to_string()), None],
|
|
rows: vec![vec![json!(1), json!("Ada")]],
|
|
batch_size: Some(10),
|
|
})
|
|
.unwrap();
|
|
|
|
assert_eq!(
|
|
statements,
|
|
vec![
|
|
"SET IDENTITY_INSERT \"SYSDBA\".\"USERS\" ON;\nINSERT INTO \"SYSDBA\".\"USERS\" (\"ID\", \"NAME\") VALUES (1, 'Ada');\nSET IDENTITY_INSERT \"SYSDBA\".\"USERS\" OFF;"
|
|
]
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn builds_database_sql_export_with_ddl_before_data() {
|
|
let sql = build_database_sql_export(BuildDatabaseSqlExportOptions {
|
|
database_name: "app".to_string(),
|
|
exported_at: Some("2026-05-02T00:00:00.000Z".to_string()),
|
|
tables: vec![ExportedTableSql {
|
|
display_name: "users".to_string(),
|
|
database_type: Some(DatabaseType::Mysql),
|
|
schema: None,
|
|
table_name: Some("users".to_string()),
|
|
qualified_table_name: None,
|
|
ddl: Some("CREATE TABLE `users` (`id` int);".to_string()),
|
|
columns: vec!["id".to_string()],
|
|
column_types: Vec::new(),
|
|
column_extras: Vec::new(),
|
|
rows: vec![vec![json!(1)]],
|
|
truncated: true,
|
|
}],
|
|
row_limit_per_table: Some(DATABASE_EXPORT_ROW_LIMIT),
|
|
insert_batch_size: Some(DATABASE_EXPORT_INSERT_BATCH_SIZE),
|
|
connection_id: None,
|
|
database: None,
|
|
schema: None,
|
|
})
|
|
.unwrap();
|
|
|
|
assert_eq!(
|
|
sql,
|
|
[
|
|
"-- DBX database export".to_string(),
|
|
"-- Database: app".to_string(),
|
|
"-- Exported at: 2026-05-02T00:00:00.000Z".to_string(),
|
|
format!("-- Row limit per table: {DATABASE_EXPORT_ROW_LIMIT}"),
|
|
String::new(),
|
|
"-- Structure for users".to_string(),
|
|
"CREATE TABLE `users` (`id` int);".to_string(),
|
|
String::new(),
|
|
"-- Data for users".to_string(),
|
|
format!("-- Exported rows: 1 (truncated at {DATABASE_EXPORT_ROW_LIMIT})"),
|
|
"INSERT INTO `users` (`id`) VALUES (1);".to_string(),
|
|
String::new(),
|
|
]
|
|
.join("\n")
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn normalizes_legacy_mysql_row_format_for_export_compatibility() {
|
|
let ddl = "CREATE TABLE `wide_table` (\n `payload` varchar(4096) DEFAULT NULL\n) ENGINE=InnoDB DEFAULT CHARSET=utf8 ROW_FORMAT=COMPACT";
|
|
|
|
let normalized = normalize_export_table_ddl(ddl, Some(DatabaseType::Mysql));
|
|
|
|
assert_eq!(
|
|
normalized,
|
|
"CREATE TABLE `wide_table` (\n `payload` varchar(4096) DEFAULT NULL\n) ENGINE=InnoDB DEFAULT CHARSET=utf8 ROW_FORMAT=DYNAMIC"
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn normalizes_lowercase_redundant_mysql_row_format_for_export_compatibility() {
|
|
let ddl = "CREATE TABLE `wide_table` (`payload` varchar(4096)) engine=InnoDB row_format = redundant";
|
|
|
|
let normalized = normalize_export_table_ddl(ddl, Some(DatabaseType::Mysql));
|
|
|
|
assert_eq!(normalized, "CREATE TABLE `wide_table` (`payload` varchar(4096)) engine=InnoDB ROW_FORMAT=DYNAMIC");
|
|
}
|
|
|
|
#[test]
|
|
fn preserves_non_legacy_or_non_mysql_row_formats() {
|
|
let mysql_ddl = "CREATE TABLE `ok` (`payload` text) ENGINE=InnoDB ROW_FORMAT=COMPRESSED";
|
|
let postgres_ddl = "CREATE TABLE users (payload text) ROW_FORMAT=COMPACT";
|
|
|
|
assert_eq!(normalize_export_table_ddl(mysql_ddl, Some(DatabaseType::Mysql)), mysql_ddl);
|
|
assert_eq!(normalize_export_table_ddl(postgres_ddl, Some(DatabaseType::Postgres)), postgres_ddl);
|
|
}
|
|
|
|
fn postgres_sequence(name: &str) -> PostgresExportSequence {
|
|
PostgresExportSequence {
|
|
name: name.to_string(),
|
|
data_type: "integer".to_string(),
|
|
start_value: "1".to_string(),
|
|
min_value: "1".to_string(),
|
|
max_value: "2147483647".to_string(),
|
|
increment: "1".to_string(),
|
|
cycle: false,
|
|
cache_value: "1".to_string(),
|
|
last_value: Some("42".to_string()),
|
|
owner_table: Some("permissions".to_string()),
|
|
owner_column: Some("id".to_string()),
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn postgres_sequence_create_ddl_is_importable_before_table_ddl() {
|
|
let ddl = generate_postgres_sequence_create_ddl(&postgres_sequence("permissions_id_seq"), "public");
|
|
|
|
assert_eq!(
|
|
ddl,
|
|
[
|
|
"CREATE SEQUENCE IF NOT EXISTS \"public\".\"permissions_id_seq\"",
|
|
" AS integer",
|
|
" START WITH 1",
|
|
" INCREMENT BY 1",
|
|
" MINVALUE 1",
|
|
" MAXVALUE 2147483647",
|
|
" CACHE 1",
|
|
" NO CYCLE",
|
|
]
|
|
.join("\n")
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn postgres_sequence_owner_and_setval_sql_are_qualified() {
|
|
let sequence = postgres_sequence("permissions_id_seq");
|
|
|
|
assert_eq!(
|
|
generate_postgres_sequence_owner_ddl(&sequence, "public").as_deref(),
|
|
Some("ALTER SEQUENCE \"public\".\"permissions_id_seq\" OWNED BY \"public\".\"permissions\".\"id\"")
|
|
);
|
|
assert_eq!(
|
|
generate_postgres_sequence_setval_sql(&sequence, "public").as_deref(),
|
|
Some(
|
|
"SELECT setval('\"public\".\"permissions_id_seq\"', GREATEST(COALESCE(MAX(\"id\"), 42), 42), true) FROM \"public\".\"permissions\""
|
|
)
|
|
);
|
|
}
|
|
}
|