fix(mysql): show scheduled events in the sidebar

crates/dbx-core/src/object_source_sql.rs

@@ -347,6 +347,7 @@ fn object_type_keyword(object_type: &ObjectSourceKind) -> &'static str {
         ObjectSourceKind::Procedure => "PROCEDURE",
         ObjectSourceKind::Function => "FUNCTION",
         ObjectSourceKind::Trigger => "TRIGGER",
+        ObjectSourceKind::Event => "EVENT",
         ObjectSourceKind::Sequence => "SEQUENCE",
         ObjectSourceKind::Synonym => "SYNONYM",
         ObjectSourceKind::Package => "PACKAGE",

crates/dbx-core/src/schema.rs

@@ -2771,16 +2771,16 @@ mod tests {
         dameng_object_statistics_rows_only_sql, dameng_object_statistics_user_segments_sql, deduplicate_column_infos,
         ephemeral_agent_metadata_session_id, external_driver_uses_mysql_ddl, filter_mongodb_agent_collections,
         filter_mysql_system_databases_for_config, filter_object_infos, filter_table_infos, filter_visible_schema_names,
-        gaussdb_m_view_object_source_sql, gbase8a_object_statistics_sql, is_agent_postgres_metadata_fallback_config,
-        is_mysql_external_driver_config, is_retryable_metadata_error, metadata_error_action,
-        metadata_name_or_comment_matches, mysql_database_list_timeout, mysql_external_driver_ddl_from_query_result,
-        mysql_external_driver_ddl_sql, mysql_object_source_ddl_column_index, mysql_object_source_sql,
-        mysql_table_list_source_for_config, mysql_table_metadata_catalog, normalize_information_schema_table_type,
-        oracle_columns_from_query_result, oracle_columns_sql, oracle_object_statistics_dba_segments_sql,
-        oracle_object_statistics_from_query_result, oracle_object_statistics_rows_only_sql,
-        oracle_object_statistics_sql, oracle_object_statistics_user_segments_sql,
-        oracle_table_comment_from_query_result, oracle_table_comment_sql, oracle_table_comments_sql,
-        presto_like_columns_from_query_result, presto_like_information_schema_columns_sql,
+        finalize_object_source, gaussdb_m_view_object_source_sql, gbase8a_object_statistics_sql,
+        is_agent_postgres_metadata_fallback_config, is_mysql_external_driver_config, is_retryable_metadata_error,
+        metadata_error_action, metadata_name_or_comment_matches, mysql_database_list_timeout,
+        mysql_external_driver_ddl_from_query_result, mysql_external_driver_ddl_sql,
+        mysql_object_source_ddl_column_index, mysql_object_source_sql, mysql_table_list_source_for_config,
+        mysql_table_metadata_catalog, normalize_information_schema_table_type, oracle_columns_from_query_result,
+        oracle_columns_sql, oracle_object_statistics_dba_segments_sql, oracle_object_statistics_from_query_result,
+        oracle_object_statistics_rows_only_sql, oracle_object_statistics_sql,
+        oracle_object_statistics_user_segments_sql, oracle_table_comment_from_query_result, oracle_table_comment_sql,
+        oracle_table_comments_sql, presto_like_columns_from_query_result, presto_like_information_schema_columns_sql,
         presto_like_information_schema_tables_sql, presto_like_tables_from_query_result, replace_metadata_runtime,
         should_query_oracle_columns_via_sql_first, table_comments_from_query_result, table_name_filter_matches,
         tdengine_table_comment_like_pattern, tdengine_table_comment_sql, tdengine_table_comments_sql,
@@ -3345,6 +3345,27 @@ mod tests {
         );
     }
 
+    #[test]
+    fn mysql_object_source_sql_emits_show_create_event() {
+        assert_eq!(
+            mysql_object_source_sql("tenant_db", "event_daily_sync", &db::ObjectSourceKind::Event),
+            "SHOW CREATE EVENT `tenant_db`.`event_daily_sync`"
+        );
+    }
+
+    #[test]
+    fn mysql_event_object_source_is_read_only() {
+        let source = finalize_object_source(db::ObjectSource {
+            name: "event_daily_sync".to_string(),
+            object_type: db::ObjectSourceKind::Event,
+            schema: None,
+            source: "CREATE EVENT event_daily_sync ON SCHEDULE EVERY 1 DAY DO SELECT 1".to_string(),
+            editable: None,
+        });
+
+        assert_eq!(source.editable, Some(false));
+    }
+
     #[test]
     fn mysql_object_source_sql_emits_show_create_materialized_view() {
         // Regression for the review comment: Doris / StarRocks ride on the MySQL
@@ -3373,6 +3394,10 @@ mod tests {
         assert_eq!(mysql_object_source_ddl_column_index(&db::ObjectSourceKind::Procedure), 2);
         assert_eq!(mysql_object_source_ddl_column_index(&db::ObjectSourceKind::Function), 2);
         assert_eq!(mysql_object_source_ddl_column_index(&db::ObjectSourceKind::Trigger), 2);
+        // SHOW CREATE EVENT returns (Event, sql_mode, time_zone, Create Event, …) —
+        // one extra time_zone column before the DDL, verified against a real MySQL
+        // 8.0 instance (`SHOW CREATE EVENT` for a live event).
+        assert_eq!(mysql_object_source_ddl_column_index(&db::ObjectSourceKind::Event), 3);
     }
 
     #[test]
@@ -7235,6 +7260,7 @@ fn sqlite_object_type(kind: &db::ObjectSourceKind) -> &'static str {
         db::ObjectSourceKind::Procedure
         | db::ObjectSourceKind::Function
         | db::ObjectSourceKind::Trigger
+        | db::ObjectSourceKind::Event
         | db::ObjectSourceKind::Sequence
         | db::ObjectSourceKind::Synonym
         | db::ObjectSourceKind::Package
@@ -7250,7 +7276,8 @@ fn sqlserver_object_type_filter(kind: &db::ObjectSourceKind) -> &'static str {
         db::ObjectSourceKind::Procedure => "'P'",
         db::ObjectSourceKind::Function => "'FN','IF','TF','FS','FT'",
         db::ObjectSourceKind::Trigger => "'TR'",
-        db::ObjectSourceKind::Sequence
+        db::ObjectSourceKind::Event
+        | db::ObjectSourceKind::Sequence
         | db::ObjectSourceKind::Synonym
         | db::ObjectSourceKind::Package
         | db::ObjectSourceKind::PackageBody
@@ -7488,6 +7515,7 @@ fn postgres_object_source_sql_inner(
             )
         }
         db::ObjectSourceKind::Trigger
+        | db::ObjectSourceKind::Event
         | db::ObjectSourceKind::Synonym
         | db::ObjectSourceKind::Package
         | db::ObjectSourceKind::PackageBody
@@ -7503,6 +7531,7 @@ pub fn oracle_object_source_sql(schema: &str, name: &str, kind: &db::ObjectSourc
         db::ObjectSourceKind::Procedure => "PROCEDURE",
         db::ObjectSourceKind::Function => "FUNCTION",
         db::ObjectSourceKind::Trigger => "TRIGGER",
+        db::ObjectSourceKind::Event => "EVENT",
         db::ObjectSourceKind::Sequence => "SEQUENCE",
         db::ObjectSourceKind::Synonym => "SYNONYM",
         db::ObjectSourceKind::Package => "PACKAGE",
@@ -7559,6 +7588,7 @@ pub fn mysql_object_source_sql(database: &str, name: &str, kind: &db::ObjectSour
         db::ObjectSourceKind::Procedure => format!("SHOW CREATE PROCEDURE {qualified_name}"),
         db::ObjectSourceKind::Function => format!("SHOW CREATE FUNCTION {qualified_name}"),
         db::ObjectSourceKind::Trigger => format!("SHOW CREATE TRIGGER {qualified_name}"),
+        db::ObjectSourceKind::Event => format!("SHOW CREATE EVENT {qualified_name}"),
         db::ObjectSourceKind::Sequence
         | db::ObjectSourceKind::Synonym
         | db::ObjectSourceKind::Package
@@ -7585,6 +7615,8 @@ pub fn mysql_object_source_sql(database: &str, name: &str, kind: &db::ObjectSour
 ///   `(Name, DDL)` → DDL at index `1`.
 /// - `SHOW CREATE PROCEDURE`, `SHOW CREATE FUNCTION`, `SHOW CREATE TRIGGER` →
 ///   `(Name, sql_mode, DDL, …)` → DDL at index `2`.
+/// - `SHOW CREATE EVENT` → `(Event, sql_mode, time_zone, Create Event, …)` →
+///   DDL at index `3` (it has an extra `time_zone` column before the DDL).
 ///
 /// Encoded as a function so the index can be unit-tested without a live DB.
 pub(crate) fn mysql_object_source_ddl_column_index(kind: &db::ObjectSourceKind) -> usize {
@@ -7599,6 +7631,7 @@ pub(crate) fn mysql_object_source_ddl_column_index(kind: &db::ObjectSourceKind)
         | db::ObjectSourceKind::PackageBody
         | db::ObjectSourceKind::Type
         | db::ObjectSourceKind::TypeBody => 2,
+        db::ObjectSourceKind::Event => 3,
     }
 }
 
@@ -7804,7 +7837,7 @@ pub async fn get_object_source_core(
     signature: Option<&str>,
     relation_name: Option<&str>,
 ) -> Result<db::ObjectSource, String> {
-    let mut source = retry_metadata_connection(state, connection_id, Some(database), || {
+    let source = retry_metadata_connection(state, connection_id, Some(database), || {
         get_object_source_once(
             state,
             connection_id,
@@ -7817,10 +7850,17 @@ pub async fn get_object_source_core(
         )
     })
     .await?;
+    Ok(finalize_object_source(source))
+}
+
+fn finalize_object_source(mut source: db::ObjectSource) -> db::ObjectSource {
     if matches!(source.object_type, db::ObjectSourceKind::Procedure | db::ObjectSourceKind::Function) {
         source.source = normalize_routine_object_source(source.source);
     }
-    Ok(source)
+    if matches!(source.object_type, db::ObjectSourceKind::Event) {
+        source.editable = Some(false);
+    }
+    source
 }
 
 async fn get_object_source_once(

crates/dbx-core/src/transfer.rs

@@ -7468,9 +7468,10 @@ where
             | db::ObjectSourceKind::Synonym
             | db::ObjectSourceKind::Package
             | db::ObjectSourceKind::PackageBody => object.source.clone(),
-            db::ObjectSourceKind::Trigger | db::ObjectSourceKind::Type | db::ObjectSourceKind::TypeBody => {
-                object.source.clone()
-            }
+            db::ObjectSourceKind::Trigger
+            | db::ObjectSourceKind::Event
+            | db::ObjectSourceKind::Type
+            | db::ObjectSourceKind::TypeBody => object.source.clone(),
         };
         let statements = build_executable_object_source_statements(EditableObjectSourceSqlInput {
             database_type: DatabaseType::Postgres,

crates/dbx-core/src/types.rs

@@ -122,6 +122,7 @@ pub enum ObjectSourceKind {
     Procedure,
     Function,
     Trigger,
+    Event,
     Sequence,
     Synonym,
     Package,