fix(gbase8s): restore server name and table queries

Closes #5573

crates/dbx-core/src/sql_dialect/table_select.rs

@@ -21,6 +21,13 @@ pub fn build_count_table_sql(database_type: Option<DatabaseType>, schema: Option
 
 pub fn build_table_data_select_sql(options: TableDataSelectSqlOptions) -> String {
     let database_type = options.database_type;
+    let schema = if database_type == Some(DatabaseType::Informix)
+        && options.driver_profile.as_deref().is_some_and(|profile| profile.eq_ignore_ascii_case("gbase8s"))
+    {
+        None
+    } else {
+        options.schema.as_deref()
+    };
     let limit = options.limit.unwrap_or(100);
     if database_type == Some(DatabaseType::Neo4j) {
         return build_neo4j_table_select_sql(&options, limit);
@@ -31,17 +38,12 @@ pub fn build_table_data_select_sql(options: TableDataSelectSqlOptions) -> String
 
     // Doris / StarRocks multi-catalog: prefix the catalog for external-catalog tables.
     let table = if uses_connection_identifier_quote(database_type, options.identifier_quote.as_deref()) {
-        table_data_qualified_table_name(
-            database_type,
-            options.schema.as_deref(),
-            &options.table_name,
-            options.identifier_quote.as_deref(),
-        )
+        table_data_qualified_table_name(database_type, schema, &options.table_name, options.identifier_quote.as_deref())
     } else {
         qualified_table_name_with_catalog(
             database_type,
             options.catalog.as_deref(),
-            options.schema.as_deref(),
+            schema,
             options.database.as_deref(),
             &options.table_name,
         )
@@ -502,6 +504,7 @@ mod tests {
     ) -> TableDataSelectSqlOptions {
         TableDataSelectSqlOptions {
             database_type: Some(database_type),
+            driver_profile: None,
             identifier_quote: None,
             schema: None,
             table_name: table.to_string(),

crates/dbx-core/src/sql_dialect/tests.rs

@@ -370,6 +370,18 @@ fn builds_table_data_where_and_schema_queries() {
         }),
         "SELECT * FROM \"App Schema\".\"ANALYZE\" LIMIT 100;"
     );
+    assert_eq!(
+        build_table_data_select_sql(TableDataSelectSqlOptions {
+            database_type: Some(DatabaseType::Informix),
+            driver_profile: Some("gbase8s".to_string()),
+            identifier_quote: Some(String::new()),
+            schema: Some("gbasedbt".to_string()),
+            table_name: "connection_smoke".to_string(),
+            limit: Some(100),
+            ..Default::default()
+        }),
+        "SELECT FIRST 100 * FROM connection_smoke"
+    );
     assert_eq!(
         build_table_data_select_sql(TableDataSelectSqlOptions {
             database_type: Some(DatabaseType::Informix),

crates/dbx-core/src/sql_dialect/types.rs

@@ -22,6 +22,8 @@ pub struct TableDataSelectSqlOptions {
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub database_type: Option<DatabaseType>,
     #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub driver_profile: Option<String>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
     pub identifier_quote: Option<String>,
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub schema: Option<String>,