fix(cache): avoid quoted identifiers and alias lists for cache sql

Closes #8340

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

@@ -555,7 +555,17 @@ pub fn build_table_select_sql(options: TableSelectSqlOptions<'_>) -> String {
             options
                 .order_columns
                 .iter()
-                .map(|column| format!("{} ASC", quote_table_identifier(database_type, column)))
+                .map(|column| {
+                    let quoted = if database_type == Some(DatabaseType::Iris) {
+                        // Caché/IRIS may run with delimited identifiers disabled,
+                        // where a quoted ORDER BY name becomes a string literal and
+                        // silently degrades to a constant sort.
+                        quote_iris_identifier(column, None)
+                    } else {
+                        quote_table_identifier(database_type, column)
+                    };
+                    format!("{quoted} ASC")
+                })
                 .collect::<Vec<_>>()
                 .join(", ")
         )
@@ -605,7 +615,20 @@ fn quoted_table_columns_or_star(database_type: Option<DatabaseType>, columns: &[
     if columns.is_empty() {
         return "*".to_string();
     }
-    columns.iter().map(|column| quote_table_identifier(database_type, column)).collect::<Vec<_>>().join(", ")
+    columns
+        .iter()
+        .map(|column| {
+            if database_type == Some(DatabaseType::Iris) {
+                // With delimited identifiers disabled, the Caché/IRIS JDBC
+                // preparser turns a quoted column name into a `:%qpar` host
+                // variable, so ordinary names must stay unquoted.
+                quote_iris_identifier(column, None)
+            } else {
+                quote_table_identifier(database_type, column)
+            }
+        })
+        .collect::<Vec<_>>()
+        .join(", ")
 }
 
 fn build_rownum_table_select_sql(

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

@@ -339,6 +339,33 @@ fn builds_select_sql_with_limit_syntax_for_database_type() {
         }),
         "SELECT TOP 100 * FROM Ens.AlarmResponse"
     );
+    // Caché 2016 often runs with delimited identifiers disabled: the JDBC
+    // preparser turns a quoted column into a `:%qpar` host variable and a
+    // quoted ORDER BY name into a string literal (constant sort), so ordinary
+    // column names must stay unquoted (#8340).
+    assert_eq!(
+        build_table_select_sql(TableSelectSqlOptions {
+            database_type: Some(DatabaseType::Iris),
+            schema: Some("SQLUser"),
+            table_name: "CT_Country",
+            columns: &columns,
+            order_columns: &keys,
+            limit: 200,
+        }),
+        "SELECT TOP 200 id, name FROM SQLUser.CT_Country ORDER BY id ASC"
+    );
+    // Non-Iris dialects keep their own quoting for the same input.
+    assert_eq!(
+        build_table_select_sql(TableSelectSqlOptions {
+            database_type: Some(DatabaseType::Mysql),
+            schema: None,
+            table_name: "users",
+            columns: &columns,
+            order_columns: &keys,
+            limit: 100,
+        }),
+        "SELECT `id`, `name` FROM `users` ORDER BY `id` ASC LIMIT 100;"
+    );
     assert_eq!(
         build_table_select_sql(TableSelectSqlOptions {
             database_type: Some(DatabaseType::Iotdb),