add support for lambda functions to the generic dialect

Author: lovasoa

src/dialect/generic.rs

@@ -199,4 +199,8 @@ impl Dialect for GenericDialect {
     fn supports_quote_delimited_string(&self) -> bool {
         true
     }
+
+    fn supports_lambda_functions(&self) -> bool {
+        true
+    }
 }

tests/sqlparser_duckdb.rs

@@ -875,17 +875,17 @@ fn parse_extract_single_quotes() {
 fn test_duckdb_lambda_function() {
     // Test basic lambda with list_filter
     let sql = "SELECT [3, 4, 5, 6].list_filter(lambda x : x > 4)";
-    duckdb().verified_stmt(sql);
+    duckdb_and_generic().verified_stmt(sql);
 
     // Test lambda with arrow syntax (also supported by DuckDB)
     let sql_arrow = "SELECT list_filter([1, 2, 3], x -> x > 1)";
-    duckdb().verified_stmt(sql_arrow);
+    duckdb_and_generic().verified_stmt(sql_arrow);
 
     // Test lambda with multiple parameters (with index)
     let sql_multi = "SELECT list_filter([1, 3, 1, 5], lambda x, i : x > i)";
-    duckdb().verified_stmt(sql_multi);
+    duckdb_and_generic().verified_stmt(sql_multi);
 
     // Test lambda in list_transform
     let sql_transform = "SELECT list_transform([1, 2, 3], lambda x : x * 2)";
-    duckdb().verified_stmt(sql_transform);
+    duckdb_and_generic().verified_stmt(sql_transform);
 }