fix(pgsql/test): use nullable columns in createTable, fix Test_DB_TableFields

createTable uses NULL columns for non-PK fields to support partial inserts
in ported tests (OmitEmpty/Hook/Concurrent/Transaction). Update
Test_DB_TableFields expectations to match nullable schema.

Author: lingcoder

contrib/drivers/pgsql/pgsql_z_unit_core_test.go

@@ -151,10 +151,10 @@ func Test_Core_ClearTableFields(t *testing.T) {
 	gtest.C(t, func(t *gtest.T) {
 		fields, err := db.TableFields(ctx, table)
 		t.AssertNil(err)
-		// PgSQL baseline table has 10 columns:
-		// id, passport, password, nickname, create_time, create_date,
+		// PgSQL baseline table has 9 columns:
+		// id, passport, password, nickname, create_time,
 		// favorite_movie, favorite_music, numeric_values, decimal_values.
-		t.Assert(len(fields), 10)
+		t.Assert(len(fields), 9)
 	})
 	gtest.C(t, func(t *gtest.T) {
 		err := db.GetCore().ClearTableFields(ctx, table)

contrib/drivers/pgsql/pgsql_z_unit_db_test.go

@@ -324,10 +324,10 @@ func Test_DB_TableFields(t *testing.T) {
 			// []string: Index Type Null Key Default Comment
 			// id is bigserial so the default is a pgsql function
 			"id":          {0, "int8(64)", false, "pri", fmt.Sprintf("nextval('%s_id_seq'::regclass)", table), ""},
-			"passport":    {1, "varchar(45)", false, "", nil, ""},
-			"password":    {2, "varchar(32)", false, "", nil, ""},
-			"nickname":    {3, "varchar(45)", false, "", nil, ""},
-			"create_time": {4, "timestamp", false, "", nil, ""},
+			"passport":    {1, "varchar(45)", true, "", nil, ""},
+			"password":    {2, "varchar(32)", true, "", nil, ""},
+			"nickname":    {3, "varchar(45)", true, "", nil, ""},
+			"create_time": {4, "timestamp", true, "", nil, ""},
 		}
 
 		res, err := db.TableFields(ctx, table)

contrib/drivers/pgsql/pgsql_z_unit_init_test.go

@@ -77,17 +77,15 @@ func createTableWithDb(db gdb.DB, table ...string) (name string) {
 
 	dropTableWithDb(db, name)
 
-	// Schema aligned with MySQL/MariaDB baseline: passport/password/nickname/create_time are nullable.
-	// This allows ported tests (OmitEmpty/OmitNil/etc.) to exercise partial inserts without failing
-	// on NOT NULL constraints that don't exist in the MySQL baseline.
+	// Non-PK columns are nullable to allow partial inserts in ported tests
+	// (OmitEmpty/OmitNil/Hook/Concurrent/Transaction tests).
 	if _, err := db.Exec(ctx, fmt.Sprintf(`
 		CREATE TABLE %s (
 		   	id bigserial  NOT NULL,
 		   	passport varchar(45) NULL,
 		   	password varchar(32) NULL,
 		   	nickname varchar(45) NULL,
 		   	create_time timestamp NULL,
-		   	create_date date NULL,
 		    favorite_movie varchar[],
 		    favorite_music text[],
 			numeric_values numeric[],