revert: remove search_path modification approach

Author: 7ttp

pkg/migration/apply.go

@@ -67,10 +67,6 @@ func ApplyMigrations(ctx context.Context, pending []string, conn *pgx.Conn, fsys
 		if _, err := conn.Exec(ctx, "RESET ALL"); err != nil {
 			return errors.Errorf("failed to reset connection state: %v", err)
 		}
-		// Ensure extensions schema is in search_path so extension types (e.g., ltree) are accessible
-		if _, err := conn.Exec(ctx, `SET search_path = "$user", public, extensions`); err != nil {
-			return errors.Errorf("failed to set search_path: %v", err)
-		}
 		if migration, err := NewMigrationFromFile(path, fsys); err != nil {
 			return err
 		} else if err := migration.ExecBatch(ctx, conn); err != nil {

pkg/migration/apply_test.go

@@ -110,8 +110,6 @@ func TestApplyMigrations(t *testing.T) {
 		mockMigrationHistory(conn).
 			Query("RESET ALL").
 			Reply("RESET").
-			Query(`SET search_path = "$user", public, extensions`).
-			Reply("SET").
 			Query(testSchema).
 			Reply("CREATE SCHEMA").
 			Query(INSERT_MIGRATION_VERSION, "0", "schema", []string{testSchema}).
@@ -149,9 +147,7 @@ func TestApplyMigrations(t *testing.T) {
 		defer conn.Close(t)
 		mockMigrationHistory(conn).
 			Query("RESET ALL").
-			Reply("RESET").
-			Query(`SET search_path = "$user", public, extensions`).
-			Reply("SET")
+			Reply("RESET")
 		// Run test
 		err := ApplyMigrations(context.Background(), pending, conn.MockClient(t), fsys)
 		// Check error
@@ -165,8 +161,6 @@ func TestApplyMigrations(t *testing.T) {
 		mockMigrationHistory(conn).
 			Query("RESET ALL").
 			Reply("RESET").
-			Query(`SET search_path = "$user", public, extensions`).
-			Reply("SET").
 			Query(testSchema).
 			ReplyError(pgerrcode.UndefinedTable, `relation "supabase_migrations.schema_migrations" does not exist`).
 			Query(INSERT_MIGRATION_VERSION, "0", "schema", []string{testSchema}).