bytebase/bytebase · error

failed to extract resource list

Error message

failed to extract resource list

What it means

exportSQLWithContext extracts the resource list (table/schema references) from the exported statement using the SQL parser and metadata lookup helpers before rendering INSERT statements; a failure is wrapped with this message. The statement's referenced resources could not be resolved against database metadata.

Source

Thrown at backend/api/v1/sql_service.go:1242

	stores *store.Store,
	instance *store.InstanceMessage,
	database *store.DatabaseMessage,
	result *v1pb.QueryResult,
	request *v1pb.ExportRequest,
) error {
	resourceList, err := export.GetResources(
		ctx,
		stores,
		instance.Metadata.GetEngine(),
		database.DatabaseName,
		request.Statement,
		instance,
		parsercontext.BuildGetDatabaseMetadataFunc(stores),
		parsercontext.BuildListDatabaseNamesFunc(stores),
		parsercontext.BuildGetLinkedDatabaseMetadataFunc(stores, instance.Metadata.GetEngine()),
	)
	if err != nil {
		return errors.Wrapf(err, "failed to extract resource list")
	}
	statementPrefix, err := export.SQLStatementPrefix(instance.Metadata.GetEngine(), resourceList, result.ColumnNames)
	if err != nil {
		return err
	}
	return export.SQLToWriter(w, instance.Metadata.GetEngine(), statementPrefix, result)
}

func (s *SQLService) createQueryHistory(instance *store.InstanceMessage, database *store.DatabaseMessage, queryType store.QueryHistoryType, statement string, userEmail string, duration time.Duration, queryErr error) {
	qh := &store.QueryHistoryMessage{
		Creator:   userEmail,
		Project:   database.ProjectID,
		Database:  formatDatabaseResourceName(instance, database),
		Statement: statement,
		Type:      queryType,
		Payload: &storepb.QueryHistoryPayload{
			Error:    nil,
			Duration: durationpb.New(duration),

View on GitHub (pinned to 1870550677)

Solutions

  1. Read the wrapped inner error to see if it's a parse error or metadata lookup failure
  2. Refresh database metadata (sync schema) so referenced tables can be resolved
  3. Verify linked database metadata exists if the statement uses cross-database references
  4. Retry; transient store errors during metadata lookup can also surface here
Defensive patterns

Strategy: retry

Validate before calling

// ensure metadata is synced
await databaseService.syncDatabaseSchema({ database: dbName })

Try / catch

try { await client.export({...req, format: 'SQL'}) } catch (e) { if (e.message.includes('failed to extract resource list')) { /* re-sync metadata then retry */ } throw e }

Prevention

When it happens

Trigger: The parser or metadata provider (BuildGetDatabaseMetadataFunc / BuildListDatabaseNamesFunc / BuildGetLinkedDatabaseMetadataFunc) fails — e.g. metadata store errors, unparseable statement, or missing linked database metadata.

Common situations: Exporting SQL for statements referencing objects missing from metadata cache, linked-database (foreign) metadata unavailable for the engine, or parser not supporting the dialect syntax in the statement.

Understand the failure class

Background: Database query failed: Internal Server Error 500s wrapping SQL, Prisma, and connection failures — what to check first — this error's family across 16 libraries.

Related errors


AI-assisted analysis of bytebase/bytebase@1870550677 (2026-09-06). Data as JSON: /api/errors/db1a2a833d8d3388. Report an issue: GitHub.