googleapis/mcp-toolbox · error

errors encountered during row iteration: %w

Error message

errors encountered during row iteration: %w

What it means

Error "errors encountered during row iteration: %w" thrown in googleapis/mcp-toolbox.

Source

Thrown at internal/sources/mindsdb/mindsdb.go:159

		vMap := make(map[string]any)
		for i, name := range cols {
			val := rawValues[i]
			if val == nil {
				vMap[name] = nil
				continue
			}

			// MindsDB uses mysql driver
			vMap[name], err = mysqlcommon.ConvertToType(colTypes[i], val)
			if err != nil {
				return nil, fmt.Errorf("errors encountered when converting values: %w", err)
			}
		}
		out = append(out, vMap)
	}

	if err := results.Err(); err != nil {
		return nil, fmt.Errorf("errors encountered during row iteration: %w", err)
	}

	return out, nil
}

func initMindsDBConnectionPool(ctx context.Context, tracer trace.Tracer, name, host, port, user, pass, dbname, queryTimeout string) (*sql.DB, error) {
	//nolint:all // Reassigned ctx
	ctx, span := sources.InitConnectionSpan(ctx, tracer, SourceType, name)
	defer span.End()

	// Configure the driver to connect to the database
	var dsn string
	if pass == "" {
		// Connect without password
		dsn = fmt.Sprintf("%s@tcp(%s:%s)/%s?parseTime=true", user, host, port, dbname)
	} else {
		// Connect with password
		dsn = fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?parseTime=true", user, pass, host, port, dbname)

View on GitHub (pinned to 8cc6e09de2)

When it happens

Trigger: Thrown at internal/sources/mindsdb/mindsdb.go:159 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of googleapis/mcp-toolbox@8cc6e09de2 (2026-09-05). Data as JSON: /api/errors/671b7cf4f6062312. Report an issue: GitHub.