jackc/pgx · error

invalid array: %w

Error message

invalid array: %w

What it means

Error "invalid array: %w" thrown in jackc/pgx.

Source

Thrown at pgtype/array.go:111

	Elements   []string
	Quoted     []bool
	Dimensions []ArrayDimension
}

func parseUntypedTextArray(src string) (*untypedTextArray, error) {
	dst := &untypedTextArray{
		Elements:   []string{},
		Quoted:     []bool{},
		Dimensions: []ArrayDimension{},
	}

	buf := bytes.NewBufferString(src)

	skipWhitespace(buf)

	r, _, err := buf.ReadRune()
	if err != nil {
		return nil, fmt.Errorf("invalid array: %w", err)
	}

	var explicitDimensions []ArrayDimension

	// Array has explicit dimensions
	if r == '[' {
		buf.UnreadRune()

		for {
			r, _, err = buf.ReadRune()
			if err != nil {
				return nil, fmt.Errorf("invalid array: %w", err)
			}

			if r == '=' {
				break
			} else if r != '[' {
				return nil, fmt.Errorf("invalid array, expected '[' or '=' got %v", r)

View on GitHub (pinned to ec1a0befd2)

When it happens

Trigger: Thrown at pgtype/array.go:111 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of jackc/pgx@ec1a0befd2 (2026-08-04). Data as JSON: /data/errors/4ac3dca18effffed.json. Report an issue: GitHub.