Method parseSubquery

pkg/sql/parser/expressions_literal.go:396–413

parseSubquery parses a subquery (SELECT or WITH statement). Expects current token to be SELECT or WITH.

()

// parseSubquery parses a subquery (SELECT or WITH statement).
// Expects current token to be SELECT or WITH.
func (p *Parser) parseSubquery() (ast.Statement, error) {
	if p.isType(models.TokenTypeWith) {
		// WITH statement handles its own token consumption
		return p.parseWithStatement()
	}

	if p.isType(models.TokenTypeSelect) {
		p.advance() // Consume SELECT
		return p.parseSelectWithSetOperations()
	}

	return nil, goerrors.ExpectedTokenError(
		"SELECT or WITH",
		p.currentToken.Token.Type.String(),
		p.currentLocation(),
		"",
	)
}