Function columnMatches

pkg/transform/columns.go:114–127

columnMatches checks if a column expression matches the given name.

(expr ast.Expression, name string)

// columnMatches checks if a column expression matches the given name.
func columnMatches(expr ast.Expression, name string) bool {
	lower := strings.ToLower(name)
	switch e := expr.(type) {
	case *ast.Identifier:
		return strings.ToLower(e.Name) == lower
	case *ast.AliasedExpression:
		if strings.ToLower(e.Alias) == lower {
			return true
		}
		return columnMatches(e.Expr, name)
	default:
		return false
	}
}