Function inputExpressionForSelectExpr

server/ast/select.go:173–180

inputExpressionForSelectExpr returns the input expression for a tree.SelectExpr. Postgres has specific handling for function calls that differs from the default printing behavior.

(node tree.SelectExpr)

// inputExpressionForSelectExpr returns the input expression for a tree.SelectExpr.
// Postgres has specific handling for function calls that differs from the default printing behavior.
func inputExpressionForSelectExpr(node tree.SelectExpr) string {
	inputExpression := tree.AsStringWithFlags(&node, tree.FmtOmitFunctionArgs)
	// To be consistent with vitess handling, InputExpression always gets its outer quotes trimmed
	if strings.HasPrefix(inputExpression, "'") && strings.HasSuffix(inputExpression, "'") {
		inputExpression = inputExpression[1 : len(inputExpression)-1]
	}
	return inputExpression
}

// nodeSelectExprs handles tree.SelectExprs nodes.
func nodeSelectExprs(ctx *Context, node tree.SelectExprs) (vitess.SelectExprs, error) {