Function nodeSubqueryOrExists

server/ast/subquery.go:51–62

nodeSubqueryOrExists handles *tree.Subquery nodes that may be an EXISTS subquery, returning a vitess.Expr.

(ctx *Context, node *tree.Subquery)

// nodeSubqueryOrExists handles *tree.Subquery nodes that may be an EXISTS subquery, returning a vitess.Expr.
func nodeSubqueryOrExists(ctx *Context, node *tree.Subquery) (vitess.Expr, error) {
	subquery, err := nodeSubquery(ctx, node)
	if err != nil {
		return nil, err
	}
	if !node.Exists {
		return subquery, nil
	}
	return &vitess.ExistsExpr{
		Subquery: subquery,
	}, nil
}