From 1ad8cbf15b073a6668360d9a775055fa0d6538ac Mon Sep 17 00:00:00 2001
From: Vikram Rangnekar <vicram@gmail.com>
Date: Tue, 17 Mar 2020 23:03:41 -0400
Subject: [PATCH] Fix minor parser bug

---
 psql/query.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/psql/query.go b/psql/query.go
index e8bc735..1a3734a 100644
--- a/psql/query.go
+++ b/psql/query.go
@@ -93,7 +93,7 @@ func (co *Compiler) compileQuery(qc *qcode.QCode, w io.Writer, vars Variables) (
 	io.WriteString(c.w, `SELECT json_build_object(`)
 	for _, id := range qc.Roots {
 		root := &qc.Selects[id]
-		if root.SkipRender {
+		if root.SkipRender || len(root.Cols) == 0 {
 			continue
 		}
 
@@ -126,6 +126,10 @@ func (co *Compiler) compileQuery(qc *qcode.QCode, w io.Writer, vars Variables) (
 		if id < closeBlock {
 			sel := &c.s[id]
 
+			if len(sel.Cols) == 0 {
+				continue
+			}
+
 			ti, err := c.schema.GetTable(sel.Name)
 			if err != nil {
 				return 0, err