From 1b77c2294afad8f3d6fadf68ed8c211c6b6fb226 Mon Sep 17 00:00:00 2001
From: Tim Nyborg <tim.nyborg@gmail.com>
Date: Mon, 30 Nov 2015 16:09:53 +0000
Subject: [PATCH] Fix grid count when using groupby on MSSQL

Any query like SELECT COUNT(*) from (SELECT COUNT(*) FROM ...) will fail with 'No column name was specified for column 1 of '_tmp'', so I'm providing an alias for the subquery's field
---
 gluon/sqlhtml.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gluon/sqlhtml.py b/gluon/sqlhtml.py
index 9008536e..aa14511f 100644
--- a/gluon/sqlhtml.py
+++ b/gluon/sqlhtml.py
@@ -2079,7 +2079,7 @@ class SQLFORM(FORM):
             ## if it's not an integer
             if cache_count is None or isinstance(cache_count, tuple):
                 if groupby:
-                    c = 'count(*)'
+                    c = 'count(*) AS count_all'
                     nrows = db.executesql(
                         'select count(*) from (%s) _tmp;' %
                         dbset._select(c, left=left, cacheable=True,