Make the world at least somewhat safe for zero-column tables, and

remove the special case in ALTER DROP COLUMN to prohibit dropping a
table's last column.

1 files changed, 2 insertions, 4 deletions

diff --git a/src/test/regress/expected/alter_table.out b/src/test/regress/expected/alter_table.out
index de2e4a2975..f604c1c0dd 100644
--- a/src/test/regress/expected/alter_table.out
+++ b/src/test/regress/expected/alter_table.out
@@ -939,11 +939,9 @@ drop table test2;
 alter table atacc1 drop c;
 alter table atacc1 drop d;
 alter table atacc1 drop b;
-ERROR:  ALTER TABLE: Cannot drop last column from table "atacc1"
 select * from atacc1;
- b  
-----
- 21
+  
+--
 (1 row)
 
 drop table atacc1;