From 5d048eb95cdcca4e184e33369b16df5da4651ac7 Mon Sep 17 00:00:00 2001
From: Eugen Konkov <kes-kes@yandex.ru>
Date: Fri, 20 Oct 2017 17:20:05 +0300
Subject: [PATCH] Improve create_index

---
 lib/SQL/Translator/Producer/PostgreSQL.pm | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/SQL/Translator/Producer/PostgreSQL.pm b/lib/SQL/Translator/Producer/PostgreSQL.pm
index 455f745df..4ad954107 100644
--- a/lib/SQL/Translator/Producer/PostgreSQL.pm
+++ b/lib/SQL/Translator/Producer/PostgreSQL.pm
@@ -923,7 +923,13 @@ sub alter_create_index {
     my ($index, $options) = @_;
     my $generator = _generator($options);
     my ($idef, $constraints) = create_index($index, $options);
-    return $index->type eq NORMAL ? $idef
+
+    # Just like 90726ffd commit: don't run into output like this:
+    # ALTER TABLE users ADD ;
+    # create_index returns one of: index definition or constraint
+
+    # So define index or constraint
+    return $idef ? $idef
         : sprintf('ALTER TABLE %s ADD %s',
               $generator->quote($index->table->name),
               join(q{}, @$constraints)