From 005866dc4cff8d9d01096d7041a0f935d5212136 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20P=C3=A9ters?= <fpeters@entrouvert.com>
Date: Fri, 4 Mar 2016 15:48:04 +0100
Subject: [PATCH] sql: don't use 'IF NOT EXISTS' when creating materialized
 view (#9553)

(it requires postgresql 9.5)
---
 wcs/sql.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/wcs/sql.py b/wcs/sql.py
index 2634e12..1411d89 100644
--- a/wcs/sql.py
+++ b/wcs/sql.py
@@ -1632,8 +1632,12 @@ class AnyFormData(SqlMixin):
 def create_materialized_view_if_not_exists(conn, cur):
     if get_publisher().pg_version < 94000:
         return
-    cur.execute('''CREATE MATERIALIZED VIEW IF NOT EXISTS wcs_materialized_all_forms
+    try:
+        cur.execute('''CREATE MATERIALIZED VIEW wcs_materialized_all_forms
                        AS SELECT * from wcs_all_forms''')
+        conn.commit()
+    except psycopg2.ProgrammingError:
+        conn.rollback()
 
 @guard_postgres
 def refresh_materialized_views():
-- 
2.7.0