From 37cde8667e837e4e766a6654595a131b837c7eca Mon Sep 17 00:00:00 2001
From: Florian Apolloner <florian@apolloner.eu>
Date: Fri, 18 Mar 2016 23:06:43 +0100
Subject: [PATCH] Pass type to sql_alter_column*.
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This helps databases which need the database type when changing the default
(Just like MySQL needs it for changing null…)
---
 django/db/backends/base/schema.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/django/db/backends/base/schema.py b/django/db/backends/base/schema.py
index a9d84e114d..3e23cae0f2 100644
--- a/django/db/backends/base/schema.py
+++ b/django/db/backends/base/schema.py
@@ -577,6 +577,7 @@ class BaseDatabaseSchemaEditor(object):
                 actions.append((
                     self.sql_alter_column_default % {
                         "column": self.quote_name(new_field.column),
+                        "type": new_type,
                         "default": self.prepare_default(new_default),
                     },
                     [],
@@ -585,6 +586,7 @@ class BaseDatabaseSchemaEditor(object):
                 actions.append((
                     self.sql_alter_column_default % {
                         "column": self.quote_name(new_field.column),
+                        "type": new_type,
                         "default": "%s",
                     },
                     [new_default],
@@ -738,6 +740,7 @@ class BaseDatabaseSchemaEditor(object):
                 "table": self.quote_name(model._meta.db_table),
                 "changes": self.sql_alter_column_no_default % {
                     "column": self.quote_name(new_field.column),
+                    "type": new_type,
                 }
             }
             self.execute(sql)