Fixed #24920 -- Added support for DecimalField with no precision.

Thanks Lily for the review.

1 files changed, 7 insertions, 1 deletions

diff --git a/django/db/backends/postgresql/base.py b/django/db/backends/postgresql/base.py
index e2728afea5..42b37ab3c2 100644
--- a/django/db/backends/postgresql/base.py
+++ b/django/db/backends/postgresql/base.py
@@ -89,6 +89,12 @@ def _get_varchar_column(data):
     return "varchar(%(max_length)s)" % data
 
 
+def _get_decimal_column(data):
+    if data["max_digits"] is None and data["decimal_places"] is None:
+        return "numeric"
+    return "numeric(%(max_digits)s, %(decimal_places)s)" % data
+
+
 class DatabaseWrapper(BaseDatabaseWrapper):
     vendor = "postgresql"
     display_name = "PostgreSQL"
@@ -105,7 +111,7 @@ class DatabaseWrapper(BaseDatabaseWrapper):
         "CharField": _get_varchar_column,
         "DateField": "date",
         "DateTimeField": "timestamp with time zone",
-        "DecimalField": "numeric(%(max_digits)s, %(decimal_places)s)",
+        "DecimalField": _get_decimal_column,
         "DurationField": "interval",
         "FileField": "varchar(%(max_length)s)",
         "FilePathField": "varchar(%(max_length)s)",