From 37abb942e327281eaafc8c4502d670ea6f46cff3 Mon Sep 17 00:00:00 2001
From: Oliver Rice <github@oliverrice.com>
Date: Fri, 16 Jul 2021 06:53:01 -0500
Subject: [PATCH] do not populate materialized views with data during
 simulation

---
 src/alembic_utils/__init__.py | 2 +-
 src/alembic_utils/simulate.py | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/alembic_utils/__init__.py b/src/alembic_utils/__init__.py
index 49e0fc1..a5f830a 100644
--- a/src/alembic_utils/__init__.py
+++ b/src/alembic_utils/__init__.py
@@ -1 +1 @@
-__version__ = "0.7.0"
+__version__ = "0.7.1"
diff --git a/src/alembic_utils/simulate.py b/src/alembic_utils/simulate.py
index 610f212..906b117 100644
--- a/src/alembic_utils/simulate.py
+++ b/src/alembic_utils/simulate.py
@@ -1,4 +1,5 @@
 # pylint: disable=unused-argument,invalid-name,line-too-long
+import copy
 import logging
 from contextlib import ExitStack, contextmanager
 from typing import TYPE_CHECKING, List, Optional
@@ -21,6 +22,14 @@ def simulate_entity(
     """Creates *entiity* in a transaction so postgres rendered definition
     can be retrieved
     """
+
+    # When simulating materialized view, don't populate them with data
+    from alembic_utils.pg_materialized_view import PGMaterializedView
+
+    if isinstance(entity, PGMaterializedView) and entity.with_data:
+        entity = copy.deepcopy(entity)
+        entity.with_data = False
+
     deps: List["ReplaceableEntity"] = dependencies or []
 
     try: