1 files changed, 8 insertions, 0 deletions
diff --git a/lib/sqlalchemy/dialects/postgresql/hstore.py b/lib/sqlalchemy/dialects/postgresql/hstore.py
index 2ade4b7c1..77220a33a 100644
--- a/lib/sqlalchemy/dialects/postgresql/hstore.py
+++ b/lib/sqlalchemy/dialects/postgresql/hstore.py
@@ -273,41 +273,49 @@ class hstore(sqlfunc.GenericFunction):
 
     type = HSTORE
     name = "hstore"
+    inherit_cache = True
 
 
 class _HStoreDefinedFunction(sqlfunc.GenericFunction):
     type = sqltypes.Boolean
     name = "defined"
+    inherit_cache = True
 
 
 class _HStoreDeleteFunction(sqlfunc.GenericFunction):
     type = HSTORE
     name = "delete"
+    inherit_cache = True
 
 
 class _HStoreSliceFunction(sqlfunc.GenericFunction):
     type = HSTORE
     name = "slice"
+    inherit_cache = True
 
 
 class _HStoreKeysFunction(sqlfunc.GenericFunction):
     type = ARRAY(sqltypes.Text)
     name = "akeys"
+    inherit_cache = True
 
 
 class _HStoreValsFunction(sqlfunc.GenericFunction):
     type = ARRAY(sqltypes.Text)
     name = "avals"
+    inherit_cache = True
 
 
 class _HStoreArrayFunction(sqlfunc.GenericFunction):
     type = ARRAY(sqltypes.Text)
     name = "hstore_to_array"
+    inherit_cache = True
 
 
 class _HStoreMatrixFunction(sqlfunc.GenericFunction):
     type = ARRAY(sqltypes.Text)
     name = "hstore_to_matrix"
+    inherit_cache = True
 
 
 #