stock cache: avoid possibly random errors

ProgrammingError could be raised for various raisons, while the code
was assuming that the only raison was missing table. Improve by making
sure the error is about missing table, if not, raise.

product/ERP5/Tool/SimulationTool.py

@@ -52,6 +52,7 @@ from Shared.DC.ZRDB.Results import Results
 from Products.ERP5Type.Utils import mergeZRDBResults
 from App.Extensions import getBrain
 from MySQLdb import ProgrammingError
+from MySQLdb.constants.ER import NO_SUCH_TABLE
 
 from hashlib import md5
 from warnings import warn
@@ -1404,7 +1405,9 @@ class SimulationTool(BaseTool):
         inventory_cache_kw['date'] = to_date
       try:
           cached_sql_result = Resource_zGetInventoryCacheResult(**inventory_cache_kw)
-      except ProgrammingError:
+      except ProgrammingError, (code, _):
+          if code != NO_SUCH_TABLE:
+            raise
           # First use of the optimisation, we need to create the table
           LOG("SimulationTool._getCachedInventoryList", INFO,
               "Creating inventory cache stock")