Revert "ZSQLCatalog: fail loudly searching for dict iterators ( TODO: make this the default ? )"

This reverts commit cd3833b2.

product/ZSQLCatalog/Operator/OperatorBase.py

@@ -33,7 +33,6 @@ from zLOG import LOG
 from DateTime import DateTime
 from Products.ZSQLCatalog.interfaces.operator import IOperator
 from Products.ZSQLCatalog.Utils import sqlquote as escapeString
-from AccessControl.ZopeGuards import SafeIter
 from zope.interface.verify import verifyClass
 from zope.interface import implementer
 
@@ -52,9 +51,6 @@ def valueDefaultRenderer(value):
 def valueNoneRenderer(value):
   return 'NULL'
 
-def valueUnsupportedRenderer(value):
-  raise TypeError("ZSQCatalog does not support %s (%s)" % (type(value), value))
-
 value_renderer = {
   int: str,
   float: valueFloatRenderer,
@@ -62,10 +58,6 @@ value_renderer = {
   None.__class__: valueNoneRenderer,
   bool: int,
   str: escapeString,
-  SafeIter: valueUnsupportedRenderer,
-  type(six.iterkeys({})): valueUnsupportedRenderer,
-  type(six.iteritems({})): valueUnsupportedRenderer,
-  type(six.itervalues({})): valueUnsupportedRenderer,
 }
 if six.PY2:
   value_renderer[long] = str