diff --git a/product/ZSQLCatalog/ColumnMap.py b/product/ZSQLCatalog/ColumnMap.py
index 7b058a11e2c4727b418d7971923128f97587e423..7188f619e00c4117c7653ca21f07e849bcb4c93c 100644
--- a/product/ZSQLCatalog/ColumnMap.py
+++ b/product/ZSQLCatalog/ColumnMap.py
@@ -106,7 +106,6 @@ class ColumnMap(object):
     if '.' in column:
       # Assuming the part before the dot is a real table name, not an alias.
       table, column = column.split('.')
-      LOG('ColumnMap', 100, 'Column %r is pre-mapped. This use is strongly discouraged.' % (raw_column, ))
     else:
       table = None