[patch] Allow period in data item names

Author: pkohlmann

iotfunctions/dbhelper.py

@@ -17,7 +17,7 @@
 
 logger = logging.getLogger(__name__)
 SQL_PATTERN = re.compile('\w*')
-SQL_PATTERN_EXTENDED = re.compile('[\w-]*')
+SQL_PATTERN_EXTENDED = re.compile('[\w\-.]*')
 SQL_PATTERN_EXTENDED2 = re.compile('^[\w\-.][\w\-.\;\,\/\s?]*')
 
 # PostgreSQL Queries