[HIVE-2057] eliminate parser warning for "Identifier DOT Identifier"

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: Diagnosability, Query Processor
• Assignee: Unassigned
• Reporter: John Sichi
• Created: 15/Mar/11 21:47
• Updated: 18/Nov/11 19:47

Description

I noticed this warning in recent builds:

build-grammar:
     [echo] Building Grammar /data/users/jsichi/open/hive-trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/Hive.g  ....
     [java] ANTLR Parser Generator  Version 3.0.1 (August 13, 2007)  1989-2007
     [java] warning(200): /data/users/jsichi/open/hive-trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/Hive.g:1503:5: Decision can match input such as "Identifier DOT Identifier" using multiple alternatives: 1, 2
     [java] As a result, alternative(s) 2 were disabled for that input

This was introduced by HIVE-1517. Is there a way to get rid of it?