Jesus Camacho Rodriguez created HIVE-21293:
----------------------------------------------
Summary: Fix ambiguity in grammar warnings at compilation time (II)
Key: HIVE-21293
URL: https://issues.apache.org/jira/browse/HIVE-21293
Project: Hive
Issue Type: Bug
Components: Parser
Reporter: Jesus Camacho Rodriguez
Assignee: Jesus Camacho Rodriguez
These are the warnings at compilation time:
{code}
warning(200): org/apache/hadoop/hive/ql/parse/HiveParser.g:2439:5:
Decision can match input such as "KW_CHECK KW_DATETIME" using multiple
alternatives: 1, 2
As a result, alternative(s) 2 were disabled for that input
warning(200): org/apache/hadoop/hive/ql/parse/HiveParser.g:2439:5:
Decision can match input such as "KW_CHECK KW_DATE {LPAREN, StringLiteral}"
using multiple alternatives: 1, 2
As a result, alternative(s) 2 were disabled for that input
warning(200): org/apache/hadoop/hive/ql/parse/HiveParser.g:2439:5:
Decision can match input such as "KW_CHECK KW_UNIONTYPE LESSTHAN" using
multiple alternatives: 1, 2
As a result, alternative(s) 2 were disabled for that input
warning(200): org/apache/hadoop/hive/ql/parse/HiveParser.g:2439:5:
Decision can match input such as "KW_CHECK {KW_EXISTS, KW_TINYINT}" using
multiple alternatives: 1, 2
As a result, alternative(s) 2 were disabled for that input
warning(200): org/apache/hadoop/hive/ql/parse/HiveParser.g:2439:5:
Decision can match input such as "KW_CHECK KW_STRUCT LESSTHAN" using multiple
alternatives: 1, 2
As a result, alternative(s) 2 were disabled for that input
warning(200): IdentifiersParser.g:424:5:
Decision can match input such as "KW_UNKNOWN" using multiple alternatives: 1, 10
As a result, alternative(s) 10 were disabled for that input
{code}
This means that multiple parser rules can match certain query text, possibly
leading to unexpected errors at parsing time.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
