Samuel Yuan created HIVE-4067: --------------------------------- Summary: Followup to HIVE-701: reduce ambiguity in grammar Key: HIVE-4067 URL: https://issues.apache.org/jira/browse/HIVE-4067 Project: Hive Issue Type: Bug Components: Query Processor Reporter: Samuel Yuan Assignee: Samuel Yuan Priority: Minor
After HIVE-701 the grammar has become much more ambiguous, and the compilation generates a large number of warnings. Making FROM, DISTINCT, PRESERVE, COLUMN, ALL, AND, OR, and NOT reserved keywords again reduces the number of warnings to 134, up from the original 81 warnings but down from the 565 after HIVE-701. Most of the remaining ambiguity is trivial, an example being "KW_ELEM_TYPE | KW_KEY_TYPE | KW_VALUE_TYPE | identifier", and they are all correctly handled by ANTLR. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira