[HIVE-14843] HIVE-14751 introduced ambiguity in grammar

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.2.0
• Component/s: Parser
• Assignee: Jesús Camacho Rodríguez
• Reporter: Pengcheng Xiong
• Created: 27/Sep/16 05:34
• Updated: 27/Feb/24 22:23
• Resolved: 28/Sep/16 07:26

Description

As reported by ekoifman and tested by myself, your patch introduced ambiguity into the grammar.

warning(200): IdentifiersParser.g:327:5:
Decision can match input such as "KW_DAY KW_TO KW_SECOND" using multiple alternatives: 2, 5

As a result, alternative(s) 5 were disabled for that input
warning(200): IdentifiersParser.g:327:5:
Decision can match input such as "KW_YEAR KW_TO KW_MONTH" using multiple alternatives: 1, 3

As a result, alternative(s) 3 were disabled for that input

Could you please take another look? Thanks.

Issue Links

• is broken by: HIVE-14751 Add support for date truncation