[SPARK-27016] Treat all antlr warnings as errors while generating parser from the sql grammar file.

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.0
• Fix Version/s: 3.0.0
• Component/s: SQL
• Assignee: Dilip Biswal
• Reporter: Dilip Biswal
• Created: 28/Feb/19 21:13
• Updated: 12/Mar/19 04:57
• Resolved: 03/Mar/19 16:04

Description

Use the maven plugin option `treatWarningsAsErrors` to make sure the warnings are treated as errors while generating the parser file. In the absence of it, we may inadvertently introducing problems while making grammar changes. 

Issue Links

• links to: GitHub Pull Request #23925
• links to: GitHub Pull Request #24060