[HIVE-20463] Hplsql.g4 - 'from_clause' parses the keyword `JOIN` into 'from_alias_clause' in 'from_table_clause' when parsing 'from_join_clause'

• Type: Bug
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.1.0
• Fix Version/s: 3.1.0
• Component/s: CLI
• Labels: pull-request-available
• Target Version/s: 3.1.0
• Assignee: Hao Zhou Assign to me
• Reporter: Hao Zhou
• Created: 25/Aug/18 18:56
• Updated: 03/Sep/18 05:35

Description

'from_clause' parses the keyword `JOIN` into 'from_alias_clause' in 'from_table_clause' when parsing 'from_join_clause'.

 

example:

Parse sql SELECT `k1, v1, k2, v2 FROM a JOIN b ON k1 = k2;`.

Now grammar will parse `JOIN` as a `from_alias_clause`, but it should be
a `from_join_clause`;

 

 

Issue Links

• links to: GitHub Pull Request #422