[HIVE-23997] Some logs in ConstantPropagateProcFactory are not straightforward

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 4.0.0-alpha-1
• Component/s: Logical Optimizer
• Labels: pull-request-available
• Assignee: Zhihua Deng
• Reporter: Zhihua Deng
• Created: 05/Aug/20 12:14
• Updated: 27/Feb/24 22:23
• Resolved: 11/Aug/20 01:03

Description

Some logs in ConstantPropagateProcFactory are not easy to understand,  like query:
 select * from tbl where a = 'a1';
showing some logs like this:
optimizer.ConstantPropagateProcFactory: Filter org.apache.hadoop.hive.ql.udf.generic.GenericUDFOPEqual@78907a46 is identified as a value assignment, propagate it.
 
Maybe It's better to log like this:
optimizer.ConstantPropagateProcFactory: Filter (a = 'a1') is identified as a value assignment, propagate it.

Issue Links

• links to: GitHub Pull Request #1364