hailong wang created FLINK-15556:
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Summary: Add a switch for PushProjectIntoTableSourceScanRule
Key: FLINK-15556
URL: https://issues.apache.org/jira/browse/FLINK-15556
Project: Flink
Issue Type: Improvement
Components: Table SQL / Planner
Affects Versions: 1.10.0
Reporter: hailong wang
Fix For: 1.11.0
In some case, For the project push down, The digest of tableSource maybe
different. For example, If we create a jdbc tablesource, and is used twice
after it for different column, the source can not be reused for the different
digest. In this case, the query io will more precious, So we can add a switch
to turn off project push down, and the reused the source.
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