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Jinfeng Ni commented on DRILL-4997: ----------------------------------- My bad. I must click the button twice when I opened the JIRA, since the connection was not responding quickly enough. > Perform parquet filter pushdown in logical planning. > ----------------------------------------------------- > > Key: DRILL-4997 > URL: https://issues.apache.org/jira/browse/DRILL-4997 > Project: Apache Drill > Issue Type: Bug > Components: Query Planning & Optimization > Reporter: Jinfeng Ni > > DRILL-1950 put parquet filter pushdown rule in physical planning phase, after > all join order related tasks have been done. Main reason for doing this is > we want to reduce the performance regression possibility caused by a > different join order, as a result of reduced row count in scan operator. > Ideally this should be done in logical planning, before join order planning > is done. Before we can make such change, we have to figure out how to adjust > the selectivity estimation of filter operator, after filter is pushed down to > scan. > -- This message was sent by Atlassian JIRA (v6.3.4#6332)