ajantha-bhat opened a new pull request #3861:
URL: https://github.com/apache/carbondata/pull/3861
### Why is this PR needed?
a) Limit pushdown for SI is already supported. But when order by column is
not SI column, Still we were pushing down limit. Need to fix it.
b) when Limit is present and order by column and all the filter column is SI
column. we can pushdown order by + limit.
This can reduce SI output results and reduce the scan time in main table.
### What changes were proposed in this PR?
a) Block limit push down if order by column is not an SI column
b) when Limit is present and order by column and all the filter column is
SI column, pushdown order by + limit
### Does this PR introduce any user interface change?
- No
### Is any new testcase added?
- Yes
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