[CARBONDATA-278] IS NULL and IS NOT NULL shall be push down to carbon #202
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… layer since carbon layer can process these filters faster using block/block-let pruning , also while processing filters in executors carbon is applying binary search for applying filter values.
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Please find the PR builder status |
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@sujith71955 can you add testcase also? |
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@jacky Existing testcases can verify the impact of this PR change since its not new usecase/scenario. |
This was referenced May 27, 2017
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update grafana dashboards
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Current design : As per the current design IS NULL and IS NOT NULL filter is been handled by spark layer
Drawback : Block/Blocklet level pruning will not be possible if the filter is been processed by spark layer
Proposed Improvement: IS NULL and IS NOT NULL shall be push down to carbon layer since carbon layer can process these filters faster using block/block-let pruning , also while processing filters in executers carbon is applying binary search for applying filter values.
UT/FT Testcases : Existing testcases can verify the impact of this PR change since its not new usecase/scenario.