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Native inlined sql functions module #2
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            Native inlined sql functions module #2
                    kevintang2022
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  6
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  kevintang2022:master
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pdabre12:native-inlined-sql-functions-module
  
      
      
   
              
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    …esto-spark code in presto-native-execution module
…tercept functions (prestodb#25475) (prestodb#25748) Summary: ## Context Currently we don't enforce intermediate/return type are the same in Coordinator and Prestissimo Worker. Velox creates vectors for intermediate/return results based on a plan that comes from Coordinator. Then Prestissimo tries to use those vector and not crash. In practise we had a crash some time ago due to such a mismatch (D74199165). And I added validation to Velox to catch such kind of mismatches early: facebookincubator/velox#13322 But we wasn't able to enable it in prod, because the validation failed for "regr_slope" and "regr_intercept" functions. ## What's changed? In this diff I'm fixing "regr_slope" and "regr_intercept" intermediate types. Basically in Java `AggregationState` for all these functions is the same: ``` AggregationFunction("regr_slope") AggregationFunction("regr_intercept") AggregationFunction("regr_sxy") AggregationFunction("regr_sxx") AggregationFunction("regr_syy") AggregationFunction("regr_r2") AggregationFunction("regr_count") AggregationFunction("regr_avgy") AggregationFunction("regr_avgx") ``` But in Prestissimo the state storage is more optimal: ``` AggregationFunction("regr_slope") AggregationFunction("regr_intercept") ``` These 2 aggregation functions don't have M2Y field. And this is more efficient, because we don't waste memory and CPU on the field, that aren't needed. So I moved M2Y to extended class, the same as it works in Velox: https://github.com/facebookincubator/velox/blob/main/velox/functions/prestosql/aggregates/CovarianceAggregates.cpp?fbclid=IwY2xjawLRTetleHRuA2FlbQIxMQBicmlkETFiT0N3UFR0M2VKOHl6MHRhAR6KRQ1VUQdCkZXzwj14sMQrVZ-R9QBH1utuGJb5U_lyGzDwt8PwV317QRVNJg_aem_-ePxZ-fHO5MNgfUmayVJFA#L326-L337 No major changes, mostly just reorganized the code. ## Test plan I tested `REGR_SLOPE`, `REGR_INTERCEPT` and `REGR_R2` functions since they are heavily used in prod and cover both cases: with and without M2Y field. What my test looked like. For all 3 `REGR_*` functions I found some prod queries, then: 1. Ran them on prev Java build 2. Ran them on new (with this PR) Java build 3. Ran them on prev Prestissimo build 4. Ran them on new (with this PR) Prestissimo build And compared the output results. They all were identical. With this manual test we covered `Coordinator -> Java Worker` and `Coordinator -> Prestissimo Worker` integrations. ## Next steps In this diff I'm trying to apply the same optimization to Java. With this fix, the signatures will become the same in Java and Prestissimo and we will be able to enable the validation Differential Revision: D77625566 == NO RELEASE NOTES ==
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    …ecar enabled clusters Adds a new plugin : presto-native-sql-invoked-functions-plugin that contains all inlined SQL functions except those with overridden native implementations. This plugin is intended to be loaded only in sidecar enabled clusters.
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