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Commit 752e90f1 authored by Yash Datta's avatar Yash Datta Committed by Michael Armbrust
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[SPARK-3711][SQL] Optimize where in clause filter queries

The In case class is replaced by a InSet class in case all the filters are literals, which uses a hashset instead of Sequence, thereby giving significant performance improvement (earlier the seq was using a worst case linear match (exists method) since expressions were assumed in the filter list) . Maximum improvement should be visible in case small percentage of large data matches the filter list.

Author: Yash Datta <Yash.Datta@guavus.com>

Closes #2561 from saucam/branch-1.1 and squashes the following commits:

4bf2d19 [Yash Datta] SPARK-3711: 1. Fix code style and import order             2. Fix optimization condition             3. Add tests for null in filter list             4. Add test case that optimization is not triggered in case of attributes in filter list
afedbcd [Yash Datta] SPARK-3711: 1. Add test cases for InSet class in ExpressionEvaluationSuite             2. Add class OptimizedInSuite on the lines of ConstantFoldingSuite, for the optimized In clause
0fc902f [Yash Datta] SPARK-3711: UnaryMinus will be handled by constantFolding
bd84c67 [Yash Datta] SPARK-3711: Incorporate review comments. Move optimization of In clause to Optimizer.scala by adding a rule. Add appropriate comments
430f5d1 [Yash Datta] SPARK-3711: Optimize the filter list in case of negative values as well
bee98aa [Yash Datta] SPARK-3711: Optimize where in clause filter queries
parent b77a02f4
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