Sameer Agarwal 77ba3021c1 [SPARK-13869][SQL] Remove redundant conditions while combining filters ... ## What changes were proposed in this pull request? **[I'll link it to the JIRA once ASF JIRA is back online]** This PR modifies the existing `CombineFilters` rule to remove redundant conditions while combining individual filter predicates. For instance, queries of the form `table.where('a === 1 && 'b === 1).where('a === 1 && 'c === 1)` will now be optimized to ` table.where('a === 1 && 'b === 1 && 'c === 1)` (instead of ` table.where('a === 1 && 'a === 1 && 'b === 1 && 'c === 1)`) ## How was this patch tested? Unit test in `FilterPushdownSuite` Author: Sameer Agarwal <sameer@databricks.com> Closes #11670 from sameeragarwal/combine-filters.		2016-03-16 16:27:46 -07:00
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src	[SPARK-13869][SQL] Remove redundant conditions while combining filters	2016-03-16 16:27:46 -07:00
pom.xml	[SPARK-11565] Replace deprecated DigestUtils.shaHex call	2016-02-10 09:52:35 +00:00