Lianhui Wang 5ad68ba5ce [SPARK-15752][SQL] Optimize metadata only query that has an aggregate whose children are deterministic project or filter operators. ... ## What changes were proposed in this pull request? when query only use metadata (example: partition key), it can return results based on metadata without scanning files. Hive did it in HIVE-1003. ## How was this patch tested? add unit tests Author: Lianhui Wang <lianhuiwang09@gmail.com> Author: Wenchen Fan <wenchen@databricks.com> Author: Lianhui Wang <lianhuiwang@users.noreply.github.com> Closes #13494 from lianhuiwang/metadata-only.		2016-07-12 18:52:15 +02:00
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java/org/apache/spark/sql	[SPARK-9876][SQL][FOLLOWUP] Enable string and binary tests for Parquet predicate pushdown and replace deprecated fromByteArray.	2016-07-05 16:59:40 +08:00
resources	[SPARK-16031] Add debug-only socket source in Structured Streaming	2016-06-19 21:27:04 -07:00
scala/org/apache/spark/sql	[SPARK-15752][SQL] Optimize metadata only query that has an aggregate whose children are deterministic project or filter operators.	2016-07-12 18:52:15 +02:00