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ca86e470de
This commit is the first step in improving the performance of partition pruning. Currently, Impala can prune approximately 10K partitions per sec, thereby introducing significant overhead for huge table with a large number of partitions. With this commit we reduce that overhead by 3X by batching the partition pruning calls to the backend. Change-Id: I3303bfc7fb6fe014790f58a5263adeea94d0fe7d Reviewed-on: http://gerrit.ent.cloudera.com:8080/2608 Reviewed-by: Dimitris Tsirogiannis <dtsirogiannis@cloudera.com> Tested-by: jenkins Reviewed-on: http://gerrit.ent.cloudera.com:8080/2687