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Currently, constant expressions for the LHS of the IN predicate are not supported. This patch adds this support as a rewrite in StmtRewriter (where subqueries are rewritten to joins). Since there is a nested-loop variant of left semijoin, support for IN is handled by not erring out. NOT IN is handled by a rewrite to corresponding NOT EXISTS predicate. Support for NOT IN with a correlated subquery is not included in this change. Re-organized the frontend subquery analysis tests to expand coverage. Testing: - added frontend subquery analysis tests - added e2e tests Change-Id: I0d69889a3c72e90be9d4ccf47d2816819ae32acb Reviewed-on: http://gerrit.cloudera.org:8080/8322 Reviewed-by: Alex Behm <alex.behm@cloudera.com> Tested-by: Impala Public Jenkins
This directory contains Impala test workloads. The directory layout for the workloads should follow: workloads/ <data set name>/<data set name>_dimensions.csv <- The test dimension file <data set name>/<data set name>_core.csv <- A test vector file <data set name>/<data set name>_pairwise.csv <data set name>/<data set name>_exhaustive.csv <data set name>/queries/<query test>.test <- The queries for this workload