tree 862d0158a15fd0a97cdfef3f76bd0a92bca723ce
parent 4eaaff59f6ff53bd6a4adbe0127b7127cbbdd7d4
author Dmitry Lychagin <dmitry.lychagin@couchbase.com> 1557350048 -0700
committer Dmitry Lychagin <dmitry.lychagin@couchbase.com> 1557439299 +0000

[NO ISSUE][COMP] Reduce memory requirements for metadata only queries

- user model changes: no
- storage format changes: no
- interface changes: no

Details:
- Queries over metadata datasets should run with minimal memory requirements
- Introduce AsterixOptimizationContext which extends AlgebricksOptimizationContext
  and contains information required by Asterix optimizer rules
- Implement equals()/hashCode() for DataSourceId
- Add "plans" testcase type

Change-Id: I0d8902f88f61953e839e2fa0b06a77c324edbc57
Reviewed-on: https://asterix-gerrit.ics.uci.edu/3385
Contrib: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Ali Alsuliman <ali.al.solaiman@gmail.com>
Reviewed-by: Till Westmann <tillw@apache.org>