tree 3f97f9fe974dc90b4ebe6349e477be1962bbe5a4
parent cf0b05cc79590049c5a3470369516e71da1424be
author Yingyi Bu <yingyi@couchbase.com> 1466722022 -0700
committer Till Westmann <tillw@apache.org> 1466763989 -0700

Reduce object creation in Unnest.

If an Unnest is run in a Subplan operator, open/close need to be
called many times.

Change-Id: I5b2d1f281dca0655c212aad328fb737d5fec9c71
Reviewed-on: https://asterix-gerrit.ics.uci.edu/957
Reviewed-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Till Westmann <tillw@apache.org>