tree 272a05f06f52b49068ba410286e0df71588cf440
parent 7c7ce10f563dd23af8079d836dda17b77a9a2729
author Xikui Wang <xkkwww@gmail.com> 1528267216 -0700
committer Steven Jacobs <sjaco002@ucr.edu> 1528395215 -0700

[ASTERIXDB-2394][COMP] Align VarCounter in query rewritting

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

Details:
Currently, before we do certain language rewritings, we take a snapshot
of the var counter in the context and pass it to the rewriter. This
works fine in most of the cases, but it can fail when the rewriter
introduces new variables. This will cause different variables map to the
same variable id. Although this error may be fixed by another
ScopingVisitor, the compiler could fail if there is no more visitor down
in the rewriting workflow.

Change-Id: I8ea1ee7de140d6556af03f07a5ec7bc278b011ba
Reviewed-on: https://asterix-gerrit.ics.uci.edu/2673
Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Contrib: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Dmitry Lychagin <dmitry.lychagin@couchbase.com>