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Date: Fri, 2 Sep 2016 10:18:53 -0700
From: "Wenhai Li (Code Review)" <do-not-reply@asterixdb.incubator.apache.org>
CC: Jenkins <jenkins@fulliautomatix.ics.uci.edu>,
	Yingyi Bu <buyingyi@gmail.com>, Yingyi Bu <yingyib@google.com>,
	Taewoo Kim <wangsaeu@yahoo.com>, Chen Li <chenli@gmail.com>,
	Jianfeng Jia <jianfeng.jia@gmail.com>,
	Till Westmann <tillw@apache.org>
Reply-To: lwhaymail@yahoo.com
Subject: Change in asterixdb[master]: ASTERIX-1487: fix the wrong plan for inverted fuzzyjoin.
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archived-at: Fri, 02 Sep 2016 17:18:58 -0000

Wenhai Li has posted comments on this change.

Change subject: ASTERIX-1487: fix the wrong plan for inverted fuzzyjoin.
......................................................................


Patch Set 8:

@Chen
It's a quite strange query, the high-level comments towards the example is like:
1. We setup a fuzzy join over A.a ~= B.b based on a word index over A.a
2. We want to aggregate on B's fields.
If we switch the consequence of A and B in the two "FOR" lines, we get inconsistent result. The RemoveUnusedOneToOneEuquiJoinRule remove the branch of A after "pseudo" broadcase B to A for enabling "SELECT" instead of fuzzy join. But that is wrong.

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Gerrit-MessageType: comment
Gerrit-Change-Id: I1aef69a2278853fd9f8020da6639331b367ed5ad
Gerrit-PatchSet: 8
Gerrit-Project: asterixdb
Gerrit-Branch: master
Gerrit-Owner: Wenhai Li <lwhaymail@yahoo.com>
Gerrit-Reviewer: Chen Li <chenli@gmail.com>
Gerrit-Reviewer: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Gerrit-Reviewer: Jianfeng Jia <jianfeng.jia@gmail.com>
Gerrit-Reviewer: Taewoo Kim <wangsaeu@yahoo.com>
Gerrit-Reviewer: Till Westmann <tillw@apache.org>
Gerrit-Reviewer: Wenhai Li <lwhaymail@yahoo.com>
Gerrit-Reviewer: Yingyi Bu <buyingyi@gmail.com>
Gerrit-Reviewer: Yingyi Bu <yingyib@google.com>
Gerrit-HasComments: No