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  1. Couchbase Server
  2. MB-52161

[BP to 7.0.4,7.1.1] - adhoc query index selection issue with LIKE as index condition and query parameters

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 6.6.2, 7.0.0, 6.6.3, Morpheus, 7.1.0, 7.0.3, 7.0.2, 7.0.1, 6.6.5, 6.6.4, 7.1.1, 7.0.4
    • 7.1.1, 7.0.4
    • query
    • Untriaged
    • 1
    • Yes

    Description

       

      create index ix2 on default(c1) WHERE type LIKE "airport%";
      		 
      \set -$type "airport%";
      		 
      EXPLAIN SELECT 1 FROM default WHERE c1 = 10 AND type LIKE $type;

       

       

      Above adhoc query does n't choose the index. 

      Following works.

       

      EXPLAIN SELECT 1 FROM default WHERE c1 = 10 AND type LIKE "airport%";

       

       DNF transformation might not happened LIKE before index selection.

      Attachments

        Issue Links

          is a backport of

          Bug - A problem which impairs or prevents the functions of the product. MB-52090 adhoc query index selection issue with LIKE as index condition and query parameters

          • Major - Major loss of function.
          • Resolved
          is caused by

          Bug - A problem which impairs or prevents the functions of the product. MB-33009 N1QL plans different while using Named Parameters with Array Indexes

          • Major - Major loss of function.
          • Closed
          For Gerrit Dashboard: MB-52161
          # Subject Branch Project Status CR V
          174866,3 MB-52161 Compare with original index condition for index eligibility cheshire-cat query Status: MERGED +2 +1
          174885,2 MB-52161 Compare with original index condition for index eligibility neo query Status: MERGED +2 +1

          Activity

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            build-team Couchbase Build Team added a comment -

            Build couchbase-server-7.1.1-3063 contains query commit b2ed5c7 with commit message:
            MB-52161 Compare with original index condition for index eligibility

            build-team Couchbase Build Team added a comment - Build couchbase-server-7.1.1-3063 contains query commit b2ed5c7 with commit message: MB-52161 Compare with original index condition for index eligibility
            build-team Couchbase Build Team added a comment -

            Build couchbase-server-7.0.4-7274 contains query commit 93e3bc9 with commit message:
            MB-52161 Compare with original index condition for index eligibility

            build-team Couchbase Build Team added a comment - Build couchbase-server-7.0.4-7274 contains query commit 93e3bc9 with commit message: MB-52161 Compare with original index condition for index eligibility
            ajay.bhullar Ajay Bhullar added a comment -

            verified in 7.0.4-7275, also regression is running cleanly.

            ajay.bhullar Ajay Bhullar added a comment - verified in 7.0.4-7275, also regression is running cleanly.
            ajay.bhullar Ajay Bhullar added a comment -

            verified in 7.1.1-3063

            ajay.bhullar Ajay Bhullar added a comment - verified in 7.1.1-3063

            People

              ajay.bhullar Ajay Bhullar
              bingjie.miao Bingjie Miao
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              Dates

                Created:
                Updated:
                Resolved:

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