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ORDER BY clause on compound index may disable usage of other indices [CORE5795] #6058

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firebird-issue-importer opened this issue Apr 17, 2018 · 8 comments

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@firebird-issue-importer

Submitted by: @livius2

Relate to CORE5965
Is duplicated by CORE5845

Attachments:
TESTPLAN.7z

This is releated to old CORE5020 but now i have reproductible test case with sample database

restore attached database backup
run the query

SELECT
W.DYR_ID
, W.INSP_ID
, W.KONTO_ID
, W.WPLATA_DATA_WYCIAGU
, W.WPLATA_KONTRAHENT_ID
FROM
WPLATA W
WHERE
W.WPLATA_KONTRAHENT_ID IN (136804)
AND W.DYR_ID = 9
ORDER BY
W.DYR_ID
, W.INSP_ID
, W.KONTO_ID
, W.WPLATA_DATA_WYCIAGU
, W.WPLATA_NR_WYCIAGU
, W.WPLATA_NR_POZYCJI

-------------------------------------------------
PLAN (W ORDER WPLATA_PK)

Executing statement...
Statement executed (elapsed time: 0.000s).
679228 fetches, 0 marks, 0 reads, 0 writes.
0 inserts, 0 updates, 0 deletes, 334971 index, 0 seq.
Delta memory: 248896 bytes.
Total execution time: 0.500s
Script execution finished.

------------------------------------------------
plan should be
PLAN (W INDEX (IXA_WPLATA__KONTRAHENT__PK))

Executing statement...
Statement executed (elapsed time: 0.000s).
19 fetches, 0 marks, 0 reads, 0 writes.
0 inserts, 0 updates, 0 deletes, 6 index, 0 seq.
Delta memory: 58112 bytes.
Total execution time: 0.063s
Script execution finished.

or
-----------------------------------------------
PLAN (W ORDER WPLATA_PK INDEX (IXA_WPLATA__KONTRAHENT__PK))

Executing statement...
Statement executed (elapsed time: 0.000s).
185 fetches, 0 marks, 0 reads, 0 writes.
0 inserts, 0 updates, 0 deletes, 9 index, 0 seq.
Delta memory: 59264 bytes.
Total execution time: 0.047s
Script execution finished.

Commits: 077a2a3 3103f72

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@firebird-issue-importer firebird-issue-importer commented Apr 17, 2018

Modified by: @livius2

Attachment: TESTPLAN.7z [ 13237 ]

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@firebird-issue-importer firebird-issue-importer commented Apr 17, 2018

Modified by: @livius2

environment: WI-V3.0.4.32951 Firebird 3.0

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@firebird-issue-importer firebird-issue-importer commented Apr 17, 2018

Modified by: @dyemanov

assignee: Dmitry Yemanov [ dimitr ]

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@firebird-issue-importer firebird-issue-importer commented Nov 20, 2018

Modified by: @dyemanov

Link: This issue relate to CORE5965 [ CORE5965 ]

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@firebird-issue-importer firebird-issue-importer commented Nov 20, 2018

Modified by: @dyemanov

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Fixed [ 1 ]

Fix Version: 4.0 Beta 1 [ 10750 ]

Fix Version: 3.0.5 [ 10885 ]

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@firebird-issue-importer firebird-issue-importer commented Dec 9, 2018

Modified by: @pavel-zotov

status: Resolved [ 5 ] => Resolved [ 5 ]

QA Status: No test => Covered by another test(s)

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@firebird-issue-importer firebird-issue-importer commented Dec 9, 2018

Modified by: @pavel-zotov

status: Resolved [ 5 ] => Closed [ 6 ]

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@firebird-issue-importer firebird-issue-importer commented Dec 31, 2019

Modified by: @dyemanov

Link: This issue is duplicated by CORE5845 [ CORE5845 ]

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