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Regression in 3.0: trace reports UPDATES in statistics when doing INSERT into <some_table> [CORE4515] #4833

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firebird-issue-importer opened this issue Aug 11, 2014 · 7 comments

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@firebird-issue-importer

Submitted by: @pavel-zotov

Attachments:
trace-screen-in-FB_3.0-when-INSERT-into-T-select-from-MON$.zip

SQL> recreate table mon_log(att_id int); commit;
SQL> insert into mon_log(att_id) select mon$attachment_id from mon$attachments where mon$attachment_id=current_connection;

Trace in LI-V2.5.3.26788:

Table Natural Index Update Insert
************************************************************************
MON_LOG 1

(one INSERT, and, of course, this is OK).

Trace in LI-T3.0.0.31280:

2014-08-11T16:02:14.8900 (30759:0x7f3a50761c18) EXECUTE_STATEMENT_FINISH
oltp30b (ATT_21, SYSDBA:NONE, NONE, TCPv4:192.168.43.96)
C:\MIX\firebird\fb25\bin\isql.exe:3856
(TRA_142, CONCURRENCY | WAIT | READ_WRITE)

Statement 121:
-------------------------------------------------------------------------------
insert into mon_log(att_id) select mon$attachment_id from mon$attachments where mon$attachment_id=current_connection
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
PLAN (MON$ATTACHMENTS NATURAL)
0 records fetched
0 ms, 11 fetch(es), 4 mark(s)

Table Natural Index Update Insert Delete Backout Purge Expunge
***************************************************************************************************************
MON_LOG 1

Why it reports one UPDATE in statistics ?

@firebird-issue-importer
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firebird-issue-importer commented Aug 11, 2014

Commented by: @pavel-zotov

PS. Unfortunatelly, I could not show statistics in proper format like FIXED. Please see screenshot in attach.

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firebird-issue-importer commented Aug 11, 2014

Modified by: @pavel-zotov

Attachment: trace-screen-in-FB_3.0-when-INSERT-into-T-select-from-MON$.zip [ 12570 ]

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firebird-issue-importer commented Aug 11, 2014

Modified by: @dyemanov

assignee: Dmitry Yemanov [ dimitr ]

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firebird-issue-importer commented Aug 11, 2014

Modified by: @dyemanov

Component: Engine [ 10000 ]

summary: Regression in 3.0: trace reports UPDATES in statistics when doing INSERT into <some_table> select . . . from MON$xxx => Regression in 3.0: trace reports UPDATES in statistics when doing INSERT into <some_table>

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firebird-issue-importer commented Aug 11, 2014

Modified by: @dyemanov

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

resolution: Fixed [ 1 ]

Fix Version: 3.0 Beta 1 [ 10332 ]

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firebird-issue-importer commented Jun 2, 2015

Modified by: @pavel-zotov

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

QA Status: Cannot be tested

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firebird-issue-importer commented Sep 23, 2015

Modified by: @pcisar

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

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