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List:       postgresql-general
Subject:    [GENERAL] serious bug in "alter table tbname rename to newname"
From:       jim () reptiles ! org (Jim Mercer)
Date:       1999-04-29 14:51:07
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============================================================================
                        POSTGRESQL BUG REPORT TEMPLATE
============================================================================


Your name               : Jim Mercer
Your email address      : jim@reptiles.org

Category                : runtime: back-end
Severity                : critical

Summary: alter table tabname rename to newname does not rename extra files

System Configuration
--------------------
  Operating System   : FreeBSD 2.x/3.x

  PostgreSQL version : 6.4 and 6.4.2

  Compiler used      : gcc

Hardware:
---------
Pentium 128M ram
FreeBSD bigbird.nag.ca 3.0-RELEASE FreeBSD 3.0-RELEASE #1: Tue Feb  2 22:50:41 EST \
1999     root@bigbird.nag.ca:/usr/src/sys/compile/BIGBIRD  i386


Versions of other tools:
------------------------


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Problem Description:
--------------------
when a table exceeds 2gb, it appears that postgres will create subfiles for the data.
when you rename a table, the sub files do no get renamed.
see backend/commands/rename.c [renamerel()]

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Test Case:
----------
create a table in excess of 2gig, which in turn creates subfiles
in data/base/tabname.
rename the table.
the subfiles are not renamed.


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Solution:
---------
possible solution is to check if the table has subfiles, look for those subfiles and \
rename them as well.


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-- 
[ Jim Mercer    Reptilian Research      jim@reptiles.org   +1 416 410-5633 ]
[ The telephone, for those of you who  have forgotten, was a commonly used ]
[ communications technology in the days before electronic mail.            ]
[ They're still easy to find in most large cities. -- Nathaniel Borenstein ]


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