From: | Unprivileged user <nobody> |
---|---|
To: | pgsql-ports(at)postgresql(dot)org |
Subject: | Port Bug Report: pqReadData() -- backend closed the channel unexpectedly |
Date: | 1999-04-20 17:18:57 |
Message-ID: | 199904201718.NAA63901@hub.org |
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Thread: | |
Lists: | pgsql-ports |
============================================================================
POSTGRESQL BUG REPORT TEMPLATE
============================================================================
Your name : Stoyan Genov
Your email address : genov(at)digsys(dot)bg
Category : runtime: back-end
Severity : critical
Summary: pqReadData() -- backend closed the channel unexpectedly
System Configuration
--------------------
Operating System : i386-pc-bsdi4.0
PostgreSQL version : 6.4.2
Compiler used :
Hardware:
---------
uname -a == lorna lorna 3.2 2 i386
CPU == K6/2 300 MHz
RAM == 64 MB
Versions of other tools:
------------------------
gcc2.ver == 2.7.2.1
lex.ver == 2.5.4
--------------------------------------------------------------------------
Problem Description:
--------------------
The backend terminates abnormally when a query is executed
from the psql monitor and there is a comparison between
a scalar int4 variable and an element of _int4 array and
the array element is on the right side of the comparison
operator.
--------------------------------------------------------------------------
Test Case:
----------
shell-prompt> createdb tmp
shell-prompt> psql tmp
tmp=> create table tbl1 ( i int4, j int4 );
tmp=> create table tbl2 ( iarr int4[], jarr int4[]);
tmp=> insert into tbl1 values ( 1, 3 );
tmp=> insert into tbl1 values ( 2, 4 );
tmp=> insert into tbl1 values ( 5, 6 );
tmp=> insert into tbl2 values ( '{1, 2}', '{3, 4}' );
tmp=> insert into tbl2 values ( '{5, 6, 7}', '{8, 9}' );
tmp=> select 1 where tbl2.iarr[1] = 1;
?column?
--------
1
tmp=> select 1 where tbl2.iarr[1] = tbl1.i;
?column?
--------
1
1
tmp=> select 1 where tbl1.i = tbl2.iarr[1];
pqReadData() -- backend closed the channel unexpectedly.
..... Terminating.
shell-prompt> pg_dump tmp > tmp.sql
shell-prompt> destroydb tmp
shell-prompt> createdb tmp
shell-prompt> psql tmp < tmp.sql
shell-prompt> psql tmp
tmp=> select 1 where tbl1.i = tbl2.iarr[2];
pqReadData() -- backend closed the channel unexpectedly.
..... Terminating.
shell-prompt> psql tmp
tmp=> delete from tbl1;
tmp=> delete from tbl2;
tmp=> select 1 where tbl1.i = tbl2.iarr[1];
?column?
--------
( 0 rows)
--- end of example ---
--------------------------------------------------------------------------
Solution:
---------
--------------------------------------------------------------------------
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