>Description:
The following query results in a different # of rows if the sql_big_tables is
set to 1:
select count(incidents.ref_no) from incidents, labels where incidents.ref_no like
'020531%' group by labels.label, incidents.ref_no;
The query seems unusual because it was a lot more complicated but I broke it down for
better readability.
incidents.refno is [varchar(15) binary] eg '020531-000031'
labels.label is [blob] eg 'Pricing'
Note: The results are only different if there is a large # of results from the query
>How-To-Repeat:
create two tables with the above attributes and of large size. Then run the query
with sql_big_tables set to 1 and when it's not set.
>Fix:
Code fix?
>Submitter-Id: <submitter ID>
>Originator: RightNow Techmologies
>Organization:
RightNow Technologies
>MySQL support: [ extended email support ]
>Synopsis: sql_big_tables option changes results when set for some queries
>
>Severity:
>Priority:
>Category: mysql
>Class:
>Release: mysql-3.23.47 (Source distribution)
>Environment:
System: Linux dbsc01.rightnowtech.com 2.4.17 #2 SMP Fri Jan 4 17:47:51 EST 2002 i686
unknown
Architecture: i686
Some paths: /usr/bin/perl /usr/bin/make
Compilation info: CC='gcc' CFLAGS='-O3 -mpentiumpro' CXX='gcc' CXXFLAGS='-O3
-mpentiumpro -felide-constructors -fno-exceptions -fno-rtti' LDFLAGS=''
LIBC:
lrwxrwxrwx 1 root root 13 Oct 15 2000 /lib/libc.so.6 -> libc-2.1.3.so
-rwxr-xr-x 1 root root 4103980 Jul 31 2000 /lib/libc-2.1.3.so
Configure command: ./configure --prefix=/usr/local/pkg/mysql/mysql-3.23.47
--enable-assembler --with-mysql-ldflags=-all-static --disable-shared
--with-extra-charsets=complex
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