There is a doubt of fatal bug on PostgreSQL 8.0.4.

There is a doubt of fatal bug on PostgreSQL 8.0.4.

I found this problem when I developed a system 3 days ago.
I examine some version.
It has no problem on version 8.0.3 and on 8.1.0.
It occured only on 8.0.4 and 2 byte character.

Our development environment is
Server OS: Red Hat Enterprise Linux ES 3
DB : PostgreSQL 8.0.4
both encodes are EUC_JP

This is a test order.

1. Create the table for test.
CREATE TABLE TEST (
    ID    VARCHAR(1)
   ,NAME  VARCHAR(40)
   ,PRIMARY KEY (ID)
)

2. Make some records on the table.
INSERT INTO TEST VALUES ('1', '$B$"$"$"(B');
INSERT INTO TEST VALUES ('2', '$B$$$$$$(B');
INSERT INTO TEST VALUES ('3', '$B$"(B');

* Please make at least two records of the same number of characters and two
byte character.

3. Query this table by name.
SELECT * FROM TEST
WHERE NAME = '$B$"$"$"(B'

The results are '$B$"$"$"(B' and '$B$$$$$$(B'.
It should be only '$B$"$"$"(B'.

When you also query "WHERE NAME = '$B$&$&$&(B'", it'll reply the same result.
It should be no result.

Please examine and fix it.
I'm waiting for the version 8.0.5. Or I'll change version 8.1.0.

Sincerely.

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