Re: [BUGS] General Bug Report: regexp beginning of line doesn't work properly

>
> ============================================================================
>                         POSTGRESQL BUG REPORT TEMPLATE
> ============================================================================
>
>
> Your name        : Petr Hubeny
> Your email address    : psh@seznam.cz
>
> Category        : runtime: back-end
> Severity        : serious
>
> Summary: regexp beginning of line doesn't work properly
>
> System Configuration
> --------------------
>   Operating System   : Linux 2.2.1 ELF
>
>   PostgreSQL version : 6.4.2
>
>   Compiler used      : gcc 2.7.2.3
>
> Hardware:
> ---------
> PII-300MHz, 64M RAM
> Linux agatha 2.2.1pcsp #6 �t �nor 2 16:17:30 CET 1999 i686 unknown
>
> Versions of other tools:
> ------------------------
> GNU Make version 3.76.1
> flex version 2.5.4
> GNU Bison version 1.25
>
>
> --------------------------------------------------------------------------
>
> Problem Description:
> --------------------
> "select...where a ~ '^A'" doesn't return anything,
> while "select...where a ~ '^[A]'" does. Also LIKE is
> affected.
>
>
> --------------------------------------------------------------------------
>
> Test Case:
> ----------
> create table test (a text);
> insert into test values ('ABC');
> insert into test values ('DEF');
> select * from test where a ~ '^A'; -- NOTHING!!!, Query 1
> select * from test where a ~ '^[A]'; -- ABC, Query 2
> select * from test where a LIKE 'A%'; -- NOTHING
> select * from test where a LIKE '%A%'; -- ABC
> select * from test where a LIKE '%F'; -- DEF
>
>
> --------------------------------------------------------------------------
>
> Solution:
> ---------
> Well, I suspect the parser and I tried to dig through
> the code, and this is how far I was able to get:
>
> with query 1 is function transformStmt()
> erroneously called with
>
> ((A_Expr*)((SelectStmt*)parseTree)->whereClause)->oper == 263
>
> with query 2 is
>
> ((A_Expr*)((SelectStmt*)parseTree)->whereClause)->oper == 465
>
> Hope it helps,

Works here fine.  I have no idea what the cause could be.  Very strange.

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