On 1/10/2012 9:17 AM, David Johnston wrote:
-----Original Message-----
From: pgsql-general-owner@xxxxxxxxxxxxxx
[mailto:pgsql-general-owner@xxxxxxxxxxxxxx] On Behalf Of Andy Colson
Sent: Tuesday, January 10, 2012 10:04 AM
To: PostgreSQL
Subject: string = any()
Hi all.
I am writing PHP where it prepares a statement like:
$sql = 'select * from aTable where id = any($1)';
then in php I create a string:
$args = "{1,2,3}";
And run it:
$q = pg_query_params($db, $sql, $args);
This is not actual code, just a sample. And it works great for integers. I
cannot get it to work with strings.
Just running this in psql does not work either:
select 'bob' = any( '{''joe'', ''bob'' }' )
But this does:
select 'bob' = any( array['joe', 'bob'] )
But I can't seem to prepare and execute:
$sql = "select 'bob' = any( $1 )";
$args = "array['joe', 'bob']";
$q = pg_query_params($db, $sql, $args);
Running on 9.0.4 on Slackware 64.
Any hits would be appreciated.
-Andy
------------------------------------------------------------------------
Explicit casting is required otherwise the system simply treats you input as
a simple scalar varchar.
" SELECT 'bob' = ANY( $1::varchar[] ) ... "
You can also pass in a delimited string and perform a "split_to_array($1,
',')" - didn't check exact syntax but you get the idea
David J.
Well, so close.
This still does not work, even in psql:
select 'bob' = any( '{''joe'', ''bob'' }'::varchar[] )
I cannot get a prepared version, or a php version to work either.
But this works in psql!
select 'bob' = any( string_to_array('joe,bob', ',') )
But not in php :-(
I still get errors:
Query failed: ERROR: array value must start with "{" or dimension
information
Its the same as if I try to prepare it in psql:
clayia=# prepare x as select 'bob' = any($1::varchar[]);
PREPARE
Time: 1.884 ms
clayia=# execute x( 'string_to_array(''joe,bob'', '','')' );
ERROR: array value must start with "{" or dimension information
LINE 1: execute x( 'string_to_array(''joe,bob'', '','')' );
-Andy
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