From: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
---|---|
To: | PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | patch: to_string, to_array functions |
Date: | 2010-05-05 18:42:01 |
Message-ID: | w2w162867791005051142y9c923802jc1d1a42f126338a9@mail.gmail.com |
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Lists: | pgsql-hackers |
Hello
attached patch contains to_string and to_array functions. These
functions are equivalent of array_to_string and string_to_array
function with maybe more correct NULL handling.
postgres=# select to_array('1,2,3,4,,6',',');
to_array
------------------
{1,2,3,4,NULL,6}
(1 row)
postgres=# select to_array('1,2,3,4,,6',',','***');
to_array
----------------
{1,2,3,4,"",6}
(1 row)
postgres=# select to_string(array[1,2,3,4,NULL,6],',');
to_string
------------
1,2,3,4,,6
(1 row)
postgres=# select to_string(array[1,2,3,4,NULL,6],',','***');
to_string
---------------
1,2,3,4,***,6
(1 row)
Regards
Pavel Stehule
Attachment | Content-Type | Size |
---|---|---|
to_array.diff | application/octet-stream | 15.3 KB |
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