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BUG #5831: Splitting string into char array with string_to_array does not work

From: "Splitting string into char array with string_to_array" <valgog(at)gmail(dot)com>
To: pgsql-bugs(at)postgresql(dot)org
Subject: BUG #5831: Splitting string into char array with string_to_array does not work
Date: 2011-01-11 15:44:48
Message-ID: 201101111544.p0BFimF1087272@wwwmaster.postgresql.org (view raw or flat)
Thread:
Lists: pgsql-bugs
The following bug has been logged online:

Bug reference:      5831
Logged by:          Splitting string into char array with string_to_array
Email address:      valgog(at)gmail(dot)com
PostgreSQL version: 9.0.1
Operating system:   Ubuntu/Linaro 4.4.4-14ubuntu5
Description:        Splitting string into char array with string_to_array
does not work
Details: 

Hi, 

I cannot really remember now for sure, but the splitting string into array
using an empty string ('') worked for me on pre-9.0 versions to get array of
string chars. Now I have the following behavior: 

    postgres=# select string_to_array('ab', '' ),
regexp_split_to_array('ab', '' );
     string_to_array │ regexp_split_to_array 
   
─────────────────┼───────
───────────────
     {ab}            │ {a,b}
    (1 row)

Why an empty string given as a separator to string_to_array is not splitting
the string at all?

Responses

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Next:From: Tom LaneDate: 2011-01-11 16:16:05
Subject: Re: BUG #5831: Splitting string into char array with string_to_array does not work
Previous:From: Richard BarattaDate: 2011-01-11 10:39:09
Subject: BUG #5830: Cannot connect to the server

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