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Re: [BUGS] BUG #14512: Backslashes in LIKE - Mailing list pgsql-bugs

From David G. Johnston
Subject Re: [BUGS] BUG #14512: Backslashes in LIKE
Date
Msg-id CAKFQuwZkWcyFgib+nrBw59WnZUrFB6BLw004MhH0Yu+rPYMODw@mail.gmail.com
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In response to [BUGS] BUG #14512: Backslashes in LIKE  (vojta.rylko@gmail.com)
Responses Re: [BUGS] BUG #14512: Backslashes in LIKE  ("David G. Johnston" <david.g.johnston@gmail.com>)
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On Tue, Jan 24, 2017 at 10:25 AM, <vojta.rylko@gmail.com> wrote:
The following bug has been logged on the website:

Bug reference:      14512
Logged by:          Vojtěch Rylko
Email address:      vojta.rylko@gmail.com
PostgreSQL version: 9.5.5
Operating system:   Linux 3.19.0-32-generic x86_64
Description:

Hi, LIKE behaves differently depending on left side.

 
​???​
 
> select 1 where '\' like '\\\'; -- one and three backslashes
 ?column?
----------
(0 rows)

> select 1 where '\\' like '\\\'; -- two and three backslashes
ERROR:  LIKE pattern must not end with escape character


​The right-hand side is the "pattern" - i.e., <\\\> - which ends with the escape...

​David J.
​

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