Re: BUG #14512: Backslashes in LIKE

On Tue, Jan 24, 2017 at 10:32 AM, David G. Johnston <
david(dot)g(dot)johnston(at)gmail(dot)com> wrote:

> On Tue, Jan 24, 2017 at 10:25 AM, <vojta(dot)rylko(at)gmail(dot)com> wrote:
>
>> The following bug has been logged on the website:
>>
>> Bug reference: 14512
>> Logged by: Vojtěch Rylko
>> Email address: vojta(dot)rylko(at)gmail(dot)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...
>

​Never mind - I was multi-tasking and mis-read what you wrote...

I'll give it more attention when I have a moment if no one else chimes in
first.

David J.​