Re: Lower or Upper case for F.33. pg_trgm

Erik Rijkers <er@xs4all.nl>

From: Erik Rijkers <er@xs4all.nl>
To: Daniel Gustafsson <daniel@yesql.se>
Cc: marcmaiwald@googlemail.com, pgsql-docs@lists.postgresql.org
Date: 2022-08-16T13:03:05Z
Lists: pgsql-docs

Attachments

Op 16-08-2022 om 13:46 schreef Daniel Gustafsson:
>> On 16 Aug 2022, at 12:54, Erik Rijkers <er@xs4all.nl> wrote:
>>
>> Op 16-08-2022 om 12:36 schreef Daniel Gustafsson:
>>>> On 16 Aug 2022, at 12:17, PG Doc comments form <noreply@postgresql.org> wrote:
>>>> I have a question regarding the trigram algorithm and I can not find any
>>>> information about it in your documentation:
>>> Maybe we should add something about this?
>>
>> Yeah, it's a bit strange that none of the following strings yield any info on that page:  'case', 'sensitiv', 'upper', 'lower', and that there is no mention of the  ~  versus  ~*  difference.
>>
>> Maybe worth to (already in pgtrgm.html) give the simple hint:
>>   ~  is case-sensitive
>>   ~* is case-insensitive
>>
>> In any case a link to  functions-matching.html  seems indicated.
> 
> Yeah, I think there is room for improvements here.  Are you up for drafting a
> patch for this?
> 

How is this?

(bluntly stating 'similarity comparisons are case-insensitive' - 
although I'm not really sure..)


Erik

> --
> Daniel Gustafsson		https://vmware.com/
> 

Commits

  1. doc: Consistently spell case-insensitive

  2. doc: Document pg_trgm being case-insensitive by default