Обсуждение: Re: [GENERAL] regexp_matches where clause - PG 9.1

2017-04-06 17:35 GMT+12:00 Arjen Nienhuis <a.g.nienhuis@gmail.com>:

On Apr 6, 2017 05:57, "Patrick B" <patrickbakerbr@gmail.com> wrote:

Hi guys,

i've got this column:

path_name character varying(255)

I store full S3 bucket path for the attachments of my application on it; example:

/{s3bucket}/filesuser/client/27801123/attachment/4510/main

/{s3bucket}/filesuser/client/27801123/attachment/4510/file

I wanna do a select, where path_name has only 'main' and not anything else.

WHERE path_nane LIKE '%/main'

I was able to do it like this:

WHERE (path_name)::text ~ '^\/filesuser\/client/\d+/(attachment)/\d+/(main)+'

Thanks

Patrick.

select REGEXP_REPLACE(path_name, '.*/', '') as col2 from seg_table limit 10;

photo.jpg
main
file

WHERE REGEXP_REPLACE(path_name, '.*/', '')::text = 'main'

When actually I just want the 'main''

On Thu, Apr 6, 2017 at 6:33 PM, Patrick B <patrickbakerbr@gmail.com> wrote:

When actually I just want the 'main''

​SELECT * FROM tbl WHERE path_name ~ '/main$' ?

David J.

​

David,

That won't work.

On Thu, Apr 6, 2017 at 7:15 PM, Patrick B <patrickbakerbr@gmail.com> wrote:

David,

That won't work.

​Actually, it works fine, you just keep moving the under-specified problem space.

​

I'd suggest creating a self-contained running example that gets you close and show what the final output should be.

David J.