Re: pg_dump: regular expression notation for tables

On Tue, Sep 6, 2022 at 08:15:14AM +0000, PG Doc comments form wrote:
> The following documentation comment has been logged on the website:
>
> Page: https://www.postgresql.org/docs/14/app-pgdump.html
> Description:
>
> Hi,
>
> The pg_dump page mentions:
>
> https://www.postgresql.org/docs/current/app-pgdump.html#PG-DUMP-EXAMPLES
> ==
> To dump all schemas whose names start with east or west and end in gsm,
> excluding any schemas whose names contain the word test:
> $ pg_dump -n 'east*gsm' -n 'west*gsm' -N '*test*' mydb > db.sql
>
> The same, using regular expression notation to consolidate the switches:
> $ pg_dump -n '(east|west)*gsm' -N '*test*' mydb > db.sql
> ==
>
> However the manual doesn't mention anything about regular expressions
> otherwise.
>
> If it is possible to use regular expressions then the examples would have
> issues:
>
> east*gsm would match easgsm, eastgsm, eastttttgsm, but not east.gsm or
> east_tower.gsm
> (east|west)*gsm would match gsm, eastgsm, eastwesteastgsm, but not east.gsm
> or east_tower.gsm
>
> Perhaps regular expressions are not supported, but simply some sort of glob
> expression?

The pg_dump documentation says "(see Patterns below)" in several places,
and that link points to:

https://www.postgresql.org/docs/15/app-psql.html#APP-PSQL-PATTERNS

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Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EDB https://enterprisedb.com

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