On Sat, 11 Nov 2023 16:53:01 -0800 Adrian Klaver wrote: >On 11/11/23 16:25, pf@xxxxxxxxxxx wrote: >Reply to list also >Ccing list >> On Sat, 11 Nov 2023 16:16:20 -0800 Adrian Klaver wrote: >> > >>> Probably because it is spelled regexp_replace (). >> >> OK, found it in pg_catalog; but "create extension regexp_replace;" won't >> load it. How do I get regexp_* into public schema? > >Not sure why you are trying create extension regexp_replace;. > >The functions are already loaded: > >\df regexp_replace > List of functions > Schema | Name | Result data type | Argument >data types | Type >------------+----------------+------------------+------------------------------------------+------ > pg_catalog | regexp_replace | text | text, text, text > | func > pg_catalog | regexp_replace | text | text, text, text, >integer | func > pg_catalog | regexp_replace | text | text, text, text, >integer, integer | func > pg_catalog | regexp_replace | text | text, text, text, >integer, integer, text | func > pg_catalog | regexp_replace | text | text, text, text, >text | func Running my SQL in public, I get: An error occurred when executing the SQL command: select * from a,b where regex_replace(a.address,' ','','g') = regex_replace(b.address,' ','','g') ERROR: function regex_replace(text, unknown, unknown, unknown) does not exist Hint: No function matches the given name and argument types. You might need to add explicit type casts. Position: 27 Looks like rexexp_* need to be installed in each database I use... The question is how to use them from public where I get the above error...? >Just just them: > >select regexp_replace('Thomas', '.[mN]a.', 'M'); > regexp_replace >---------------- > ThM > > >> >> Sorry if this a newbie question... >> >>>> ncsbe=# \df "replace" >>>> List of functions >>>> Schema | Name | Result data type | Argument data types | Type >>>> ------------+---------+------------------+---------------------+------ >>>> pg_catalog | replace | text | text, text, text | func >>>> (1 row) >>>> >>>> ncsbe=# \df "regex" >>>> List of functions >>>> Schema | Name | Result data type | Argument data types | Type >>>> --------+------+------------------+---------------------+------ >>>> (0 rows) >>>> >>>> There are no regex* functions in /usr/share/postgresql/extension >>>> >>>> Thanks, >>>> Pierre >>>> >>>> >>> >