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Re: Aren't regex_*() functions built-in?

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On 11/11/23 17:04, pf@xxxxxxxxxxx wrote:
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')

Again because it is regexp_replace not regex_replace. NOTE the 'p'.
                         ^

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...?



--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx






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