Thread: psql variable to plpgsql?
Hi all
Is there a way to pass the value of a psql variable into function
code? I create a schema with help of psql variable
\set SCHEMA_NAME LOGGER
create
schema :SCHEMA_NAME;
I would like to create a function that has the Schema hard coded like
declare
V_SCHEMA_NAME text := :SCHEMA_NAME;
begin
but as the plpgsql code is within quotes, it Fails.
Kind regards
Thiemo
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Hi
2018-04-11 8:51 GMT+02:00 Thiemo Kellner <thiemo@gelassene-pferde.biz>:
Hi all
Is there a way to pass the value of a psql variable into function code? I create a schema with help of psql variable
\set SCHEMA_NAME LOGGER
create
schema :SCHEMA_NAME;
I would like to create a function that has the Schema hard coded like
declare
V_SCHEMA_NAME text := :SCHEMA_NAME;
begin
but as the plpgsql code is within quotes, it Fails.
No, there is not possible to read/write client side variables from server side.
Regards
Pavel
Kind regards
Thiemo
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Zitat von Pavel Stehule <pavel.stehule@gmail.com>: > No, there is not possible to read/write client side variables from server > side. I did not mean that the variable be replaced by its value at execution time but at Installation time. -- Öffentlicher PGP-Schlüssel: http://pgp.mit.edu/pks/lookup?op=get&search=0x8F70EFD2D972CBEF ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.
2018-04-11 11:36 GMT+02:00 Thiemo Kellner, NHC Barhufpflege <thiemo.kellner@gelassene-pferde.biz>:
Zitat von Pavel Stehule <pavel.stehule@gmail.com>:No, there is not possible to read/write client side variables from server
side.
I did not mean that the variable be replaced by its value at execution time but at Installation time.
no. The :xxx is not evaluated inside string. The workaround is using GUC variables and related functions. Can be used from psql and from plpgsql too.
https://stackoverflow.com/questions/13172524/passing-user-id-to-postgresql-triggers/13172964#13172964
https://stackoverflow.com/questions/13172524/passing-user-id-to-postgresql-triggers/13172964#13172964
Regards
Pavel
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Zitat von Pavel Stehule <pavel.stehule@gmail.com>: > no. The :xxx is not evaluated inside string. The workaround is using GUC > variables and related functions. Can be used from psql and from plpgsql too. Hi Pavel, thanks for pointing this out. However, I implemented another solution with dedicated PostgreSQL user where I do not need such variables in literals. -- Öffentlicher PGP-Schlüssel: http://pgp.mit.edu/pks/lookup?op=get&search=0x8F70EFD2D972CBEF ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.