How to change the schema by arg text in postgres procedure

问题

CREATE OR REPLACE FUNCTION newfunction (Schema1 text, Schema2 text)
RETURNS integer
LANGUAGE plpgsql
SECURITY DEFINER
AS $function$ 
.
.
.
insert into [Schema1].table (name,phone,address,......)
select name,phone,address,..... from [Schema2].table where....;

I want to change the schema by arg text is this possible to do this?

回答1:

You'll have to use dynamic SQL throughout:

EXECUTE
   format(
      E'INSERT INTO %I.tab (...)\n'
      'SELECT ... FROM %I.tab WHERE ...',
      schema1,
      schema2
   );

来源：https://stackoverflow.com/questions/58636295/how-to-change-the-schema-by-arg-text-in-postgres-procedure