How to pass table column values to function

Andrus <kobruleht2@xxxxxx> · Sat, 11 Feb 2023 12:10:25 +0200



    Hi!
    Table source contains integer column. Its values should be passed
      to function for selecting data from other table.

      
      I tried

      
              CREATE OR REPLACE FUNCTION
      public.TestAddAssetTransactions(dokumnrs int[]) 

               RETURNS int AS

              $BODY$

              
              with i1 as (

              INSERT INTO bilkaib (dokumnr)

              select dokumnr  from dok where dokumnr in (select * from
      unnest(dokumnrs))

              returning *

              )

              
              select count(*) from i1;

              $BODY$ language sql;

              
              create temp table bilkaib (dokumnr int ) on commit drop;

              create temp table dok (dokumnr serial primary key ) on
      commit drop;

              create temp table source (dokumnr int ) on commit drop;

              insert into source values (1),(2);

          
          select TestAddAssetTransactions( (select ARRAY[dokumnr] from
      source)::int[] )

      
      but got error

      
      > ERROR: more than one row returned by a subquery used as an
      _expression_

      
      How to pass set of integers to function? Should temp table with
      fixed name used or is there better solution?

      
      Using Postgresql 12+

      
      Andrus.