pass multiple arrays as input to a function in PostgreSQL - postgresql

Question

I have a requirement to pass 2 arrays as input to a function
array 1: acct_num, salary etc
array 2:
{1011,'Unit 102, 100 Wester highway, Paramataa'}
{1012,'[phone]'}
In above example, array 2 can be dynamic, meaning they can pass upto 500 keys
How to process each array key and the value, because I ned to store address information in addresss table and phone number in PHONE table.
I need assistance to access each element in array, but I dont know how to process second elemtn in array 2 (ex:[phone])
CREATE OR REPLACE FUNCTION schema.test(
arraytext character varying[],
arraydomain character varying[][])
RETURNS integer AS
$BODY$
DECLARE
BEGIN
p_v1_1 := arraytext[1];
p_v2_1 := generate_subscripts($1, arraydomain[1]); --arraydomain[1];
p_v2_2 := arraydomain[2];
raise notice 'p_v1_1 : %', p_v1_1;
raise notice 'p_v2_1 : %', p_v2_1;
raise notice 'p_v2_2 : %', p_v2_2;
p_v2_3 := arraydomain[3];
p_v2_4 := arraydomain[4];
raise notice 'p_v2_3 : %', p_v2_3;
raise notice 'p_v2_4 : %', p_v2_4;
RETURN 0;
--EXCEPTION WHEN others THEN
-- RETURN 1;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
Then I use:
SELECT *
FROM schema.test(ARRAY['9361030699999'], ARRAY[['1011','Unit 102, 100 Wester highway, Paramataa'],['1012','[phone]']]);

Answer 1

Here's a function showing a couple ways of accessing multidimensional arrays. One just loops through the array using a slice, which is the easiest way - the c variable simply exists so I can print the "outer" index, it's not necessary at all.
The other way accesses the values directly. However I don't know how to get each "subarray" itself via index access - e.g. ar[2:2] returns {{values}}, (ar[2:2])[1] returns NULL, and (ar[2:2])[1][1] returns the value of the item in the subarray at that index - the middle one returning NULL is something I don't get. If you could get it, then you could use ARRAY_UPPER to access all the values dynamically without using FOREACH/SLICE.
Also notice I don't declare TEXT[][] - it makes no difference.
CREATE OR REPLACE FUNCTION public.f1(ar TEXT[])
RETURNS VOID AS
$BODY$
DECLARE
_ar TEXT[];
c INTEGER := 0;
BEGIN
FOREACH _ar SLICE 1 IN ARRAY ar LOOP
c := c + 1;
FOR i IN 1..ARRAY_UPPER(_ar, 1) LOOP
RAISE NOTICE '%.%: %', c, i, _ar[i];
END LOOP;
END LOOP;
RAISE NOTICE 'Alternative: %, %', (ar[2:2])[1][1], (ar[2:2])[1][2];
END
$BODY$
LANGUAGE plpgsql IMMUTABLE;
Call:
SELECT * FROM public.f1(ARRAY[['1011','Unit 102, 100 Wester highway, Paramataa'],['1012','[phone]']]);
Prints:
NOTICE: 1.1: 1011
NOTICE: 1.2: Unit 102, 100 Wester highway, Paramataa
NOTICE: 2.1: 1012
NOTICE: 2.2: [phone]
NOTICE: Alternative: 1012, [phone]