I have noticed that the highlight missing after the ARRAY expression [ ].
The PSQL script can be run successfully but it's quite annoying.
SELECT ARRAY [ CONCAT('0', SUBSTRING(REGEXP_REPLACE(test.elec_num, '[^0-9]', '', 'g') FROM 3)) ]
FROM test
WHERE LENGTH(test.elec_num) > 10;
Is there any way to fix this issue?

