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Split the foreign key sql script into an 'into' and 'from' portion

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Also, make use of up-front defined arrays of the tables involved, for
ease of editing in the future.
This commit is contained in:
Jeff Bradberry 2024-05-08 14:09:34 -04:00
parent 9e22865d2e
commit b837d549ff
1 changed files with 35 additions and 13 deletions
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48
tools/scripts/ig-hotfix/foreignkeys.sql
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@ -1,13 +1,35 @@
SELECT DISTINCT
tc.table_name,
ccu.table_name AS foreign_table_name
FROM information_schema.table_constraints AS tc
JOIN information_schema.constraint_column_usage AS ccu
ON ccu.constraint_name = tc.constraint_name
WHERE tc.constraint_type = 'FOREIGN KEY'
AND
(tc.table_name IN ('main_instance', 'main_instancegroup', 'main_instancegroup_instances')
AND ccu.table_name NOT IN ('main_instance', 'main_instancegroup', 'main_instancegroup_instances'))
OR
(ccu.table_name IN ('main_instance', 'main_instancegroup', 'main_instancegroup_instances')
AND tc.table_name NOT IN ('main_instance', 'main_instancegroup', 'main_instancegroup_instances'));
DO $$
DECLARE
topology text[] := ARRAY['main_instance', 'main_instancegroup', 'main_instancegroup_instances'];
excluded text[] := ARRAY['main_instance', 'main_instancegroup', 'main_instancegroup_instances', 'main_organizationinstancegroupmembership', 'main_unifiedjobtemplateinstancegroupmembership', 'main_inventoryinstancegroupmembership'];
BEGIN
CREATE TABLE tmp_fk_from AS (
SELECT DISTINCT
tc.table_name,
ccu.table_name AS foreign_table_name
FROM information_schema.table_constraints AS tc
JOIN information_schema.constraint_column_usage AS ccu
ON ccu.constraint_name = tc.constraint_name
WHERE tc.constraint_type = 'FOREIGN KEY'
AND tc.table_name = ANY (excluded)
AND NOT ccu.table_name = ANY (topology)
);
CREATE TABLE tmp_fk_into AS (
SELECT DISTINCT
tc.table_name,
ccu.table_name AS foreign_table_name
FROM information_schema.table_constraints AS tc
JOIN information_schema.constraint_column_usage AS ccu
ON ccu.constraint_name = tc.constraint_name
WHERE tc.constraint_type = 'FOREIGN KEY'
AND ccu.table_name = ANY (excluded)
AND NOT tc.table_name = ANY (topology)
);
END $$;
SELECT * FROM tmp_fk_from;
SELECT * FROM tmp_fk_into;
DROP TABLE tmp_fk_from;
DROP TABLE tmp_fk_into;