-- Add the check constraint
alter table public.test_partition_10_25 add constraint test_partition_10_25_constraint CHECK (id >= 10 AND id <25) NOT VALID;
update pg_constraint pgc
SET convalidated = true
FROM pg_class c
WHERE
c.oid = pgc.conrelid
AND connamespace = 'public'::regnamespace::oid
AND c.relname = 'test_partition_10_25'
AND conname = 'test_partition_10_25_constraint';
Basically there are 4 steps:
Rename old table
Create new table
with partitioning
Add constraint on old table for it's proposed partition ranges
Attach old table as a partition to new partition table
Sounds easy right?
What about indexes? What about Triggers?
And guess what, there are other traps to watch out for!
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