37 lines
1.1 KiB
MySQL
37 lines
1.1 KiB
MySQL
|
-- +goose Up
|
||
|
|
-- Step 1: Drop foreign key constraints that reference the composite primary key
|
||
|
|
ALTER TABLE feature DROP CONSTRAINT feature_site_id_site_version_fkey;
|
||
|
|
ALTER TABLE lead DROP CONSTRAINT lead_site_id_site_version_fkey;
|
||
|
|
ALTER TABLE resident DROP CONSTRAINT resident_site_id_site_version_fkey;
|
||
|
|
|
||
|
|
-- Step 2: Drop the existing composite primary key
|
||
|
|
ALTER TABLE site DROP CONSTRAINT site_pkey;
|
||
|
|
|
||
|
|
-- Step 3: Create new primary key on just the id column
|
||
|
|
ALTER TABLE site ADD PRIMARY KEY (id);
|
||
|
|
|
||
|
|
-- Step 4: Create a unique constraint on (id, version) to maintain uniqueness
|
||
|
|
ALTER TABLE site ADD CONSTRAINT site_id_version_unique UNIQUE (id, version);
|
||
|
|
|
||
|
|
-- Step 5: Recreate the foreign key constraints
|
||
|
|
ALTER TABLE feature
|
||
|
|
ADD CONSTRAINT feature_site_id_fkey
|
||
|
|
FOREIGN KEY (site_id)
|
||
|
|
REFERENCES site(id);
|
||
|
|
ALTER TABLE feature
|
||
|
|
DROP COLUMN site_version;
|
||
|
|
|
||
|
|
ALTER TABLE lead
|
||
|
|
ADD CONSTRAINT lead_site_id_fkey
|
||
|
|
FOREIGN KEY (site_id)
|
||
|
|
REFERENCES site(id);
|
||
|
|
ALTER TABLE lead
|
||
|
|
DROP COLUMN site_version;
|
||
|
|
|
||
|
|
ALTER TABLE resident
|
||
|
|
ADD CONSTRAINT resident_site_id_fkey
|
||
|
|
FOREIGN KEY (site_id)
|
||
|
|
REFERENCES site(id);
|
||
|
|
ALTER TABLE resident
|
||
|
|
DROP COLUMN site_version;
|