26 lines
849 B
MySQL
26 lines
849 B
MySQL
|
-- Add short_user_id column to profiles table
|
||
|
|
ALTER TABLE profiles ADD COLUMN short_user_id TEXT;
|
||
|
|
|
||
|
|
-- Update existing records with the first 6 characters of their id
|
||
|
|
UPDATE profiles SET short_user_id = LEFT(id::TEXT, 6);
|
||
|
|
|
||
|
|
-- Make the column NOT NULL after populating existing records
|
||
|
|
ALTER TABLE profiles ALTER COLUMN short_user_id SET NOT NULL;
|
||
|
|
|
||
|
|
-- Create an index on short_user_id for better query performance
|
||
|
|
CREATE INDEX idx_profiles_short_user_id ON profiles(short_user_id);
|
||
|
|
|
||
|
|
-- Add a trigger to automatically populate short_user_id for new records
|
||
|
|
CREATE OR REPLACE FUNCTION set_short_user_id()
|
||
|
|
RETURNS TRIGGER AS $$
|
||
|
|
BEGIN
|
||
|
|
NEW.short_user_id = LEFT(NEW.id::TEXT, 6);
|
||
|
|
RETURN NEW;
|
||
|
|
END;
|
||
|
|
$$ LANGUAGE plpgsql;
|
||
|
|
|
||
|
|
CREATE TRIGGER trigger_set_short_user_id
|
||
|
|
BEFORE INSERT ON profiles
|
||
|
|
FOR EACH ROW
|
||
|
|
EXECUTE FUNCTION set_short_user_id();
|