DROP INDEX if EXISTS idx_unique_tokens_yclients; DROP TABLE IF EXISTS YclientsTokens; ALTER TABLE YclientsAccounts DROP COLUMN IF EXISTS ShortDecription, DROP COLUMN IF EXISTS Country; ALTER TABLE YclientsTimeSlots ALTER COLUMN DatesSettings SET DEFAULT '[]'::jsonb; UPDATE YclientsTimeSlots SET DatesSettings = '[]'::jsonb WHERE DatesSettings = '{}'::jsonb; ALTER TABLE YclientsServices ALTER COLUMN PriceMin TYPE FLOAT USING NULLIF(PriceMin, '')::FLOAT, ALTER COLUMN PriceMax TYPE FLOAT USING NULLIF(PriceMax, '')::FLOAT, ALTER COLUMN Discount TYPE INT USING NULLIF(Discount, '')::INT;