BEGIN TRANSACTION;

-- Create a new column with the desired data type
ALTER TABLE "EventLogs"
ADD COLUMN IF NOT EXISTS "NewStreamID" VARCHAR(255) NOT NULL;

-- Update values in the new column (cast the original int8 to varchar)
UPDATE "EventLogs"
SET "NewStreamID" = CAST("StreamID" AS VARCHAR);

-- Drop the original column (keeping only valid data)
ALTER TABLE "EventLogs"
DROP COLUMN "StreamID";

-- Rename the new column to the original name
ALTER TABLE "EventLogs"
RENAME COLUMN "NewStreamID" TO "StreamID";

COMMIT TRANSACTION;