fix(account): MySQL TEXT column default value compatibility (#502)#503
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chenyme merged 1 commit intochenyme:mainfrom Apr 22, 2026
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MySQL does not allow DEFAULT values on TEXT/BLOB/JSON columns (error 1101).
Split the ALTER TABLE migration into three steps for MySQL: add as nullable
TEXT, backfill existing rows with '{}', then promote to NOT NULL.
PostgreSQL path is unchanged.
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Problem
Deploying on MySQL (e.g. Vercel + Aiven MySQL) fails at startup with:
MySQL does not allow values on , , or columns. The migration uses raw SQL that hits this restriction.
Fix
For MySQL: split the migration into three idempotent steps:
For PostgreSQL: unchanged — works fine on Postgres.
The application layer already handles NULL/ coercion ( uses ), so the backfill value is consistent with existing behavior.
Closes #502