# [RNBK|INFR] MySQL → MariaDB transition review (summary)
AI Summary
Purpose:
- Record the 2026-07-07 license-driven engine transition review (DAT-3313/3314),
authored by 김현욱. Captured from search summary; full body not copied.
Key points:
- Trigger: customer (AIA생명) license policy inquiry about MySQL (2026-07-02 mail).
- Option A: staged engine transition (stage 1 customer DBs → stage 2 collection/
distribution DBs).
- Option B: improve the Binlog shipping service first, then support
MySQL/MariaDB/PostgreSQL on customer(PROD) side only — per-customer choice.
- Target engine and option to be fixed after license policy confirmation;
effort figures are estimates pending PoC.
- Companion measurement study: ai/sources/confluence/2026-07-17-db-engine-comparison.md.
Relevant when:
- License policy discussions resume, or resume material about license-driven
architecture decisions.
Do not read full document unless:
- Policy is confirmed and detailed work items are needed — open origin page.
Open Questions
- License policy level (Oracle-only avoidance vs full GPL ban) unconfirmed.
- Effort estimates not PoC-validated yet.