Migration Playbook: MySQL / MariaDB → PostgreSQL 16+
MySQL to PostgreSQL Migration & Schema Translation
Migrate mission-critical MySQL databases to modern PostgreSQL, unlocking powerful JSONB indexing, advanced window functions, and pgvector.
Migration Drivers
Why companies migrate away from MySQL / MariaDB
Strict ACID & Transactional DDL
MySQL's lack of transactional schema migrations making DDL rollbacks dangerous in production.
Advanced Query & JSON Capabilities
PostgreSQL's superior JSONB indexing, CTE query planning, and native vector search capabilities.
Connection & Concurrency Bottlenecks
MySQL table locking issues under heavy write concurrency compared to Postgres MVCC.
Execution Sequence
The 4-Phase Zero-Downtime Blueprint
Our structured migration process ensures uninterrupted production uptime, continuous data synchronization, and rollback safety.
Schema Translation & Compatibility Audit
Converting MySQL data types (TINYINT, DATETIME, ENUM) to PostgreSQL equivalents with pgloader.
Dual-Writing & Change Data Capture
Replicating live MySQL transactions to target PostgreSQL using Debezium and Kafka.
Shadow Query Verification
Mirroring application read queries to PostgreSQL to compare performance and result accuracy.
Zero-Downtime Write Cutover
Flipping application connection strings during a sub-second maintenance window.
Risk Prevention
Pitfalls that derail this migration
Case Sensitivity Mismatches
MySQL case-insensitive collation causing unexpected duplicate key errors during PostgreSQL import.
Auto-Increment Sequence Desynchronization
Forgetting to reset PostgreSQL serial sequences after bulk data loading, causing primary key collisions.
Implicit Type Coercion Bugs
MySQL leniently coercing invalid strings into 0 or empty dates, which PostgreSQL strictly rejects.
Migration FAQs
Frequently asked migration questions
Yes. We use Change Data Capture (CDC) to stream live changes while bulk loading historical data, reducing final cutover downtime to under 60 seconds.
We convert MySQL stored routines to PostgreSQL PL/pgSQL functions, auditing them for concurrency safety.
Zero downtime, zero data loss, senior-only execution
Schedule a strategy call to review your architecture, data volume, and migration timeline with our cloud engineers.