Want to sync data from PostgreSQL to MariaDB?
Try Withdata DBCopier, a PostgreSQL to MariaDB converter for Windows, Mac, and Linux, Synchronize PostgreSQL to MariaDB, Easy and Fast.
- Can run in GUI mode, Step by Step, just a few mouse clicks.
- Can run in Command line, for Scheduled Tasks and Streams.
- Support Windows, Linux, and macOS.
Synchronize data from PostgreSQL to MariaDB
Login to PostgreSQL and target MariaDB -> Select source PostgreSQL tables -> Set target MariaDB tables -> Sync PostgreSQL data to MariaDB
Choose source PostgreSQL database and logon.

Choose target MariaDB database and logon.

Click “Wizard – Import All Tables” at task dialog.

then show the wizard.
1. Select source PostgreSQL tables to sync.

2. List target MariaDB tables.
Set “Import Type” to “Replace”, it will do a full synchronization.

Or set “Import Type” to “Upsert”, it will do a upsert synchronization.

3. Select MariaDB tables to sync.

4. Sync PostgreSQL data to MariaDB.

More about PostgreSQL to MariaDB converter
See also:
PostgreSQL → MariaDB reference
Type mapping
| Value kind | in PostgreSQL | in MariaDB |
|---|---|---|
| Int | integer | INT |
| Bigint | bigint | BIGINT |
| Decimal | numeric(p,s) | DECIMAL(p,s) |
| Float | double precision | DOUBLE |
| Text | varchar(n) | VARCHAR(n) |
| Long text | text | LONGTEXT |
| Date | date | DATE |
| Datetime | timestamp | DATETIME |
| Binary | bytea | LONGBLOB |
| Boolean | boolean | TINYINT(1) |
| JSON | jsonb | JSON |
Dialect differences
Both PostgreSQL and MariaDB are database servers, so the differences below are dialect-level: the same concept is spelled differently on each side.
| Property | in PostgreSQL | in MariaDB |
|---|---|---|
| port | 5432 | 3306 |
| identifiers | "double quotes" | `backtick` |
| dates | timestamp, timestamptz, date, time | DATETIME, TIMESTAMP, DATE, TIME |
| long text | TEXT | TINYTEXT / TEXT / MEDIUMTEXT / LONGTEXT |
| binary | BYTEA | BLOB / TINYBLOB / LONGBLOB |
Command line
| Side | Command |
|---|---|
| PostgreSQL | pg_dump or COPY ... TO |
| MariaDB | mariadb-dump |
| MariaDB (load) | mariadb-import, or LOAD DATA INFILE |
| PostgreSQL (load) | COPY ... FROM |
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