Want to migrate from Redshift to PostgreSQL ?
Try Withdata DBCopier, a Redshift to PostgreSQL converter for Windows, Mac, and Linux, Migrate Redshift to PostgreSQL, Easy and Fast.
- Step by Step, just a few mouse clicks.
- Create PostgreSQL tables with auto mapping data types. Create PostgreSQL indexes.
Migrate from Redshift to PostgreSQL
Login to Redshift -> Login to PostgreSQL -> Select tables to migrate -> Migrate from Redshift to PostgreSQL
Choose source Redshift database and logon.
Choose target PostgreSQL database and logon.
Click “Wizard – Import All Tables” at task dialog.
then show the wizard.
1. Open source Redshift.
2. Set “Import Type”.
3. Select PostgreSQL tables to migrate.
4. Migrate from Redshift to PostgreSQL.
Create PostgreSQL tables. Copy Redshift data to PostgreSQL. Create PostgreSQL indexes.
FAQ
More about Redshift to PostgreSQL converter
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See also:
Redshift → PostgreSQL reference
Type mapping
| Value kind | in Redshift | in PostgreSQL |
|---|---|---|
| Long text | varchar(max) | text |
| Binary | (none) | bytea |
| JSON | super | jsonb |
Dialect differences
Both Redshift and PostgreSQL are database servers, so the differences below are dialect-level: the same concept is spelled differently on each side.
| Property | in Redshift | in PostgreSQL |
|---|---|---|
| port | 5439 | 5432 |
| dates | timestamp, date | timestamp, timestamptz, date, time |
| long text | VARCHAR(MAX) | TEXT |
| binary | — | BYTEA |
Command line
| Side | Command |
|---|---|
| Redshift | UNLOAD to S3 |
| PostgreSQL | pg_dump or COPY ... TO |
| PostgreSQL (load) | COPY ... FROM |
| Redshift (load) | COPY from S3 |
No counterpart
- PostgreSQL has no equivalent for Binary – it has to be flattened or dropped.
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