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Merge multiple similar Redshift tables to 1 PostgreSQL table

Want to transfer data from multiple similar Redshift tables to 1 PostgreSQL table?

Try Withdata DBCopier, a Redshift to PostgreSQL converter for Windows, Mac, and Linux, Copy Redshift data to PostgreSQL, Easy and Fast.

Download Withdata DBCopier
Windows 64 bit
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Linux .deb (For Debian, Ubuntu) 64 bit
Linux .rpm (For Red Hat, Fedora, SUSE) 64 bit
MacOS 64 bit

Transfer data from multiple similar Redshift tables to a single PostgreSQL table

Login to Redshift and PostgreSQL -> Select source Redshift tables -> Set the target PostgreSQL table -> Copy Redshift data to PostgreSQL

Choose source Redshift database and logon.

Choose target PostgreSQL database and logon.

Click “Convert Similar Tables” at task dialog.

then show the wizard.

1. Select similar Redshift tables.

2. Select a destination PostgreSQL table and config fields.

3. Preview data.

4. Import data from multiple similar Redshift tables to a single PostgreSQL table.


More about Redshift to PostgreSQL converter

See also:

Redshift → PostgreSQL reference

Type mapping

Value kindin Redshiftin PostgreSQL
Long textvarchar(max)text
Binary(none)bytea
JSONsuperjsonb

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.

Propertyin Redshiftin PostgreSQL
port54395432
datestimestamp, datetimestamp, timestamptz, date, time
long textVARCHAR(MAX)TEXT
binary—BYTEA

Command line

SideCommand
RedshiftUNLOAD to S3
PostgreSQLpg_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.

Convert your data online, free

Free in-browser converters for CSV, Excel, JSON, XML and SQL: Withdata Online Data Conversion. Large files, batch conversion or scheduling? See the offline desktop apps, or browse all data conversion tools.