Withdata Software

PostgreSQL import multiple TSV files into a single table

Want to import multiple TSV files into a single PostgreSQL table?

Try Withdata FileToDB, a desktop TSV to PostgreSQL converter for Windows, MacOS, and Linux, Convert TSV to PostgreSQL, Easy and Fast.

Download FileToDB
Windows 64 bit
Windows 32 bit
Linux .deb (For Debian, Ubuntu) 64 bit
Linux .rpm (For Red Hat, Fedora, SUSE) 64 bit
MacOS 64 bit

Import multiple TSV files into a single PostgreSQL table

Login to PostgreSQL -> Choose TSV files -> Set PostgreSQL table -> Import TSV files to PostgreSQL table

Choose PostgreSQL and logon.

Click “Wizard – N Files To 1 Table” at task dialog.

Select the “TSV” file type.

then show the wizard.

1. Select a folder that constains TSV files.

Support large ( > 4GB ) TSV files.

2. Config first TSV file importing options.

3. Select a PostgreSQL table and config fields.

4. Preview data will be in PostgreSQL table.

5. Import multiple TSV files to the PostgreSQL table.

View imported data in PostgreSQL table

Import multiple TSV files to PostgreSQL in command line

Save “multiple TSV files to PostgreSQL” session, then you can:

Set scheduled tasks for importing multiple TSV files to PostgreSQL

You can schedule and automate this converting task by:

  1. Save session and create .bat (Windows) or .sh (Linux/macOS) file for “TSV to PostgreSQL” conversion.
  2. Set scheduled task for “TSV to PostgreSQL” conversion.

FAQ

What is Withdata FileToDB?
Withdata FileToDB is an ETL software can import TSV data to PostgreSQL. Download Withdata FileToDB
How long does it take to import TSV data to PostgreSQL?
FileToDB works fast. It convert millions of rows within a minute.
Is it safe to import TSV data to PostgreSQL using FileToDB?
Of course! FileToDB import TSV data to PostgreSQL locally, absolutely safe.
Can I import TSV data to PostgreSQL on Linux, Mac OS?
Yes, you can. FileToDB has Linux, Mac OS, and Windows version.
Can I import TSV data to PostgreSQL in command line?
Yes, you can. FileToDB can running in command line, on Linux, Mac OS, and Windows.


More about Withdata FileToDB – TSV to PostgreSQL converter

See also:

TSV → PostgreSQL reference

Type mapping

Value kindin TSVin PostgreSQL
Int1234integer
Bigint9007199254740993bigint
Decimal1234.56numeric(p,s)
Float1.234e+10double precision
Textunquoted; a tab in the value splits the columnvarchar(n)
Long textunquoted; newlines break the rowtext
Date2026-09-18date
Datetime2026-09-18 14:30:00timestamp
Binarynot representablebytea
BooleanTRUE / FALSEboolean
JSONthe whole JSON value as-is (its own quotes stay)jsonb

Dialect differences

TSV is a file format and PostgreSQL is a database server, so the target has to be told the types the file never carried - the rows below are where the two sides diverge.

Propertyin TSVin PostgreSQL
port—5432
identifiersRarely used, which is exactly why tabs in data break it"double quotes"
row limit—LIMIT n
datesConventional text: 2026-09-18 or 2026-09-18 14:30:00timestamp, timestamptz, date, time
long text—TEXT
binaryNot supported - must be encodedBYTEA
separatorTab—
encodingNo declaration - UTF-8 works only with a BOM—
typingNone - every field is text—
shapeFlat table, optional header rowTables of rows and columns
ceilingNo formal limit—

Command line

SideCommand
PostgreSQLpg_dump or COPY ... TO
PostgreSQL (load)COPY ... FROM

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.

New to the format? Read what a TSV file is (and how it differs from CSV).