Want to import data from TSV file to PostgreSQL?
Try Withdata FileToDB, a desktop TSV to PostgreSQL converter for Windows, MacOS, and Linux, Convert TSV to PostgreSQL, 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.
- Convert locally and privately, avoid uploading large or private TSV file(s) to online services.
- Support Windows, Linux, and macOS.
Import data from TSV file to PostgreSQL
Login to PostgreSQL -> Choose TSV file -> Set PostgreSQL table -> Import TSV to PostgreSQL
Choose PostgreSQL and logon.
Click “Wizard – 1 File To 1 Table” at task dialog.
Select the “TSV” file type.
then show the wizard.
1. Open a TSV file.
Support large ( > 4GB ) TSV file.
Here is the file’s content.
2. Select a PostgreSQL table and config fields.
3. Preview data will be in PostgreSQL table.
4. Import TSV data to PostgreSQL.
View imported data in PostgreSQL table
Import TSV to PostgreSQL in command line
Save “TSV to PostgreSQL” session, then you can:
- Import TSV to PostgreSQL in Windows command line.
- Import TSV to PostgreSQL in Linux command line.
- Import TSV to PostgreSQL in macOS command line.
Set scheduled tasks for importing TSV to PostgreSQL
You can schedule and automate this “TSV to PostgreSQL” conversion task by:
- Save session and create .bat (Windows) or .sh (Linux/macOS) file for “TSV to PostgreSQL” conversion.
- Set scheduled task for “TSV to PostgreSQL” conversion.
FAQ
What is Withdata FileToDB?
How long does it take to import TSV data to PostgreSQL?
Is it safe to import TSV data to PostgreSQL using FileToDB?
Can I import TSV data to PostgreSQL on Linux, Mac OS?
Can I import TSV data to PostgreSQL in command line?
More about Withdata FileToDB – TSV to PostgreSQL converter
Download Withdata FileToDB
See also:
- PostgreSQL import multiple TSV files into a single table
- Bulk import TSV files into PostgreSQL tables
TSV → PostgreSQL reference
Type mapping
| Value kind | in TSV | in PostgreSQL |
|---|---|---|
| Int | 1234 | integer |
| Bigint | 9007199254740993 | bigint |
| Decimal | 1234.56 | numeric(p,s) |
| Float | 1.234e+10 | double precision |
| Text | unquoted; a tab in the value splits the column | varchar(n) |
| Long text | unquoted; newlines break the row | text |
| Date | 2026-09-18 | date |
| Datetime | 2026-09-18 14:30:00 | timestamp |
| Binary | not representable | bytea |
| Boolean | TRUE / FALSE | boolean |
| JSON | the 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.
| Property | in TSV | in PostgreSQL |
|---|---|---|
| port | — | 5432 |
| identifiers | Rarely used, which is exactly why tabs in data break it | "double quotes" |
| row limit | — | LIMIT n |
| dates | Conventional text: 2026-09-18 or 2026-09-18 14:30:00 | timestamp, timestamptz, date, time |
| long text | — | TEXT |
| binary | Not supported - must be encoded | BYTEA |
| separator | Tab | — |
| encoding | No declaration - UTF-8 works only with a BOM | — |
| typing | None - every field is text | — |
| shape | Flat table, optional header row | Tables of rows and columns |
| ceiling | No formal limit | — |
Command line
| Side | Command |
|---|---|
| PostgreSQL | pg_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).
