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Database & Data Management · head to head

PostgreSQL vs Teradata

PostgreSQL logo

PostgreSQL

Database & Data Management

The world's most advanced open source relational database

From
Free
Rated
-
Full reviewWebsite
T

Teradata

Database & Data Management

Autonomous Knowledge Platform for Enterprise AI

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only PostgreSQL has a free tier, so it costs nothing to try first.
  • Each has a real cost: PostgreSQL requires manual scaling across multiple machines for very large deployments; Teradata no pricing is disclosed on the site; buyers must contact sales or use a free evaluation program to get a quote, per teradata.com, August 2026

Where they differ

Only the attributes on which PostgreSQL and Teradata actually diverge.

Attributes where PostgreSQL and Teradata differ
AttributePostgreSQLTeradata
Starting priceFreeOn request
Pricing modelUnknownquote
Free tierYesNo
PlatformsLinux, Windows, macOS, BSD, UnixWeb
Founded1996Unknown

Identical on both: user rating (Not yet rated), category (Database & Data Management).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in PostgreSQL

  • ACID Compliance
  • JSON/JSONB Support
  • Full-text Search
  • Extensibility
  • Advanced Indexing
  • Partitioning
  • Replication
  • pgAdmin

Only in Teradata

Nothing recorded that PostgreSQL does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

PostgreSQL

  • Transaction processingnot Teradata
  • Data storagenot Teradata
  • Application backendnot Teradata
  • Reportingnot Teradata
  • Data analyticsnot Teradata

Teradata

No use cases recorded yet. See the Teradata review.

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

PostgreSQL

  • Requires manual scaling across multiple machines for very large deployments
  • Performance tuning requires deep knowledge of database internals
  • No built-in graphical admin interface; command-line tools are primary method

Teradata

  • No pricing is disclosed on the site; buyers must contact sales or use a free evaluation program to get a quote, per teradata.com, August 2026

Pricing, plan by plan

PostgreSQL

Free

No published plan breakdown. See the PostgreSQL review.

Teradata

On request

No published plan breakdown. See the Teradata review.

Which should you pick?

Choose PostgreSQL if

  • You need acid compliance.
  • You want to start without paying.
  • You work on Linux, Windows, macOS, BSD, Unix.
  • You also want json/jsonb support.
PostgreSQL review

Choose Teradata if

Nothing in the data separates Teradata from PostgreSQL on the points above - pick on price and on how each one feels to use.

Teradata review

Questions people ask

Is PostgreSQL or Teradata better?
Neither clearly leads. PostgreSQL starts at Free and Teradata at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, PostgreSQL or Teradata?
PostgreSQL has a free tier; the other does not. Paid plans start at Free for PostgreSQL and On request for Teradata.
Does PostgreSQL or Teradata run on more platforms?
PostgreSQL runs on Linux, Windows, macOS, BSD, Unix. Teradata runs on Web.
Can I use PostgreSQL for free?
Yes. PostgreSQL has a free tier, so you can try it without paying. Teradata starts at On request.
What is PostgreSQL best used for?
PostgreSQL is most often used for transaction processing, data storage, application backend, reporting. Of those, transaction processing and data storage are not what Teradata is typically brought in for.
What can PostgreSQL do that Teradata cannot?
PostgreSQL covers ACID Compliance, JSON/JSONB Support, Full-text Search, Extensibility.

Answered from the vendors’ own pages

PostgreSQL: Is PostgreSQL completely free?

Yes. PostgreSQL is completely free and open source with no licensing fees or restrictions on use.

Source
PostgreSQL: What platforms does PostgreSQL run on?

PostgreSQL runs on all major operating systems including Linux, Windows, macOS, BSD, and commercial Unix variants, and has been proven highly scalable managing terabytes to petabytes of data.

Source
PostgreSQL: What procedural languages are supported?

PostgreSQL supports stored functions and procedures in multiple languages including PL/pgSQL, Perl, Python, Tcl, Java, JavaScript, R, and Rust.

Source
PostgreSQL: What is ACID compliance in PostgreSQL?

PostgreSQL has been ACID-compliant since 2001, ensuring data integrity through atomicity, consistency, isolation, and durability guarantees for all transactions.

Source
PostgreSQL: Does PostgreSQL support JSON data?

Yes. PostgreSQL supports JSON and JSONB data types for storing and querying JSON documents, along with XML and other document formats.

Source
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