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Asked: 2026-05-23T02:43:44+00:00

I am trying find out what is postgres can handle safely inside of transaction,

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I am trying find out what is postgres can handle safely inside of transaction, but I cannot find the relavant information in the postgres manual. So far I have found out the following:

  • UPDATE, INSERT and DELTE are fully supported inside transactions and rolled back when the transaction is not finished
  • DROP TABLE is not handled safely inside a transaction, and is undone with a CREATE TABLE, thus recreates the dropped table but does not repopulate it
  • CREATE TABLE is also not truly transactionized and is instead undone with a corresponding DROP TABLE

Is this correct? Also I could not find any hints as to the handling of ALTER TABLE and TRUNCATE. In what way are those handled and are they safe inside transactions? Is there a difference of the handling between different types of transactions and different versions of postgres?

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  1. Editorial Team

    Best I’m aware all of these commands are transaction aware, except for TRUNCATE ... RESTART IDENTITY (and even that one is transactional since 9.1.)

    See the manual on concurrency control and transaction-related commands.

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