# man > DISCARD(7)

[DISCARD(7)](https://www.chedong.com/phpMan.php/man/DISCARD/7/markdown)                         PostgreSQL 14.23 Documentation                         [DISCARD(7)](https://www.chedong.com/phpMan.php/man/DISCARD/7/markdown)



## NAME
       DISCARD - discard session state

## SYNOPSIS
       DISCARD { ALL | PLANS | SEQUENCES | TEMPORARY | TEMP }

## DESCRIPTION
       **DISCARD** releases internal resources associated with a database session. This command is
       useful for partially or fully resetting the session's state. There are several subcommands to
       release different types of resources; the **DISCARD** **ALL** variant subsumes all the others, and
       also resets additional state.

## PARAMETERS
       PLANS
           Releases all cached query plans, forcing re-planning to occur the next time the
           associated prepared statement is used.

       SEQUENCES
           Discards all cached sequence-related state, including **currval()**/**lastval()** information and
           any preallocated sequence values that have not yet been returned by **nextval()**. (See
           CREATE SEQUENCE (**CREATE**___**[SEQUENCE**(7)](https://www.chedong.com/phpMan.php/man/SEQUENCE/7/markdown)) for a description of preallocated sequence values.)

       TEMPORARY or TEMP
           Drops all temporary tables created in the current session.

       ALL
           Releases all temporary resources associated with the current session and resets the
           session to its initial state. Currently, this has the same effect as executing the
           following sequence of statements:

               CLOSE ALL;
               SET SESSION AUTHORIZATION DEFAULT;
               RESET ALL;
               DEALLOCATE ALL;
               UNLISTEN *;
               SELECT pg_advisory_unlock_all();
               DISCARD PLANS;
               DISCARD TEMP;
               DISCARD SEQUENCES;

## NOTES
       **DISCARD** **ALL** cannot be executed inside a transaction block.

## COMPATIBILITY
       **DISCARD** is a PostgreSQL extension.



PostgreSQL 14.23                                2026                                      [DISCARD(7)](https://www.chedong.com/phpMan.php/man/DISCARD/7/markdown)