RESET

restore the value of a run-time parameter to the default value

English manual coverage begins with PostgreSQL 6.4. Source history and runtime observations have their own recorded version boundaries.

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6.4 6.5 7.0 7.1 7.2 7.3 7.4 8.0 8.1 8.2 8.3 8.4 9.0 9.1 9.2 9.3 9.4 9.5 9.6 10 11 12 13 14 15 16 17 18 19 20

anchor: SQL-RESET
file: sql-reset.html
lang: en
name: RESET
purpose: restore the value of a run-time parameter to the default value
purpose zh: 将一个运行时参数的值恢复为默认值
sections same as: Unknown
slug: 18
synopsis html: RESET <em class="replaceable"><code>configuration_parameter</code></em> RESET ALL
synopsis text: RESET configuration_parameter RESET ALL

Syntax

RESET configuration_parameter
RESET ALL

Syntax diagrams

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RESET · Syntax 2

Definition PG 18

RESET configuration_parameter
RESET ALL

Description

RESET restores run-time parameters to their default values. RESET is an alternative spelling for

SET configuration_parameter TO DEFAULT

Refer to SET for details.

The default value is defined as the value that the parameter would have had, if no SET had ever been issued for it in the current session. The actual source of this value might be a compiled-in default, the configuration file, command-line options, or per-database or per-user default settings. This is subtly different from defining it as “the value that the parameter had at session start”, because if the value came from the configuration file, it will be reset to whatever is specified by the configuration file now. See Chapter 19 for details.

The transactional behavior of RESET is the same as SET: its effects will be undone by transaction rollback.

Parameters

configuration_parameter: Name of a settable run-time parameter. Available parameters are documented in Chapter 19 and on the SET reference page.
ALL: Resets all settable run-time parameters to default values.

Examples

Set the timezone configuration variable to its default value:

RESET timezone;

Compatibility

RESET is a PostgreSQL extension.

Compare versions

Source references

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:2f0ae6834077d84d49e2a1e20e69d4fce6b96b616dbf3794f20ed50238408b16

Text language: en · wiki-repair-20261023:2f0ae6834077d84d49e2a1e20e69d4fce6b96b616dbf3794f20ed50238408b16