DROP ACCESS METHOD

remove an access method

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

Reading PG 18·Select a recorded version

anchor: SQL-DROP-ACCESS-METHOD
file: sql-drop-access-method.html
lang: en
name: DROP ACCESS METHOD
purpose: remove an access method
purpose zh: 移除一个访问方法
sections same as: Unknown
slug: 18
synopsis html: DROP ACCESS METHOD [ IF EXISTS ] <em class="replaceable"><code>name</code></em> [ CASCADE | RESTRICT ]
synopsis text: DROP ACCESS METHOD [ IF EXISTS ] name [ CASCADE | RESTRICT ]

Syntax

DROP ACCESS METHOD [ IF EXISTS ] name [ CASCADE | RESTRICT ]

Syntax diagrams

Read left to right. Branches are choices, bypasses are optional, loops repeat. Select an underlined parameter to open its rule.

DROP ACCESS METHOD [ IF EXISTS ] name [ CASCADE | RESTRICT ]

DROP ACCESS METHOD removes an existing access method. Only superusers can drop access methods.

IF EXISTS: Do not throw an error if the access method does not exist. A notice is issued in this case.
name: The name of an existing access method.
CASCADE: Automatically drop objects that depend on the access method (such as operator classes, operator families, and indexes), and in turn all objects that depend on those objects (see Section 5.15).
RESTRICT: Refuse to drop the access method if any objects depend on it. This is the default.

Drop the access method heptree:

DROP ACCESS METHOD heptree;

DROP ACCESS METHOD is a PostgreSQL extension.

Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:c688e8c39340149b8747f946183987f0129057dcf1e57f17659e48fb41d45644

Text language: en · wiki-repair-20261023:c688e8c39340149b8747f946183987f0129057dcf1e57f17659e48fb41d45644