Defines a new access method.
CREATE ACCESS METHOD <name> TYPE <access_method_type> HANDLER <handler_function>
CREATE ACCESS METHOD creates a new access method.
The access method name must be unique within the database.
Only superusers can define new access methods.
INDEXtypes are supported at present.
internal, and its return type depends on the type of access method; for
TABLEaccess methods, it must be
INDEXaccess methods, it must be
index_am_handler. The C-level API that the handler function must implement varies depending on the type of access method. The table access method API is described in Table Access Method Interface Definition in the PostgreSQL documentation. The index access method API is described in Index Access Method Interface Definition.
Create an index access method
heptree with handler function
CREATE ACCESS METHOD heptree TYPE INDEX HANDLER heptree_handler;
CREATE ACCESS METHOD is a Greenplum Database extension.
DROP ACCESS METHOD, CREATE OPERATOR CLASS, CREATE OPERATOR FAMILY
Parent topic: SQL Commands