drop_aggregate.hlp

来自「关系型数据库 Postgresql 6.5.2」· HLP 代码 · 共 18 行

.pgaw:Help.f.t insert end "DROP AGGREGATE" {bold} " will remove all references to an existing aggregate definition. To execute this command the current user must be the owner of the aggregate. 

" {} "Synopsis" {bold} "

DROP AGGREGATE name type

" {} "Usage" {bold} "

To remove the myavg aggregate for type int4: 

DROP AGGREGATE myavg int4;

" {} "Notes" {bold} "

The DROP AGGREGATE statement is a Postgres language extension. 

Refer to the CREATE AGGREGATE statement to create aggregate functions. "