pg_cursors

pg_cursors

The pg_cursors view lists the currently available cursors. Cursors can be defined in one of the following ways:

via the DECLARE SQL statement
via the Bind message in the frontend/backend protocol
via the Server Programming Interface (SPI)

Note

Greenplum Database does not support the definition, or access of, parallel retrieve cursors via SPI.

Cursors exist only for the duration of the transaction that defines them, unless they have been declared WITH HOLD. Non-holdable cursors are only present in the view until the end of their creating transaction.

Note

Greenplum Database does not support holdable parallel retrieve cursors.

name	type	description
`name`	text	The name of the cursor.
`statement`	text	The verbatim query string submitted to declare this cursor.
`is_holdable`	boolean	`true` if the cursor is holdable (that is, it can be accessed after the transaction that declared the cursor has committed); `false` otherwise. > Note Greenplum Database does not support holdable parallel retrieve cursors, this value is always `false` for such cursors.
`is_binary`	boolean	`true` if the cursor was declared `BINARY`; `false` otherwise.
`is_scrollable`	boolean	`true` if the cursor is scrollable (that is, it allows rows to be retrieved in a nonsequential manner); `false` otherwise. > Note Greenplum Database does not support scrollable cursors, this value is always `false`.
`creation_time`	timestamptz	The time at which the cursor was declared.
`is_parallel`	boolean	`true` if the cursor was declared `PARALLEL RETRIEVE`; `false` otherwise.

Parent topic: System Catalogs Definitions