| PostgreSQL 8.2.6 Documentation | ||||
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SPI_prepare
can be used with
SPI_cursor_open
SPI_is_cursor_plan
returns
true
if a plan prepared by
SPI_prepare
can be passed as an argument to
SPI_cursor_open
, or
false
if that is not the case. The criteria are that the
plan
represents one single command and that this command returns tuples to the caller; for example,
SELECT
is allowed unless it contains an
INTO
clause, and
UPDATE
is allowed only if it contains a
RETURNING
clause.
true or false to indicate if the plan can produce a cursor or not, or SPI_ERROR_ARGUMENT if the plan is NULL