| PostgreSQL 8.2.23 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.