SPI_keepplan - save a prepared statement
int SPI_keepplan(SPIPlanPtr plan)
SPI_keepplan saves a passed statement (prepared by SPI_prepare) so
that it will not be freed by SPI_finish nor by the transaction manager.
This gives you the ability to reuse prepared statements in the subsequent
invocations of your C function in the current session.
SPIPlanPtr plan
the prepared statement to be saved
0 on success; SPI_ERROR_ARGUMENT if plan is NULL or invalid
The passed-in statement is relocated to permanent storage by means of pointer
adjustment (no data copying is required). If you later wish to delete it, use
SPI_freeplan on it.