SPI_keepplan — save a prepared statement
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 procedure in the current session.
the prepared statement to be saved
0 on success;
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.
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