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 procedure in the current
session.
SPIPlanPtr planthe 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.
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