SPI_keepplan
Name
SPI_keepplan -- save a prepared statement
Synopsis
int SPI_keepplan(SPIPlanPtr plan)
Description
   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.
  
Arguments
- SPIPlanPtr plan
-       the prepared statement to be saved
      
Return Value
   0 on success;
   SPI_ERROR_ARGUMENT if plan
   is NULL or invalid
  
Notes
   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.