SPI_prepare_params — prepare a statement, without executing it yet
SPIPlanPtr SPI_prepare_params(const char *command, ParserSetupHookparserSetup, void *parserSetupArg, intcursorOptions)
   SPI_prepare_params creates and returns a prepared
   statement for the specified command, but doesn't execute the command.
   This function is equivalent to SPI_prepare_cursor,
   with the addition that the caller can specify parser hook functions
   to control the parsing of external parameter references.
  
const char * commandcommand string
ParserSetupHook parserSetupParser hook setup function
void * parserSetupArg
      pass-through argument for parserSetup
     
int cursorOptionsinteger bit mask of cursor options; zero produces default behavior
   SPI_prepare_params has the same return conventions as
   SPI_prepare.