SPI_getargcount
SPI_getargcount
   SPI_getargcount - return the number of arguments needed by a statement
  prepared by
   
    SPI_prepare
   
  
Synopsis
int SPI_getargcount(SPIPlanPtr plan)
 Description
   
    SPI_getargcount
   
   returns the number of arguments needed
   to execute a statement prepared by
   
    SPI_prepare
   
   .
  
Arguments
- 
     
      SPIPlanPtrplan
- 
     prepared statement (returned by SPI_prepare)
Return Value
   The count of expected arguments for the
   
    
     plan
    
   
   .
    If the
   
    
     plan
    
   
   is
   
    NULL
   
   or invalid,
   
    SPI_result
   
   is set to
   
    SPI_ERROR_ARGUMENT
   
   and -1 is returned.