Provided by: postgresql-doc-11_11.5-1_all bug

NAME

       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

       SPIPlanPtr plan
           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.