Portal SPI_cursor_open_with_paramlist(const char *name,
                                      SPIPlanPtr plan,
                                      ParamListInfo params,
                                      bool read_only)   SPI_cursor_open_with_paramlist sets up a cursor
   (internally, a portal) that will execute a plan prepared by
   SPI_prepare.
   This function is equivalent to SPI_cursor_open
   except that information about the parameter values to be passed to the
   query is presented differently.  The ParamListInfo
   representation can be convenient for passing down values that are
   already available in that format.  It also supports use of dynamic
   parameter sets via hook functions specified in ParamListInfo.
  
The passed-in parameter data will be copied into the cursor's portal, so it can be freed while the cursor still exists.
name for portal, or NULL to let the system select a name
      execution plan (returned by SPI_prepare)
     
data structure containing parameter types and values; NULL if none
true for read-only execution