SPI_cursor_fetch
Name
SPI_cursor_fetch -- fetch some rows from a cursor
Synopsis
void SPI_cursor_fetch(Portal portal, bool forward, int count)
Description
   SPI_cursor_fetch fetches some rows from a
   cursor.  This is equivalent to the SQL command FETCH.
  
Arguments
- Portal portal
-       portal containing the cursor
      
- bool forward
-       true for fetch forward, false for fetch backward
      
- int count
-       maximum number of rows to fetch
      
Return Value
   SPI_processed and
   SPI_tuptable are set as in
   SPI_execute if successful.