Small. Fast. Reliable.
Choose any three.
*** 162,167 ****
--- 162,170 ----
  pointing at a row of virtual table.  The xColumn and
  xRowid methods can be used to access that row.  The
  xNext method can be used to advance to the next row.
+ If the cursor is already pointing at the last row,
+ this routine returns 0 to indicate that no rows remain.
+ If there are results available this routine returns 1.
  
  ----
  *xNext*