Add new interfaces sqlite3_result_pointer(), and
sqlite3_value_pointer() and use them to transfer the eponymous FTS3 column
pointer to the snippet() and offsets() routines.  This changes is
inspired by check-in [72de49f2] but is new implementation, not a cherry-pick.

FossilOrigin-Name: f0f492245e957f5339c5aef02716321e45c18914b9a78387e4158f87fc2d83f9
6 files changed