SQLite Forum

Interpreting output from showdb
I'm guessing that you are not showing us the complete showdb output, but just
the part that has you confused.  I'm guessing that there was a prior entry
about "page 128 used multiple times".  Probably page 128 appears twice in the
same btree, or in two separate btrees.  Overflow entries on that page are
thus used twice.

Your patch appears to be a no-op.  You are setting "`zPageUse[pgno] = 0;`"
immediately prior to "`zPageUse[pgno] = zMsg;`".  I would expect that an 
optimizing C compiler would recognize that the new statement does nothing
and hence omit it from the generated code.  Am I missing something?