tabUsed          122859 ext/sqlite3/libsqlite/sqlite3.c     Bitmask tabUsed = exprListTableUsage(pMaskSet, pResultSet);
tabUsed          122860 ext/sqlite3/libsqlite/sqlite3.c     if( sWLB.pOrderBy ) tabUsed |= exprListTableUsage(pMaskSet, sWLB.pOrderBy);
tabUsed          122870 ext/sqlite3/libsqlite/sqlite3.c       if( (tabUsed & pLoop->maskSelf)!=0 ) break;