WHERE_UNIQUE     1447 ext/pdo_sqlite/sqlite/src/where.c       *pFlags = WHERE_ROWID_EQ | WHERE_UNIQUE;
WHERE_UNIQUE     1549 ext/pdo_sqlite/sqlite/src/where.c       flags |= WHERE_UNIQUE;
WHERE_UNIQUE     2116 ext/pdo_sqlite/sqlite/src/where.c   if( (andFlags & WHERE_UNIQUE)!=0 && ppOrderBy ){