NULL_ALWAYS_DISTINCT 446 ext/sqlite/libsqlite/src/select.c #if NULL_ALWAYS_DISTINCT NULL_ALWAYS_DISTINCT 466 ext/sqlite/libsqlite/src/select.c sqliteVdbeAddOp(v, OP_MakeRecord, nColumn, NULL_ALWAYS_DISTINCT); NULL_ALWAYS_DISTINCT 493 ext/sqlite/libsqlite/src/select.c addr = sqliteVdbeAddOp(v, OP_MakeRecord, nColumn, NULL_ALWAYS_DISTINCT);