Hello OK> The result consists of 4 rows, in the following order: OK> "1" "AB" OK> "4" "AB" OK> "2" "CD" OK> "5" "CD"
OK> Especially you can see that the result is sorted by column 'y'. OK> This is reproducible and I can't understand that. OK> When you remove the index ix_t1_y, the results are more comprehensible: OK> "1" "AB" OK> "2" "CD" OK> "4" "AB" OK> "5" "CD" OK> So the sorting is connected to the existence of the index, I guess. OK> Is this expected behavior or a bug? Without an ORDER BY clause, you can't expect or rely on any particular ordering. Swithun.
