Jacek Bartosiak o sytuacji Polski w obliczu wojny na Ukrainie

https://www.youtube.com/watch?v=QVpSi2r9Rn4 – swietny wyklad/dyskusja, bez emocji i bez zadecia. na dodatek: https://www.youtube.com/watch?v=VDKJWEcMCeI – Lech Jęczmyk – USA dziś – Szeryf Świata czy Imperium Zła? https://www.youtube.com/watch?v=Kg2IvCh4lnM – Grzegorz Braun: Czy znów idziemy na wojnę? https://www.youtube.com/watch?v=ipubiPXLb8g, https://www.youtube.com/watch?v=u5hckFKFfB0 – Jacek Bartosiak – o sytuacji Polski i Świata

UNION instead of OR in MySQL

i have MySQL that is run on arrays of increasing size: i remembered that the query optimizer will not be able to use existing indices for lastModified columns but.. the query execution time was acceptable, so i did not bother. recently much more data was added and query above, repeated quite often, caused a lot ... Read More


i’ve sepnt two August/September weeks traveling with my parents from Dubrovnik via Sarajevo and Zagreb to Budapest. short brain-dump with hiking maps follows.