Maitiro ekufambisa, kurodha uye kubatanidza yakakura kwazvo data zvakachipa uye nekukurumidza? Chii chinonzi pushdown optimization?
Chero kushanda kukuru kwedata kunoda simba rakawanda rekombuta. Kufamba kwe data kubva kudhatabhesi kuenda kuHadoop kunogona kutora mavhiki kana kudhura zvakanyanya sebapiro rendege. Haudi kumirira uye kushandisa mari? Balance mutoro pamapuratifomu akasiyana. Imwe nzira ndeye pushdown optimization. Ndakakumbira murairidzi anotungamira weRussia wekusimudzira uye kutonga kweInformatica zvigadzirwa, Alexey Ananyev, kuti ataure nezve […]