Uyini umehluko omkhulu phakathi kwe-ORC neParquet?
Womabili amafomethi wefayela anekholomu ngokusekelwa okufanayo kokufaka amakhodi nokucindezela. Umehluko wabo oyinhloko uwukuthi idatha ehlanganisiwe imelelwa kanjani. EParquet, idatha efakwe ngaphakathi ihlukaniswe yaba amakholomu ane-metadata eyengeziwe ukuze kwakhiwe kabusha isakhiwo sokufaka. E-ORC, izakhiwo ezihlanganisiwe azihlukaniswa zibe amakholomu. Kunalokho inani ledatha elihlanganisiwe ligcinwa njengenani lekholomu elijwayelekile.