id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE cl const PRIMARY, classification classification 767 const 1 Using temporary; Using filesort
1 SIMPLE oc ref PRIMARY, idcontent PRIMARY 5 const, const 1 Using where
1 SIMPLE c eq_ref PRIMARY PRIMARY 4 theatreok_dev.oc.idcontent 1 Using where
1 SIMPLE cc eq_ref PRIMARY, idclassification PRIMARY 8 theatreok_dev.oc.idcontent, const 1