如图，上述是select语句和其对应的query plan，我想问的是：结点7所对应的filter是"“filters”": “”[(T_OP_OR, (T_OP_AND, part.p_brand = ‘Brand#12’, part.p_container IN (‘SM CASE’, ‘SM BOX’, ‘SM PACK’, ‘SM PKG’), part.p_size <= 5), (T_OP_AND, part.p_brand = ‘Brand#23’, part.p_container IN (‘MED BAG’, ‘MED BOX’, ‘MED PKG’, ‘MED PACK’), part.p_size <= 10), (T_OP_AND, part.p_brand = ‘Brand#34’, part.p_container IN (‘LG CASE’, ‘LG BOX’, ‘LG PACK’, ‘LG PKG’), part.p_size <= 15))], [part.p_size >= 1]""可以看到整体其实是[filter1],[filter2]，其中出现了(T_OP_AND,filter1,filter2)，我想问这种形势是如何划分的，前者和后者有什么区别，[filter1],[filter2]中的逗号其实是AND的意思吗？
