婘喙鄘婔婻 GIN 䘵嚘寙劆婔婻悇傺婘 key 婪䔇 B-tree 䘵嚘懟婔婻 key 噾䘵嚘唚(懫套昄䂇䔇婔婻噄䘹)䔇婔婻噄䘹幽婫認麯埽床釕婺䔇懟婔婻噄䂇襕幽滇毺劏幖毺鐽(PL, posting list)婪䔇 B-tree 䔇毺鐽襕幽嘷彖臘轿崘償䔇施唍滇婔婻幖毺鐽(PL, posting list)䔇彖臘㔗