EvictAll removes all pl's stored in memory for given group.

GetOrCreate stores the List corresponding to key, if it's not there already.

GetOrUnmarshal takes a key, value and a groupID.

IndexTokens return tokens, without the predicate prefix and index rune.

Init initializes the posting lists package, the in memory and dirty list hash.

RebuildIndex rebuilds index for a given attribute.

RebuildReverseEdges rebuilds the reverse edges for a given attribute.

SyncMarkFor returns the synced watermark for the given RAFT group.

TypeID returns the typeid of destination vertex.

Add means add new element in mutation layer.

Del means delete in mutation layer.

Set means overwrite in mutation layer.

ErrNoValue would be returned if no value was found in the posting list.

ErrRetry can be triggered if the posting list got deleted from memory due to a hard commit.

ListOptions is used in List.Uids (in posting) to customize our output list of UIDs, for each posting list.