NewRequestContext creates RequestContext The default Mode is ReqNormal.

NewResultContext returns the result context.

ReqNormal mode will send the query to the backend which computed by the planner.

ReqScatter mode will send the RawQuery to all backends.

ReqSingle mode will send the RawQuery to the first normal backend which computed by the scatter, it is random sometimes.

TxnNone enum.

TxnRead enum.

TxnWrite enum.

QueryTuple tuple.

RequestContext tuple.

ResultContext tuple.

QueryTuples represents the query tuple slice.

RequestMode type.

TxnMode type.