func (s *RaftServer) runContinuousQuery(db string, query *parser.SelectQuery, start time.Time, end time.Time) {
adminName := s.clusterConfig.GetClusterAdmins()[0]
clusterAdmin := s.clusterConfig.GetClusterAdmin(adminName)
intoClause := query.GetIntoClause()
targetName := intoClause.Target.Name
queryString := query.GetQueryStringWithTimesAndNoIntoClause(start, end)
f := func(series *protocol.Series) error {
return s.coordinator.InterpolateValuesAndCommit(query.GetQueryString(), db, series, targetName, true)
}
writer := NewContinuousQueryWriter(f)
s.coordinator.RunQuery(clusterAdmin, db, queryString, writer)
}
// Create and return a new JoinEngine given the shards that will be
// processed and the query
func NewJoinEngine(shards []uint32, query *parser.SelectQuery, next Processor) Processor {
tableNames := query.GetFromClause().Names
name := query.GetFromClause().GetString()
log4go.Debug("NewJoinEngine: shards=%v, query=%s, next=%s, tableNames=%v, name=%s",
shards, query.GetQueryString(), next.Name(), tableNames, name)
joinEngine := &JoinEngine{
next: next,
name: name,
tablesState: make([]joinEngineState, len(tableNames)),
tableIdx: make(map[string]int, len(tableNames)),
query: query,
pts: 0,
}
for i, tn := range tableNames {
alias := tn.GetAlias()
joinEngine.tablesState[i] = joinEngineState{}
joinEngine.tableIdx[alias] = i
}
mergeEngine := NewCommonMergeEngine(shards, false, query.Ascending, joinEngine)
return mergeEngine
}
