mudhorn/prometheus
1
0
Fork 0
mirror of https://github.com/prometheus/prometheus.git synced 2024-09-19 23:37:31 -07:00
Code Issues Actions 7 Packages Projects Releases Wiki Activity

In case of empty query results, return an empty matrix.

Browse source
This commit is contained in:
Julius Volz 2013-03-25 12:14:48 +01:00
parent 43a7ccd5be
commit 3880a86c9c
1 changed files with 4 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
rules/ast/ast.go
View file

@ -257,16 +257,18 @@ func labelsToKey(labels model.Metric) string {
func EvalVectorInstant(node VectorNode, timestamp time.Time) (vector Vector) {
viewAdapter, err := viewAdapterForInstantQuery(node, timestamp)
if err != nil {
// TODO: propagate errors.
return
}
return node.Eval(&timestamp, viewAdapter)
}
func EvalVectorRange(node VectorNode, start time.Time, end time.Time, interval time.Duration) (matrix Matrix, err error) {
// Explicitly initialize to an empty matrix since a nil Matrix encodes to
// null in JSON.
matrix = Matrix{}
viewAdapter, err := viewAdapterForRangeQuery(node, start, end, interval)
if err != nil {
// TODO: propagate errors.
return
}
// TODO implement watchdog timer for long-running queries.