tdigest_combine¶
Description¶
Combine (merge) multiple t-digest values together This function is purely an aggregate function.
Return type¶
tdigest
Domain¶
This is an aggregate function (aggregates rows over a group in aggregate verbs.)
This is a window function (calculates over a group of multiple input rows using windowing.)
Categories¶
Usage¶
tdigest_combine(inputExpr)
Argument |
Type |
Optional |
Repeatable |
Restrictions |
|---|---|---|---|---|
inputExpr |
tdigest |
no |
no |
none |
Examples¶
statsby state:tdigest_combine(tdigest_col), group_by(^Cluster...)
Combine tdigest values of tdigest_col (of type tdigest) into one tdigest state, per Cluster.