We use the gcp profiler to get this kind of info.
I'm torn, because on one hand it is handy to be able to have such
information in the metrics system. But on the other hand you are kind
of adding in extra profiling stuff when there are other profiling
tools out there.
As another example would we
Hey,
I wonder if we add a metric which shows query column decompression time,
does it make sense? When a segment is loaded by the Historical node into
memory the Historical has to decompress columns before filtering and
aggregation, and I don't have any information about how much the
Hey all,
Druid currently executes UNION ALL queries sequentially (
https://github.com/apache/incubator-druid/blob/master/sql/src/main/java/org/apache/druid/sql/calcite/rel/DruidUnionRel.java#L98).
There's a comment in that method that restates this, but does not explain
why. Is there a reason why
Hey,
*Segment Metadata* query doesn't return information about bitmap type
(concise/roaring), I wonder if we would like to add it here:
"author": {
"type": "STRING",
"hasMultipleValues": false,
"size": 555,
"cardinality": 2,
"minValue": "",
