kgyrtkirk commented on a change in pull request #1031:
URL: https://github.com/apache/hive/pull/1031#discussion_r434511996
##########
File path: common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
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@@ -2495,19 +2495,22 @@ private static void
populateLlapDaemonVarsSet(Set<String> llapDaemonVarsSetLocal
HIVE_OPTIMIZE_BI_REWRITE_COUNTDISTINCT_ENABLED("hive.optimize.bi.rewrite.countdistinct.enabled",
true,
"Enables to rewrite COUNT(DISTINCT(X)) queries to be rewritten to use
sketch functions."),
- HIVE_OPTIMIZE_BI_REWRITE_COUNT_DISTINCT_SKETCH(
- "hive.optimize.bi.rewrite.countdistinct.sketch", "hll",
+
HIVE_OPTIMIZE_BI_REWRITE_COUNT_DISTINCT_SKETCH("hive.optimize.bi.rewrite.countdistinct.sketch",
"hll",
new StringSet("hll"),
Review comment:
about enabling other sketches for count-distinct: I think they should
just work - however they might need a little testing; probably more important
would be to provide some way to change sketch construction
parameters...actually for our rewrites the sketch type could be considered as
part of the parameters
opened: HIVE-23600
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