jcamachor commented on a change in pull request #831: HIVE-22238 pkfk
URL: https://github.com/apache/hive/pull/831#discussion_r341456163
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File path: ql/src/java/org/apache/hadoop/hive/ql/stats/StatsUtils.java
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@@ -1961,6 +1961,7 @@ public static void updateStats(Statistics stats, long
newNumRows,
newDV = (long) Math.ceil(ratio * oldDV);
}
cs.setCountDistint(newDV);
+ cs.setFilterColumn();
Review comment:
Apparently `public static void updateStats` is called for joins too. Should
we limit setting this column to filter operators (we could pass in the context
whether this is applicable or not)?
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