somu-imply commented on code in PR #14237:
URL: https://github.com/apache/druid/pull/14237#discussion_r1190243551
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processing/src/main/java/org/apache/druid/segment/join/JoinableFactoryWrapper.java:
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@@ -178,15 +183,37 @@ static JoinClauseToFilterConversion convertJoinToFilter(
}
numValues -= columnValuesWithUniqueFlag.getColumnValues().size();
- filters.add(Filters.toFilter(new InDimFilter(leftColumn,
columnValuesWithUniqueFlag.getColumnValues())));
+ // For each column value which are received in order we increment the
index
+ // and add it in the appropriate index in the map
+ int c = 0;
+ for (String val : columnValuesWithUniqueFlag.getColumnValues()) {
Review Comment:
I see, I introduced the orderedSet to ensure the values lineup in order, but
using duplicate values I could see the issue. Without using the linkedSet if I
use unique non-sorted values in the input they also do not line up as for the
TreeSet creating the wrong filters. I agree that we should limit the
optimization as you suggested
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