benkrug opened a new issue #11155: URL: https://github.com/apache/druid/issues/11155
Trying to look into [11150](https://github.com/apache/druid/issues/11150), I got different results, but the results were very inconsistent. Here are some examples of wrong results. I'm not sure what the pattern is, so I tried different combinations, a laundry list follows. This was done on 0.20.0. I used wikipedia, and a lookup with keys 0-5 and values 0,1,null, and a table with 10 rows, dimensions 1-10 and metrics 1-10. wikipedia has 24,433 rows. starting with just wikipedia: `select * from wikipedia t1 left outer join (select * from wikipedia where sum_added = 1) t2 on t1.sum_added = t2.sum_added -- returns 1 row, with the right-hand side all null` but `select count(*) from wikipedia t1 left outer join (select * from wikipedia where sum_added = 1) t2 on t1.sum_added = t2.sum_added -- returns 423,225` selecting a couple of columns, instead of *, works: `select t1.sum_added, t2.sum_added from wikipedia t1 left outer join (select * from wikipedia where sum_added=1) t2 on t1.sum_added=t2.sum_added - returns 24,433 rows` trying to join with the lookup, joining on the key works: `select * from wikipedia left outer join lookup.myLookup on sum_added=k -- 24,433 results` but joining on the value gives an error: `select * from wikipedia left outer join lookup.myLookup on sum_added=v -- unknown exception, unknown type[class java.util.ArrayList] org.apache.druid.java.util.common.parsers.parseException` joining to my small "regular" table behaves the same as the joins to subqueries on wikipedia: `--select * from wikipedia left outer join oneToTen on sum_added=myDim -- one row, right side all null` `--select count(*) from wikipedia left outer join oneToTen on sum_added=myDim -- 24,433` joining on the metric gives an error: `select * from wikipedia left outer join oneToTen on sum_added=myMetric -- unsupported operation / java.lang.UnsupportedException` naming all the columns, instead of giving \*, also gives 1 result: `--SELECT wikipedia.__time, channel, cityName, comment, "count", countryIsoCode, countryName, diffUrl, flags, isAnonymous, isMinor, isNew, isRobot, isUnpatrolled, metroCode, namespace, page, regionIsoCode, regionName, sum_added, sum_commentLength, sum_deleted, sum_delta, sum_deltaBucket, "user", oneToTen.__time, myDim, myMetric --FROM wikipedia LEFT OUTER JOIN oneToTen ON sum_added = myDim -- 1 result` Naming just the wikipedia columns, not selecting from oneToTen, gives 24,433 results: `--SELECT wikipedia.__time, channel, cityName, comment, "count", countryIsoCode, countryName, diffUrl, flags, isAnonymous, isMinor, isNew, isRobot, isUnpatrolled, metroCode, namespace, page, regionIsoCode, regionName, sum_added, sum_commentLength, sum_deleted, sum_delta, sum_deltaBucket, "user" --FROM wikipedia LEFT OUTER JOIN oneToTen ON sum_added = myDim -- 24,433 results` Selecting wikipedia.* give 2,310 results! `ELECT wikipedia.* from wikipedia join oneToTen on sum_added = myDim - 2,310 results!` Not sure what's going on here. I'll attach an ingestion spec for oneToTen. myLookup is just a map lookup, with the following values: ``` { "1": "0", "2": "1", "3": "0", "4": null, "5": "0" } ``` [ingest10data.txt](https://github.com/apache/druid/files/6362990/ingest10data.txt) [ingest10spec.txt](https://github.com/apache/druid/files/6362991/ingest10spec.txt) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
