[jira] [Created] (IGNITE-13727) Calcite bug. Assertion on UNION with DISTINCT.

["Stanilovsky Evgeny (Jira)" <ji...@apache.org>]

Stanilovsky Evgeny created IGNITE-13727:
-------------------------------------------

             Summary: Calcite bug. Assertion on UNION with DISTINCT.
                 Key: IGNITE-13727
                 URL: https://issues.apache.org/jira/browse/IGNITE-13727
             Project: Ignite
          Issue Type: Bug
          Components: sql
    Affects Versions: 2.9
            Reporter: Stanilovsky Evgeny


{noformat}
SELECT distinct(name) FROM Orders UNION SELECT name from Account{noformat}
breaks Calcite with assertion:

{noformat}
java.lang.AssertionError: traits=IGNITE.[].any.one-way, distributionhash[0]
	at org.apache.calcite.rel.core.Exchange.<init>(Exchange.java:62)
	at org.apache.calcite.rel.core.Exchange.<init>(Exchange.java:71)
	at org.apache.ignite.internal.processors.query.calcite.rel.IgniteTrimExchange.<init>(IgniteTrimExchange.java:49)
	at SC.apply(Unknown Source)
	at org.apache.ignite.internal.processors.query.calcite.externalize.RelJson$RelFactory.apply(RelJson.java:115)
	at org.apache.ignite.internal.processors.query.calcite.externalize.RelJsonReader.readRel(RelJsonReader.java:111)
	at org.apache.ignite.internal.processors.query.calcite.externalize.RelJsonReader.readRels(RelJsonReader.java:103)
	at org.apache.ignite.internal.processors.query.calcite.externalize.RelJsonReader.read(RelJsonReader.java:92)
	at org.apache.ignite.internal.processors.query.calcite.externalize.RelJsonReader.fromJson(RelJsonReader.java:77)
	at org.apache.ignite.internal.processors.query.calcite.exec.ExecutionServiceImpl.prepareFragment(ExecutionServiceImpl.java:522)
	at org.apache.ignite.internal.processors.query.calcite.prepare.QueryPlanCacheImpl.queryPlan(QueryPlanCacheImpl.java:84)
	at org.apache.ignite.internal.processors.query.calcite.exec.ExecutionServiceImpl.onMessage(ExecutionServiceImpl.java:860)
	at org.apache.ignite.internal.processors.query.calcite.exec.ExecutionServiceImpl.lambda$init$1(ExecutionServiceImpl.java:435)
	at org.apache.ignite.internal.processors.query.calcite.message.MessageServiceImpl.onMessageInternal(MessageServiceImpl.java:276)
	at org.apache.ignite.internal.processors.query.calcite.message.MessageServiceImpl.lambda$onMessage$0(MessageServiceImpl.java:256)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
{noformat}

appropriate plan:

{noformat}
IgniteReduceAggregate(rowType=[RecordType(JavaType(class java.lang.String) NAME)], group=[{0}]): rowcount = 110.0, cumulative cost = 6140.0, id = 244
  IgniteExchange(distribution=[single]): rowcount = 110.0, cumulative cost = 6030.0, id = 243
    IgniteMapAggregate(group=[{0}]): rowcount = 110.0, cumulative cost = 4710.0, id = 242
      IgniteUnionAll(all=[true]): rowcount = 1100.0, cumulative cost = 4600.0, id = 241
        IgniteTrimExchange(distribution=[hash[0]]): rowcount = 100.0, cumulative cost = 2500.0, id = 240
          IgniteReduceAggregate(rowType=[RecordType(JavaType(class java.lang.String) NAME)], group=[{0}]): rowcount = 100.0, cumulative cost = 2400.0, id = 239
            IgniteExchange(distribution=[broadcast]): rowcount = 100.0, cumulative cost = 2300.0, id = 238
              IgniteMapAggregate(group=[{0}]): rowcount = 100.0, cumulative cost = 1100.0, id = 237
                IgniteTableScan(table=[[PUBLIC, ORDERS]], requiredColunms=[{2}]): rowcount = 1000.0, cumulative cost = 1000.0, id = 65
        IgniteTableScan(table=[[PUBLIC, ACCOUNT]], requiredColunms=[{2}]): rowcount = 1000.0, cumulative cost = 1000.0, id = 97
{noformat}





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