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Posted to issues@ignite.apache.org by "Maxim Muzafarov (Jira)" <ji...@apache.org> on 2019/10/08 11:25:00 UTC
[jira] [Updated] (IGNITE-11839) SQL: table join order changes may
lead to incorrect result
[ https://issues.apache.org/jira/browse/IGNITE-11839?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Maxim Muzafarov updated IGNITE-11839:
-------------------------------------
Fix Version/s: (was: 2.8)
2.9
> SQL: table join order changes may lead to incorrect result
> ----------------------------------------------------------
>
> Key: IGNITE-11839
> URL: https://issues.apache.org/jira/browse/IGNITE-11839
> Project: Ignite
> Issue Type: Bug
> Components: sql
> Affects Versions: 2.7
> Reporter: Roman Kondakov
> Priority: Major
> Fix For: 2.9
>
>
> Under some circumstances table join order changes may lead to incorrect result. For example if one of joining tables is {{REPLICATED}} and another has {{queryparallelism > 1}}.
> This problem can be reproduced in test {{IgniteSqlSegmentedIndexSelfTest#testSegmentedPartitionedWithReplicated}} if swap tables {{Person}} and {{Organization}} in the method {{IgniteSqlSegmentedIndexSelfTest#checkLocalQueryWithSegmentedIndex}} and set {{enforceJoinOrder}} flag to {{true}}:
> {code:java}
> String select0 = "select o.name n1, p.name n2 from \"org\".Organization o, \"pers\".Person p where p.orgId = o._key";
> List<List<?>> res = c1.query(new SqlFieldsQuery(select0).setLocal(true).setEnforceJoinOrder(true)).getAll();
> {code}
> Result is:
> {noformat}
> java.lang.AssertionError:
> Expected :956
> Actual :8
> <Click to see difference>
> at org.junit.Assert.fail(Assert.java:88)
> at org.junit.Assert.failNotEquals(Assert.java:743)
> at org.junit.Assert.assertEquals(Assert.java:118)
> at org.junit.Assert.assertEquals(Assert.java:555)
> at org.junit.Assert.assertEquals(Assert.java:542)
> at org.apache.ignite.testframework.junits.JUnitAssertAware.assertEquals(JUnitAssertAware.java:89)
> at org.apache.ignite.internal.processors.query.IgniteSqlSegmentedIndexSelfTest.checkLocalQueryWithSegmentedIndex(IgniteSqlSegmentedIndexSelfTest.java:280)
> at org.apache.ignite.internal.processors.query.IgniteSqlSegmentedIndexSelfTest.testSegmentedPartitionedWithReplicated(IgniteSqlSegmentedIndexSelfTest.java:222)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
> at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
> at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> at org.apache.ignite.testframework.junits.GridAbstractTest$6.run(GridAbstractTest.java:2145)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
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