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https://issues.apache.org/jira/browse/GEODE-7728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17030604#comment-17030604
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ASF subversion and git services commented on GEODE-7728:
--------------------------------------------------------
Commit 6e35c201ea605075433203d4e64ca887bafd8fcb in geode's branch
refs/heads/develop from Juan José Ramos
[ https://gitbox.apache.org/repos/asf?p=geode.git;h=6e35c20 ]
GEODE-7728: Fix Assertion Failures in OQL (#4639)
- Added unit and integration tests.
- Back off from the single index optimisation during join queries if
we can't find the (single) best filter, allowing the regular
execution to continue and use multiple indexes.
- If there are multiple indexes, add the filter evaluable operand at
the beginning of the internal list to evaluate it first in the chain.
> org.apache.geode.InternalGemFireError: ERROR: Assertion failed
> --------------------------------------------------------------
>
> Key: GEODE-7728
> URL: https://issues.apache.org/jira/browse/GEODE-7728
> Project: Geode
> Issue Type: Bug
> Components: querying
> Reporter: Juan Ramos
> Assignee: Juan Ramos
> Priority: Major
> Labels: GeodeCommons
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> When trying to run a simple equi-join query (both fields are indexed) with
> additional filters on a single region, the execution fails with the following
> exception:
> {noformat}
> org.apache.geode.InternalGemFireError: ERROR: Assertion failed: ' '
> at
> org.apache.geode.cache.query.internal.Support.assertionFailed(Support.java:76)
> at org.apache.geode.cache.query.internal.Support.Assert(Support.java:65)
> at org.apache.geode.cache.query.internal.Support.Assert(Support.java:46)
> at
> org.apache.geode.cache.query.internal.AbstractGroupOrRangeJunction.filterEvaluate(AbstractGroupOrRangeJunction.java:150)
> at
> org.apache.geode.cache.query.internal.CompiledJunction.filterEvaluate(CompiledJunction.java:190)
> at
> org.apache.geode.cache.query.internal.CompiledSelect.evaluate(CompiledSelect.java:538)
> at
> org.apache.geode.cache.query.internal.CompiledSelect.evaluate(CompiledSelect.java:53)
> at
> org.apache.geode.cache.query.internal.DefaultQuery.executeUsingContext(DefaultQuery.java:432)
> at
> org.apache.geode.cache.query.internal.DefaultQuery.execute(DefaultQuery.java:267)
> at
> org.apache.geode.cache.query.internal.DefaultQuery.execute(DefaultQuery.java:199)
> {noformat}
> The problem seems to be that, in order to optimise the execution for a more
> general form of join queries, we fail to find the "optimal" filter on which
> to operate and, thus, the exception is thrown.
> The problem is not reproducible whenever one of the fields used for the
> comparison is not indexed, or when both indexes are passed to the query
> engine using the *HINT* keyword.
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