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https://issues.apache.org/jira/browse/CALCITE-4417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17237872#comment-17237872
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Alexander Staubo commented on CALCITE-4417:
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Same result with 1.25.0. As for using a function like upper(), that throws:
{code:java}
Translation of UPPER(ITEM($0, 'department._ref')) is not supported by
ElasticsearchProject
{code}
> "Two non-abstract methods ... have the same parameter types"
> ------------------------------------------------------------
>
> Key: CALCITE-4417
> URL: https://issues.apache.org/jira/browse/CALCITE-4417
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.26.0
> Environment: {code:java}
> $ java -version
> openjdk version "11.0.9" 2020-10-20
> OpenJDK Runtime Environment (build 11.0.9+11)
> OpenJDK 64-Bit Server VM (build 11.0.9+11, mixed mode)
> $ git rev-parse HEAD
> cfa37c3fd6ae18894035721d9f1eacde40e6b268
> {code}
> Reporter: Alexander Staubo
> Priority: Major
> Attachments: build.out, error.out
>
>
> I'm trying out the Elasticsearch adapter. My query:
> {code:java}
> select p._MAP['id'] as id, d._MAP['id'] as dept
> from "test_person" p
> join "test_department" d on d._MAP['id'] = p._MAP['department._ref']
> where p._MAP['department._ref'] is not null
> limit 1;
> {code}
> This fails with:
> {code:java}
> Error while compiling generated Java code: [...]
> Caused by: org.codehaus.janino.InternalCompilerException: Compiling "Baz":
> Two non-abstract methods "public int Baz$4.compare(java.lang.Object,
> java.lang.Object)" have the same parameter types, declaring type and return
> type
> {code}
> Full debug output: [^error.out]
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