[CALCITE-4130] Aggregation function in order by clause will throw exception in elasticsearch adapter

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.25.0
• Component/s: elasticsearch-adapter
• Labels: pull-request-available
• Assignee: Unassigned
• Reporter: yuqi
• Created: 18/Jul/20 15:15
• Updated: 22/Aug/20 22:21

Description

For sql like

select id, count(id) from test group by id order by count(id)

When execute query, `ElasticsearchTable#aggregate` will throw exception like

 Caused by: java.lang.IllegalArgumentException: Field EXPR$1 not defined for aggs

Reproduce:

Add test as below in AggregationTest
CalciteAssert.that()
        .with(newConnectionFactory())
        .query("select cat2, count(cat2) from view group by cat2 order by count(cat2)")
        .returnsUnordered("cat2=g; EXPR$1=2",
            "cat2=h; EXPR$1=1");

result:

Caused by: java.lang.IllegalArgumentException: Field EXPR$1 not defined for aggs
	at org.apache.calcite.adapter.elasticsearch.ElasticsearchMapping.missingValueFor(ElasticsearchMapping.java:84)
	at org.apache.calcite.adapter.elasticsearch.ElasticsearchTable.aggregate(ElasticsearchTable.java:235)
	at org.apache.calcite.adapter.elasticsearch.ElasticsearchTable.find(ElasticsearchTable.java:130)
	at org.apache.calcite.adapter.elasticsearch.ElasticsearchTable.access$000(ElasticsearchTable.java:70)
	at org.apache.calcite.adapter.elasticsearch.ElasticsearchTable$ElasticsearchQueryable.find(ElasticsearchTable.java:411)
	at Baz.bind(Unknown Source)
	at org.apache.calcite.jdbc.CalcitePrepare$CalciteSignature.enumerable(CalcitePrepare.java:355)
	at org.apache.calcite.jdbc.CalciteConnectionImpl.enumerable(CalciteConnectionImpl.java:315)
	at org.apache.calcite.jdbc.CalciteMetaImpl._createIterable(CalciteMetaImpl.java:507)
	at org.apache.calcite.jdbc.CalciteMetaImpl.createIterable(CalciteMetaImpl.java:498)
	at org.apache.calcite.avatica.AvaticaResultSet.execute(AvaticaResultSet.java:182)
	at org.apache.calcite.jdbc.CalciteResultSet.execute(CalciteResultSet.java:64)
	at org.apache.calcite.jdbc.CalciteResultSet.execute(CalciteResultSet.java:43)
	at org.apache.calcite.avatica.AvaticaConnection$1.execute(AvaticaConnection.java:667)
	at org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(CalciteMetaImpl.java:567)
	at org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:675)
	at org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:156)
	... 68 more

till now, this problem can only be found in elasticsearch adapter

Issue Links

• links to: GitHub Pull Request #2075