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Posted to dev@calcite.apache.org by "Tim Nieradzik (Jira)" <ji...@apache.org> on 2022/11/30 08:48:00 UTC
[jira] [Created] (CALCITE-5407) MongoDB: Invalid ARRAY conversion
Tim Nieradzik created CALCITE-5407:
--------------------------------------
Summary: MongoDB: Invalid ARRAY conversion
Key: CALCITE-5407
URL: https://issues.apache.org/jira/browse/CALCITE-5407
Project: Calcite
Issue Type: Bug
Components: mongodb-adapter
Reporter: Tim Nieradzik
Assignee: Tim Nieradzik
When using the MongoDB adapter, the following conversion does not work as expected:
cast(_MAP['arr'] as VARCHAR ARRAY)
This throws the following exception:
```
Caused by: java.lang.NullPointerException: componentType of ITEM($0, 'arr')
at java.base/java.util.Objects.requireNonNull(Objects.java:347)
at org.apache.calcite.sql2rel.StandardConvertletTable.convertCast(StandardConvertletTable.java:603)
at org.apache.calcite.sql2rel.SqlNodeToRexConverterImpl.convertCall(SqlNodeToRexConverterImpl.java:59)
at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.visit(SqlToRelConverter.java:5547)
at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.visit(SqlToRelConverter.java:4711)
at org.apache.calcite.sql.SqlCall.accept(SqlCall.java:161)
at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.convertExpression(SqlToRelConverter.java:5360)
at org.apache.calcite.sql2rel.SqlToRelConverter.convertSelectList(SqlToRelConverter.java:4524)
at org.apache.calcite.sql2rel.SqlToRelConverter.convertSelectImpl(SqlToRelConverter.java:756)
at org.apache.calcite.sql2rel.SqlToRelConverter.convertSelect(SqlToRelConverter.java:677)
at org.apache.calcite.sql2rel.SqlToRelConverter.convertQueryRecursive(SqlToRelConverter.java:3741)
at org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:597)
at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:257)
at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:220)
at org.apache.calcite.prepare.CalcitePrepareImpl.prepare2_(CalcitePrepareImpl.java:651)
at org.apache.calcite.prepare.CalcitePrepareImpl.prepare_(CalcitePrepareImpl.java:517)
at org.apache.calcite.prepare.CalcitePrepareImpl.prepareSql(CalcitePrepareImpl.java:487)
at org.apache.calcite.jdbc.CalciteConnectionImpl.parseQuery(CalciteConnectionImpl.java:236)
at org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(CalciteMetaImpl.java:623)
at org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:677)
at org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:156)
... 67 more
```
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