GitHub user arunmahadevan opened a pull request:
https://github.com/apache/storm/pull/1899
STORM-2330: Fix storm sql code generation for UDAF with non standard sql
types
Storm-sql uses cacite's code generator. For UDAF with non standard return
types, the generated code does not compile.
E.g. For an UDAF that returns a List<T> cacite converts the return type to
SQL type "OTHER" and finally inserts a cast to Object[] in the returned code
which fails to compile with "java.lang.ClassCastException: java.util.ArrayList
cannot be cast to [Ljava.lang.Object;"
Use a custom type factory to return "ANY" as the type (instead of OTHER) if
the java type cannot be mapped to a sql type.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/arunmahadevan/storm STORM-2330
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/storm/pull/1899.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1899
----
commit 1d09d786fdbf61f634441e76e2c2a53c35178540
Author: Arun Mahadevan <[email protected]>
Date: 2017-01-27T06:49:18Z
STORM-2330: Fix storm sql code generation for UDAF with non standard sql
types
Storm-sql uses cacite's code generator. For UDAF with non standard return
types, the generated code does not compile.
E.g. For an UDAF that returns a List<T> cacite converts the return type to
SQL type "OTHER" and finally inserts a cast to Object[] in the returned code
which fails to compile with "java.lang.ClassCastException: java.util.ArrayList
cannot be cast to [Ljava.lang.Object;"
Use a custom type factory to return "ANY" as the type (instead of OTHER) if
the java type cannot be mapped to a sql type.
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