Follow https://github.com/apache/doris/pull/25302, and use the unified jni framework to refactor java udaf.
This PR has removed the old interfaces to run java udf/udaf. Thanks to the ease of use of the new framework, the core code for modifying UDAF does not exceed 100 lines, and the logic is similar to that of UDF.
Use the unified jni framework to refactor java udf.
The unified jni framework takes VectorTable as the container to transform data between c++ and java, and hide the details of data format conversion.
In addition, the unified framework supports complex and nested types.
The performance of basic types remains consistent, with a 30% improvement in string types and an order of magnitude improvement in complex types.
eg: udf('asd'), this need return a const column, otherwise will be failed use the return column as other function params.
mysql> select concat('a', 'b', cuuid9('a'), ':c');
ERROR 1105 (HY000): errCode = 2, detailMessage = (10.16.10.6)[CANCELLED][INTERNAL_ERROR]const check failed, expr=VectorizedFn[VectorizedFnCallconcat]{
VLiteral (name = String, type = String, value = (a)),
VLiteral (name = String, type = String, value = (b)),
VectorizedFn[VectorizedFnCallcuuid9]
{ VLiteral (name = String, type = String, value = (a))},
VLiteral (name = String, type = String, value = (:c))}
Currently, there are some useless includes in the codebase. We can use a tool named include-what-you-use to optimize these includes. By using a strict include-what-you-use policy, we can get lots of benefits from it.
add a defer in fold constant to close.
add more type when call _get_result function in fold constant.3.
fix in can't handle null. eg:select 1 in (2, NULL, 1);
in java udf jni_ctx will be nullptr, so call close will be core dump.
Describe your changes.
This feature is propsoed in [DSIP-1](https://cwiki.apache.org/confluence/display/DORIS/DSIP-001%3A+Java+UDF).
This PR support fixed-length input and output Java UDF. Phase I in DIP-1 is done after this PR.
To support Java UDF effeciently, I use no data copy in JNI call and all compute operations are off-heap in Java.
To achieve that, I use a UdfExecutor instead.
For users, a UDF class must have a public evaluate method.
