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Dumindu Buddhika commented on PHOENIX-1705: ------------------------------------------- Hi [~jamestaylor], I have implemented a built in function for ARRAY_APPEND it is only intended for fixed length arrays for now. But I have got a problem. I wrote a simple test for the function created. its all in the patch file. but when I run the test I get an exception, but I cant seem to find the direct reason for this exception. Can you take a look at the code segment and tell me what you think? I must be doing something wrong(may be while appending the element to array). the exception is, java.lang.NullPointerException at org.apache.phoenix.schema.types.PArrayDataType.createPhoenixArray(PArrayDataType.java:624) at org.apache.phoenix.schema.types.PArrayDataType.toObject(PArrayDataType.java:263) at org.apache.phoenix.schema.types.PBinaryArray.toObject(PBinaryArray.java:67) at org.apache.phoenix.schema.types.PDataType.toObject(PDataType.java:996) at org.apache.phoenix.compile.ExpressionProjector.getValue(ExpressionProjector.java:75) at org.apache.phoenix.jdbc.PhoenixResultSet.getArray(PhoenixResultSet.java:182) at org.apache.phoenix.end2end.salted.ArrayAppendFunctionIT.testArray(ArrayAppendFunctionIT.java:57) Here ArrrayAppendFunctionIT is the simple test case I wrote. What I understood after looking for a while is this exception occurs since PArrayDataType.toObject method does not receive array type correctly So when it calls getByteSize of data type object it gets null. Regards, Dumindu. > implement ARRAY_APPEND built in function > ---------------------------------------- > > Key: PHOENIX-1705 > URL: https://issues.apache.org/jira/browse/PHOENIX-1705 > Project: Phoenix > Issue Type: Sub-task > Reporter: Dumindu Buddhika > Assignee: Dumindu Buddhika > Attachments: > PHOENIX-1705_implement_ARRAY_APPEND_built_in_function.patch > > -- This message was sent by Atlassian JIRA (v6.3.4#6332)