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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-1875) implement ARRAY_PREPEND built in function
Date Tue, 05 May 2015 06:02:06 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-1875?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14527990#comment-14527990
] 

ASF GitHub Bot commented on PHOENIX-1875:
-----------------------------------------

Github user dumindux commented on a diff in the pull request:

    https://github.com/apache/phoenix/pull/79#discussion_r29645424
  
    --- Diff: phoenix-core/src/main/java/org/apache/phoenix/expression/function/ArrayPrependFunction.java
---
    @@ -0,0 +1,96 @@
    +/*
    + * Licensed to the Apache Software Foundation (ASF) under one
    + * or more contributor license agreements.  See the NOTICE file
    + * distributed with this work for additional information
    + * regarding copyright ownership.  The ASF licenses this file
    + * to you under the Apache License, Version 2.0 (the
    + * "License"); you may not use this file except in compliance
    + * with the License.  You may obtain a copy of the License at
    + *
    + * http://www.apache.org/licenses/LICENSE-2.0
    + *
    + * Unless required by applicable law or agreed to in writing, software
    + * distributed under the License is distributed on an "AS IS" BASIS,
    + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    + * See the License for the specific language governing permissions and
    + * limitations under the License.
    + */
    +
    +package org.apache.phoenix.expression.function;
    +
    +import java.util.List;
    +
    +import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
    +import org.apache.phoenix.expression.Expression;
    +import org.apache.phoenix.parse.FunctionParseNode;
    +import org.apache.phoenix.schema.SortOrder;
    +import org.apache.phoenix.schema.TypeMismatchException;
    +import org.apache.phoenix.schema.tuple.Tuple;
    +import org.apache.phoenix.schema.types.*;
    +
    +@FunctionParseNode.BuiltInFunction(name = ArrayPrependFunction.NAME, args = {
    +        @FunctionParseNode.Argument(allowedTypes = {PVarbinary.class}),
    --- End diff --
    
    Ok great. I will work on the other changes.


> implement ARRAY_PREPEND built in function
> -----------------------------------------
>
>                 Key: PHOENIX-1875
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1875
>             Project: Phoenix
>          Issue Type: Sub-task
>            Reporter: Dumindu Buddhika
>            Assignee: Dumindu Buddhika
>         Attachments: PHOENIX-1875-v2.patch
>
>
> ARRAY_PREPEND(1, ARRAY[2, 3]) = ARRAY[1, 2, 3]
> ARRAY_PREPEND("a", ARRAY["b", "c"]) = ARRAY["a", "b", "c"]
> ARRAY_PREPEND(null, ARRAY["b", "c"]) = ARRAY[null, "b", "c"]



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