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From Alberto Ramón <a.ramonporto...@gmail.com>
Subject Re: Can hierarchyDims contain jointDims
Date Fri, 17 Nov 2017 21:59:14 GMT
https://issues.apache.org/jira/browse/KYLIN-2149

Check this link, you need choose between use one or other
Some times would be great use both together

On 17 November 2017 at 06:43, doom <43535724@qq.com> wrote:

> So what's the second code segment mean in AggregationGroup build step?
> is it means replace the hierarchy dim with the joint dims witch contain it?
>
>
> ------------------ 原始邮件 ------------------
> *发件人:* "ShaoFeng Shi";<shaofengshi@apache.org>;
> *发送时间:* 2017年11月17日(星期五) 下午2:02
> *收件人:* "user"<user@kylin.apache.org>;
> *主题:* Re: Can hierarchyDims contain jointDims
>
> Joint could not be used in the hierarchy.
>
> Joint means treating multiple dimensions as one: they either all appeared,
> either all not; It is a conflict with hierarchy.
>
> 2017-11-16 21:29 GMT+08:00 doom <43535724@qq.com>:
>
>> HI ALL:
>> I read the src code of kylin 2.2, and find:
>>
>> In class CubeDes, if hierarchyDims contain jointDims will throw exception.
>> public void validateAggregationGroups() {
>>     ...
>>     if (CollectionUtils.containsAny(hierarchyDims, jointDims)) {
>>                 logger.error("Aggregation group " + index + " hierarchy
>> dimensions overlap with joint dimensions");
>>                 throw new IllegalStateException(
>>                         "Aggregation group " + index + " hierarchy
>> dimensions overlap with joint dimensions: "
>>                                 + ensureOrder(CollectionUtils.intersection(hierarchyDims,
>> jointDims)));
>> }
>>
>> But in class AggregationGroup will replace the hierarchy dim with the
>> joint dims witch contain it.
>> private void buildHierarchyMasks(RowKeyDesc rowKeyDesc) {
>>             .....
>>             for (int i = 0; i < hierarchy_dims.length; i++) {
>>                 TblColRef hColumn = cubeDesc.getModel().findColumn
>> (hierarchy_dims[i]);
>>                 Integer index = rowKeyDesc.getColumnBitIndex(hColumn);
>>                 long bit = 1L << index;
>>
>>                 // combine joint as logic dim
>>                 if (dim2JointMap.get(bit) != null) {
>>                     bit = dim2JointMap.get(bit);
>>                 }
>>
>>                 mask.fullMask |= bit;
>>                 allMaskList.add(mask.fullMask);
>>                 dimList.add(bit);
>>             }
>> }
>>
>> do i understand in a wrong way?
>>
>>
>>
>
>
> --
> Best regards,
>
> Shaofeng Shi 史少锋
>
>

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