【发布时间】:2015-06-09 07:31:44
【问题描述】:
我正在努力优化查询时间。但在我的情况下,case 1 和 case 2 返回相同的结果。 case 1 应返回特定数据范围的结果,即 [time].[2015].[5].[10] : [time].[2015].[6].[9],而不是仅返回 [time].[2015].[6].[9] 作为 case 2 的结果。 case 1 返回正确的结果,即范围的数据,但前提是您删除了非空子句。删除非空子句意味着它将搜索整个数据集,这又需要很多时间。再次case 3 返回正确的结果,但操作比第一种方法需要更多时间。遇到此类问题的任何人或可以指导我解决问题。
案例 1
WITH
MEMBER [Measures].[abc_type] AS
[abc].CurrentMember.Properties("abc_type")
MEMBER [Measures].[abc_desc] AS
[abc].CurrentMember.Properties("abc_desc")
MEMBER [Measures].[abc_class] AS
[abc].CurrentMember.Properties("abc_class")
SELECT
NON EMPTY
{
[Measures].[abc_type]
,[Measures].[abc_desc]
,[Measures].[abc_class]
} ON COLUMNS
,NON EMPTY
Filter
(
{[abc].[abc_id].MEMBERS}
,St_contains
(
[district].[district_id].[1].Properties("the_geom")
,[abc].CurrentMember.Properties("the_geom")
)
) ON ROWS
FROM [analytics_cube]
WHERE
[time].[2015].[5].[10] : [time].[2015].[6].[9];
案例 2
WITH
MEMBER [Measures].[abc_type] AS
[abc].CurrentMember.Properties("abc_type")
MEMBER [Measures].[abc_desc] AS
[abc].CurrentMember.Properties("abc_desc")
MEMBER [Measures].[abc_class] AS
[abc].CurrentMember.Properties("abc_class")
SELECT
NON EMPTY
{
[Measures].[abc_type]
,[Measures].[abc_desc]
,[Measures].[abc_class]
} ON COLUMNS
,NON EMPTY
Filter
(
{[abc].[abc_id].MEMBERS}
,St_contains
(
[district].[district_id].[1].Properties("the_geom")
,[abc].CurrentMember.Properties("the_geom")
)
) ON ROWS
FROM [analytics_cube]
WHERE
[time].[2015].[6].[9];
案例 3
WITH
MEMBER [Measures].[abc_type] AS
[abc].CurrentMember.Properties("abc_type")
MEMBER [Measures].[abc_desc] AS
[abc].CurrentMember.Properties("abc_desc")
MEMBER [Measures].[abc_class] AS
[abc].CurrentMember.Properties("abc_class")
MEMBER [time].[newtime] AS
Aggregate([time].[2015].[5].[10] : [time].[2015].[6].[9])
SELECT
NON EMPTY
{
[Measures].[abc_type]
,[Measures].[abc_desc]
,[Measures].[abc_class]
} ON COLUMNS
,NON EMPTY
Filter
(
{[abc].[abc_id].MEMBERS}
,St_contains
(
[district].[district_id].[1].Properties("the_geom")
,[abc].CurrentMember.Properties("the_geom")
)
) ON ROWS
FROM [analytics_cube]
WHERE
[time].[newtime];
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标签: mdx pentaho date-range mondrian