Changes between Initial Version and Version 1 of PartitioningVerification

Timestamp:

02/08/26 16:28:53 (3 weeks ago)

Author:

185022

Comment:

--

PartitioningVerification

@@ +1 @@
+= Верификација
+
+Проверката е слична за сите табели. 
+
+Подолу е прикажан пример само за `encounters` табелата.
+
+== Проверка дека датотечните групи се креирани исправно
+
+{{{#!sql
+select 
+    fg.name as FilegroupName,
+    df.name as LogicalFileName,
+    df.type_desc as FileType,
+    df.physical_name as PhysicalPath,
+    df.size / 128.0 as SizeMB
+from sys.filegroups fg
+left join sys.database_files df ON fg.data_space_id = df.data_space_id
+order by fg.name;
+go
+}}}
+
+== Проверка дека партициската шема и функцијата работат исправно
+
+{{{#!sql
+select 
+    ps.name as PartitionScheme,
+    pf.name as PartitionFunction,
+    dds.destination_id as PartitionNumber,
+    fg.name as FilegroupName,
+    prv.value as UpperBoundaryValue
+from sys.partition_schemes ps
+join sys.partition_functions pf on ps.function_id = pf.function_id
+join sys.destination_data_spaces dds on ps.data_space_id = dds.partition_scheme_id
+join sys.filegroups fg on dds.data_space_id = fg.data_space_id
+left join sys.partition_range_values prv 
+    on pf.function_id = prv.function_id 
+    and dds.destination_id = case when pf.boundary_value_on_right = 1 then prv.boundary_id + 1 else prv.boundary_id end
+where ps.name = 'ps_Encounters_Year'
+order by dds.destination_id;
+go
+-----------------------------
+select
+    fg.name as FilegroupName,
+    df.name as LogicalFileName,
+    df.physical_name,
+    df.size / 128.0 as SizeMB
+from sys.filegroups fg
+    left join sys.database_files df on fg.data_space_id = df.data_space_id;
+go
+}}}
+
+== Дистрибуција по партиции
+
+{{{#!sql
+select
+    $partition.pf_Encounters_Year([start]) as PartitionNumber,
+    count(*) as 'RowCount',
+    min([start]) as MinDate,
+    max([start]) as MaxDate
+from dbo.encounters
+group by $partition.pf_Encounters_Year([start])
+order by PartitionNumber;
+go
+}}}
+
+== Filegroup usage
+
+{{{#!sql
+select 
+    fg.name as FilegroupName,
+    count(*) as PartitionCount
+from sys.partitions p
+join sys.indexes i on p.object_id = i.object_id and p.index_id = i.index_id
+join sys.data_spaces ds on i.data_space_id = ds.data_space_id
+join sys.filegroups fg on ds.data_space_id = fg.data_space_id
+where object_name(p.object_id) = 'Encounters'
+group by fg.name;
+go
+}}}
+
+== Partition elimination
+
+{{{#!sql
+set statistics io on
+select count(*) from encounters where [start] >= '2022-01-01';
+set statistics io off;
+}}}