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Update column-store-indexes.sql

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Alexey Bochkov
2019-04-15 19:13:44 -07:00
committed by GitHub
parent d2d49ce3b0
commit a388cd12d3
1 changed files with 14 additions and 1 deletions
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15
QueryTemplates/Common Scripts/column-store-indexes.sql
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@@ -11,10 +11,23 @@ WHERE is_hypothetical = 0
-- maintenance
ALTER INDEX [IndexName] ON [TableName] REORGANIZE WITH (COMPRESS_ALL_ROW_GROUPS = ON);
ALTER INDEX [IndexName] ON [TableName] REBUILD PARTITION = ALL WITH (DATA_COMPRESSION = COLUMNSTORE);
ALTER INDEX [IndexName] ON [TableName] REBUILD PARTITION = ALL WITH (DATA_COMPRESSION = COLUMNSTORE_ARCHIVE, MAXDOP = 1);
-- get row group physical stats
SELECT *
FROM sys.dm_db_column_store_row_group_physical_stats
WHERE object_id = object_id('TableName')
ORDER BY row_group_id;
-- get some starts around CIX - helps to see which partitions need to be rebuilt
SELECT object_name(object_id)
,partition_number
,FORMAT(sum(row_group_id), 'N0') AS row_group_count
,FORMAT(sum(total_rows), 'N0') AS row_count
,FORMAT(sum(size_in_bytes), 'N0') AS size_in_bytes
,FORMAT(sum(size_in_bytes) / sum(total_rows), 'N0') AS size_per_row
FROM sys.dm_db_column_store_row_group_physical_stats
WHERE object_name(object_id) LIKE ' table name %'
GROUP BY object_name(object_id)
,partition_number
ORDER BY partition_number;