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sys.partitions (Transact-SQL)

Contains a row for each partition of all the tables and most types of indexes in the database. Special index types like Full-Text, Spatial, and XML are not included in this view. All tables and indexes in SQL Server contain at least one partition, whether or not they are explicitly partitioned.

Column name

Data type

Description

partition_id

bigint

Indicates the partition ID. Is unique within a database.

object_id

int

Indicates the ID of the object to which this partition belongs. Every table or view is composed of at least one partition.

index_id

int

Indicates the ID of the index within the object to which this partition belongs.

  • 0 = heap

  • 1 = clustered index

  • 2 or greater = nonclustered index

partition_number

int

Is a 1-based partition number within the owning index or heap. For non-partitioned tables and indexes, the value of this column is 1.

hobt_id

bigint

Indicates the ID of the data heap or B-tree that contains the rows for this partition.

rows

bigint

Indicates the approximate number of rows in this partition.

filestream_filegroup_id

smallint

Indicates the ID of the FILESTREAM filegroup stored on this partition.

data_compression

tinyint

Indicates the state of compression for each partition:

0 = NONE

1 = ROW

2 = PAGE

3 = COLUMNSTORE

Note Note

Full text indexes will be compressed in any edition of SQL Server.

data_compression_desc

nvarchar(60)

Indicates the state of compression for each partition. Possible values are NONE, ROW, PAGE, and COLUMNSTORE.

Requires membership in the public role. For more information, see Metadata Visibility Configuration.

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