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Class TimePartitioning (2.41.0)
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Version 2.41.0 keyboard_arrow_down
public abstract class TimePartitioning implements Serializable
Objects of this class allow to configure table partitioning based on time. By dividing a large
table into smaller partitions, you can improve query performance and reduce the number of bytes
billed by restricting the amount of data scanned.
See Also: Partitioned Tables
Static Methods
newBuilder(TimePartitioning.Type type)
public static TimePartitioning . Builder newBuilder ( TimePartitioning . Type type )
Returns a TimePartitioning object given the time partitioning type.
of(TimePartitioning.Type type)
public static TimePartitioning of ( TimePartitioning . Type type )
Returns a TimePartitioning object given the time partitioning type. The partitions will
not expire.
of(TimePartitioning.Type type, long expirationMs)
public static TimePartitioning of ( TimePartitioning . Type type , long expirationMs )
Returns a TimePartitioning object given the time partitioning type and the partition's
expiration in milliseconds.
Parameters
Name Description
typeTimePartitioning.Type the time partitioning type.
expirationMslong the number of milliseconds for which to keep the storage for a partition
Methods
getExpirationMs()
public abstract Long getExpirationMs ()
Returns the number of milliseconds for which to keep the storage for a partition. When expired,
the storage for the partition is reclaimed. If null, the partion does not expire.
Returns
Type Description
Long
getField()
public abstract String getField ()
Beta
This feature is covered by the Pre-GA Offerings Terms of the Terms of Service. Pre-GA libraries might have limited support, and changes to pre-GA libraries might not be compatible with other pre-GA versions. For more information, see the launch stage descriptions.
If not set, the table is partitioned by pseudo column '_PARTITIONTIME'; if set, the table is
partitioned by this field.
Returns
Type Description
String
getRequirePartitionFilter()
public abstract Boolean getRequirePartitionFilter ()
Beta
This feature is covered by the Pre-GA Offerings Terms of the Terms of Service. Pre-GA libraries might have limited support, and changes to pre-GA libraries might not be compatible with other pre-GA versions. For more information, see the launch stage descriptions.
If set to true, queries over this table require a partition filter (that can be used for
partition elimination) to be specified.
getType()
public abstract TimePartitioning . Type getType ()
Returns the time partitioning type.
toBuilder()
public abstract TimePartitioning . Builder toBuilder ()
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Last updated 2024-10-04 UTC.
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{"lastModified": "Last updated 2024-10-04 UTC."}
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