The QueryPartition class is a regular type that represents a single slice of a parallel SQL read.
Instances of QueryPartition are created by Client::PartitionQuery. Once created, QueryPartition objects can be serialized, transmitted to separate processes, and used to read data in parallel using Client::ExecuteQuery. If data_boost is set, those requests will be executed using the independent compute resources of Cloud Spanner Data Boost.
Constructors
QueryPartition(QueryPartition const &)
Copy and move
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| Name | Description |
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QueryPartition const &
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QueryPartition(QueryPartition &&)
Copy and move
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QueryPartition &&
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QueryPartition()
Constructs an instance of QueryPartition that is not associated with any SqlStatement.
Operators
operator=(QueryPartition const &)
Copy and move
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| Name | Description |
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QueryPartition const &
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| Type | Description |
QueryPartition & | |
operator=(QueryPartition &&)
Copy and move
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| Name | Description |
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QueryPartition &&
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| Type | Description |
QueryPartition & | |
Functions
sql_statement() const
Accessor for the SqlStatement associated with this QueryPartition.
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| Type | Description |
SqlStatement const & | |