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datafusion_datasource::file_scan_config - Rust
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datafusion_datasource

Module file_scan_config

Source
Expand description

FileScanConfig to configure scanning of possibly partitioned file sources.

Structs§

FileScanConfig
The base configurations for a DataSourceExec, the a physical plan for any given file format.
FileScanConfigBuilder
A builder for FileScanConfig’s.
PartitionColumnProjector
A helper that projects partition columns into the file record batches.

Functions§

wrap_partition_type_in_dict
Convert type to a type suitable for use as a ListingTable partition column. Returns Dictionary(UInt16, val_type), which is a reasonable trade off between a reasonable number of partition values and space efficiency.
wrap_partition_value_in_dict
Convert a ScalarValue of partition columns to a type, as described in the documentation of wrap_partition_type_in_dict, which can wrap the types.