pub struct HivePartitioningOptions {
    pub mode: String,
    pub source_uri_prefix: String,
    pub require_partition_filter: Option<bool>,
    pub fields: Vec<String>,
}
Expand description

Options for configuring hive partitioning detect.

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§mode: String

Optional. When set, what mode of hive partitioning to use when reading data. The following modes are supported:

  • AUTO: automatically infer partition key name(s) and type(s).

  • STRINGS: automatically infer partition key name(s). All types are strings.

  • CUSTOM: partition key schema is encoded in the source URI prefix.

Not all storage formats support hive partitioning. Requesting hive partitioning on an unsupported format will lead to an error. Currently supported formats are: JSON, CSV, ORC, Avro and Parquet.

§source_uri_prefix: String

Optional. When hive partition detection is requested, a common prefix for all source uris must be required. The prefix must end immediately before the partition key encoding begins. For example, consider files following this data layout:

gs://bucket/path_to_table/dt=2019-06-01/country=USA/id=7/file.avro

gs://bucket/path_to_table/dt=2019-05-31/country=CA/id=3/file.avro

When hive partitioning is requested with either AUTO or STRINGS detection, the common prefix can be either of gs://bucket/path_to_table or gs://bucket/path_to_table/.

CUSTOM detection requires encoding the partitioning schema immediately after the common prefix. For CUSTOM, any of

  • gs://bucket/path_to_table/{dt:DATE}/{country:STRING}/{id:INTEGER}

  • gs://bucket/path_to_table/{dt:STRING}/{country:STRING}/{id:INTEGER}

  • gs://bucket/path_to_table/{dt:DATE}/{country:STRING}/{id:STRING}

would all be valid source URI prefixes.

§require_partition_filter: Option<bool>

Optional. If set to true, queries over this table require a partition filter that can be used for partition elimination to be specified.

Note that this field should only be true when creating a permanent external table or querying a temporary external table.

Hive-partitioned loads with require_partition_filter explicitly set to true will fail.

§fields: Vec<String>

Output only. For permanent external tables, this field is populated with the hive partition keys in the order they were inferred. The types of the partition keys can be deduced by checking the table schema (which will include the partition keys). Not every API will populate this field in the output. For example, Tables.Get will populate it, but Tables.List will not contain this field.

Trait Implementations§

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impl Clone for HivePartitioningOptions

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fn clone(&self) -> HivePartitioningOptions

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for HivePartitioningOptions

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for HivePartitioningOptions

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Message for HivePartitioningOptions

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fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.
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fn clear(&mut self)

Clears the message, resetting all fields to their default.
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fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>
where Self: Sized,

Encodes the message to a buffer. Read more
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fn encode_to_vec(&self) -> Vec<u8>
where Self: Sized,

Encodes the message to a newly allocated buffer.
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fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>
where Self: Sized,

Encodes the message with a length-delimiter to a buffer. Read more
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fn encode_length_delimited_to_vec(&self) -> Vec<u8>
where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.
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fn decode(buf: impl Buf) -> Result<Self, DecodeError>
where Self: Default,

Decodes an instance of the message from a buffer. Read more
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fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>
where Self: Default,

Decodes a length-delimited instance of the message from the buffer.
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fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>
where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self. Read more
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fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>
where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.
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impl PartialEq for HivePartitioningOptions

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fn eq(&self, other: &HivePartitioningOptions) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for HivePartitioningOptions

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