Struct iceberg::scan::FileScanTask

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pub struct FileScanTask {
    pub start: u64,
    pub length: u64,
    pub record_count: Option<u64>,
    pub data_file_path: String,
    pub data_file_content: DataContentType,
    pub data_file_format: DataFileFormat,
    pub schema: SchemaRef,
    pub project_field_ids: Vec<i32>,
    pub predicate: Option<BoundPredicate>,
}
Expand description

A task to scan part of file.

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§start: u64

The start offset of the file to scan.

§length: u64

The length of the file to scan.

§record_count: Option<u64>

The number of records in the file to scan.

This is an optional field, and only available if we are reading the entire data file.

§data_file_path: String

The data file path corresponding to the task.

§data_file_content: DataContentType

The content type of the file to scan.

§data_file_format: DataFileFormat

The format of the file to scan.

§schema: SchemaRef

The schema of the file to scan.

§project_field_ids: Vec<i32>

The field ids to project.

§predicate: Option<BoundPredicate>

The predicate to filter.

Implementations§

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impl FileScanTask

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pub fn data_file_path(&self) -> &str

Returns the data file path of this file scan task.

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pub fn project_field_ids(&self) -> &[i32]

Returns the project field id of this file scan task.

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pub fn predicate(&self) -> Option<&BoundPredicate>

Returns the predicate of this file scan task.

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pub fn schema(&self) -> &Schema

Returns the schema of this file scan task as a reference

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pub fn schema_ref(&self) -> SchemaRef

Returns the schema of this file scan task as a SchemaRef

Trait Implementations§

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impl Clone for FileScanTask

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fn clone(&self) -> FileScanTask

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 FileScanTask

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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<'de> Deserialize<'de> for FileScanTask

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl PartialEq for FileScanTask

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fn eq(&self, other: &FileScanTask) -> 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 Serialize for FileScanTask

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl StructuralPartialEq for FileScanTask

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