Struct LogicalFile

pub struct LogicalFile<'a> { /* private fields */ }

A view into the log data representing a single logical file.

This struct holds a pointer to a specific row in the log data and provides access to the information stored in that row by tracking references to the underlying arrays.

Additionally, references to some table metadata is tracked to provide higher level functionality, e.g. parsing partition values.

Implementations

impl LogicalFile<'_>

pub fn path(&self) -> Cow<'_, str>

Path to the files storage location.

pub fn object_store_path(&self) -> Path

An object store Path to the file.

this tries to parse the file string and if that fails, it will return the string as is.

pub fn size(&self) -> i64

File size stored on disk.

pub fn modification_time(&self) -> i64

Last modification time of the file.

pub fn modification_datetime(&self) -> DeltaResult<DateTime<Utc>>

Datetime of the last modification time of the file.

pub fn partition_values(&self) -> DeltaResult<IndexMap<&'_ str, Scalar>>

The partition values for this logical file.

pub fn deletion_vector(&self) -> Option<DeletionVectorView<'_>>

Defines a deletion vector

pub fn num_records(&self) -> Option<usize>

The number of records stored in the data file.

pub fn null_counts(&self) -> Option<Scalar>

Struct containing all available null counts for the columns in this file.

pub fn min_values(&self) -> Option<Scalar>

Struct containing all available min values for the columns in this file.

pub fn max_values(&self) -> Option<Scalar>

Struct containing all available max values for the columns in this file.

pub fn remove_action(&self, data_change: bool) -> Remove

Create a remove action for this logical file.

Trait Implementations

impl<'a> Debug for LogicalFile<'a>

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

Formats the value using the given formatter.

impl<'a> PartialEq for LogicalFile<'a>

fn eq(&self, other: &LogicalFile<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> TryFrom<&LogicalFile<'a>> for ObjectMeta

type Error = DeltaTableError

The type returned in the event of a conversion error.

fn try_from(file_stats: &LogicalFile<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> StructuralPartialEq for LogicalFile<'a>