Crate lance_core 

Re-exports

pub use error::ArrowResult;

pub use error::Error;

pub use error::FenceReason;

pub use error::Result;

pub use error::box_error;

Modules

cache

Lance cache system.

container

datatypes

Lance data types, Schema and Field

deepsize

error

levenshtein

traits

Dataset Traits

utils

Macros

assume

Assert an invariant that should also be visible to the optimizer.

assume_eq

Helper macro for equality assumptions.

Constants

ROW_ADDR

Column name for the meta row address.

ROW_CREATED_AT_VERSION

Column name for the row’s created at dataset version.

ROW_CREATED_AT_VERSION_FIELD_ID

Field id of the hidden _row_created_at_version column a spilled created-at version sequence lives in.

ROW_ID

Column name for the meta row ID.

ROW_ID_FIELD_ID

Field id of the hidden _rowid column a spilled row id sequence lives in.

ROW_LAST_UPDATED_AT_VERSION

Column name for the row’s last updated at dataset version.

ROW_LAST_UPDATED_AT_VERSION_FIELD_ID

Field id of the hidden _row_last_updated_at_version column a spilled last-updated-at version sequence lives in.

ROW_OFFSET

Column name for the meta row offset.

WILDCARD

Wildcard to indicate all non-system columns

Statics

ROW_ADDR_FIELD

Row address field. This is nullable because its validity bitmap is sometimes used as a selection vector.

ROW_CREATED_AT_VERSION_FIELD

Row created at version field.

ROW_ID_FIELD

Row ID field. This is nullable because its validity bitmap is sometimes used as a selection vector.

ROW_LAST_UPDATED_AT_VERSION_FIELD

Row last updated at version field.

ROW_OFFSET_FIELD

Row offset field. This is nullable merely for compatibility with the other fields.

Functions

is_system_column

Check if a column name is a system column.

row_lineage_field_id

The reserved field id of a row lineage column, by column name.