Module datatypes 

Lance data types, Schema and Field

Structs

Dictionary

Field

Lance Schema Field

LogicalType

LogicalType is a string presentation of arrow type. to be serialized into protobuf.

Projection

A projection is a selection of fields in a schema

Schema

Lance Schema.

SchemaCompareOptions

Enums

BlobHandling

Specifies how to handle blob columns when projecting

BlobVersion

Blob column format version.

Encoding

Encoding enum.

FieldRef

Reference to a field in a schema, either by ID or by path.

NullabilityComparison

OnMissing

What to do when a column is missing in the schema

OnTypeMismatch

What to do on a merge operation if the types of the fields don’t match

Constants

BLOB_LOGICAL_TYPE

Statics

BLOB_DESC_FIELD

BLOB_DESC_FIELDS

BLOB_DESC_LANCE_FIELD

BLOB_DESC_TYPE

BLOB_V2_DESC_FIELD

BLOB_V2_DESC_FIELDS

BLOB_V2_DESC_LANCE_FIELD

BLOB_V2_DESC_TYPE

Traits

Projectable

A trait for something that we can project fields from.

Functions

escape_field_path_for_project

Escape a field path for project

format_field_path

Format a field path, quoting field names that contain dots or backticks.

lance_supports_nulls

Returns true if Lance supports writing this datatype with nulls.

parse_field_path

Parse a field path that may contain quoted field names.