Module encode

A permanent storage encoding for rows.

See row.proto for details.

Modules

fixed_binary_sizes 🔒

Structs

DatumEncoder 🔒

An encoder for a column of Datums.

RowColumnarDecoder

A ColumnDecoder for a Row.

RowColumnarEncoder

A ColumnEncoder for a Row.

Enums

DatumColumnDecoder 🔒

A decoder for a column of Datums.

DatumColumnEncoder 🔒

An encoder for a single column of Datums. To encode an entire row see RowColumnarEncoder.

Functions

array_to_decoder 🔒

Small helper function to downcast from an array to a DatumColumnDecoder.

downcast_array 🔒

Small helper method to make downcasting an Array return an error.

mask_nulls 🔒

Merge the provided null buffer with the existing array’s null buffer, if any.

preserves_order

Returns true iff the ordering of the “raw” and Persist-encoded versions of this columm would match: ie. sort(encode(column)) == encode(sort(column)). This encoding has been designed so that this is true for many types.

scalar_type_to_encoder 🔒

Small helper function to create a DatumColumnEncoder from a ScalarType