Module schema

Persist schema evolution.

Structs

• Migration
  See backward_compatible.
• SchemaId
  An ordered identifier for a pair of key and val schemas registered to a shard.

Enums

• ArrayMigration 🔒
• StructArrayMigration 🔒

Functions

• backward_compatible
  Returns a function to migrate arrow data encoded by old to be the same DataType as arrow data encoded by new, if new is backward compatible with old. Exposed for testing.
• backward_compatible_struct 🔒
• backward_compatible_typ 🔒