Define Delta Lake table schemas in YAML.

deltalake_schemas.yaml

# A top-level `type: struct` is a `Schema`
# These can be serialized into a deltalake::Schema struct using serde_yaml in rust
# let schema: deltalake::Schema = serde_yaml::from_str(r#"<your yaml>");
---
# A struct with primitive fields
type: struct
fields:
  - name: String
    type: string
    nullable: true
    metadata: {}
  - name: Long
    type: long
    nullable: true
    metadata: {}
---
# Schema with an Array
type: struct
fields:
  - name: Array
    type: # for anything not primitive, this field must be a map type 
      type: array
      elementType: integer
      containsNull: true
    nullable: true
    metadata: {}
---
# Schema with a struct field
type: struct
fields:
  - name: Struct
    type: # for anything not primitive, this field must be a map type 
      type: struct
      fields:
        - name: Integer
          type: integer
          nullable: true
          metadata: {}
    nullable: true
    metadata: {}