schema

type ColumnSchema struct {
	ID          string
	Name        string
	NotNull     bool
	Type        string
	Default     string
	Description string
}

type Metadata struct {
	// map {schemaname, {map tablename -> tableschema}}
	Schemas map[string]map[string]TableSchema
}

type TableSchema struct {
	// map {columnName -> columnschema}
	Columns     map[string]ColumnSchema
	Name        string
	Schema      string
	Description string
}