instance method init_from_schema_json

# File activerecord/lib/active_record/connection_adapters/schema_cache.rb, line 299
      def init_from_schema_json(coder, references)
        @columns          = coder["columns"].transform_values { |columns| columns.map { |i| references[i] } }
        @columns_hash     = @columns.transform_values { |columns| columns.index_by(&:name) }
        @primary_keys     = coder["primary_keys"]
        @data_sources     = coder["data_sources"].index_with { true }
        @indexes          = (coder["indexes"] || {}).transform_values { |indexes| indexes.map { |i| references[i] } }
        @version          = coder["version"]
      end