digraph SQLTypes {
  node [shape = record]
  DataType [label = "{DataType|nullable: Boolean}"]
  StringType [label = "{StringType|maxLength: Int}"]
  CharacterStringType [label = "{CharacterStringType|encoding: String}"]
  CharacterType [label = "{CharacterType|length: Int}"]
  CharacterVaryingType [label = "{CharacterVaryingType|length: Int}"]
  CharacterLargeObjectType [label = "CharacterLargeObjectType"]
  BinaryStringType [label = "BinaryStringType"]
  BinaryType [label = "{BinaryType|length: Int}"]
  BinaryVaryingType [label = "{BinaryVaryingType|length: Int}"]
  BinaryLargeObjectType [label = "BinaryLargeObjectType"]
  BooleanType [label = "BooleanType"]
  NumericType [label = "{NumericType|precisionRadix: Int\nprecision: Int}"]
  ExactNumericType [label = "{ExactNumericType|scale: Int}"]
  ApproximateNumericType [label = "ApproximateNumericType"]
  DateTimeType [label = "DateTimeType"]
  TimeType [label = "{TimeType|precisionRadix: Int\nsecondScale: Int}"]
  TimeWithoutTimezoneType [label = "TimeWithoutTimezoneType"]
  TimeWithTimezoneType [label = "TimeWithTimezoneType"]
  TimestampType [label = "{TimestampType|precisionRadix: Int\nsecondScale: Int}"]
  TimestampWithoutTimezoneType [label = "TimestampWithoutTimezoneType"]
  TimestampWithTimezoneType [label = "TimestampWithTimezoneType"]
  DateType [label = "DateType"]
  IntervalType [label = "{IntervalType|precisionRadix: Int\nsecondScale: Int}"]
  StringType -> DataType
  BooleanType -> DataType
  NumericType -> DataType
  DateTimeType -> DataType
  IntervalType -> DataType
  CharacterStringType -> StringType
  BinaryStringType -> StringType
  ExactNumericType -> NumericType
  ApproximateNumericType -> NumericType
  TimeType -> DateTimeType
  TimestampType -> DateTimeType
  DateType -> DateTimeType
  CharacterType -> CharacterStringType
  CharacterVaryingType -> CharacterStringType
  CharacterLargeObjectType -> CharacterStringType
  BinaryType -> BinaryStringType
  BinaryVaryingType -> BinaryStringType
  BinaryLargeObjectType -> BinaryStringType
  TimeWithoutTimezoneType -> TimeType
  TimeWithTimezoneType -> TimeType
  TimestampWithoutTimezoneType -> TimestampType
  TimestampWithTimezoneType -> TimestampType
}