Column = ref object
  name*: string
  typ*: RdbTypeKind
  isIndex*: bool
  isNullable*: bool
  isUnsigned*: bool
  isUnique*: bool
  isAutoIncrement*: bool
  isDefault*: bool
  defaultBool*: bool
  defaultInt*: int
  defaultFloat*: float
  defaultString*: string
  defaultJson*: JsonNode
  defaultDatetime*: DefaultDateTime
  foreignOnDelete*: ForeignOnDelete
  info*: JsonNode
  checksum*: string
  previousName*: string
  migrationType*: ColumnMigrationType
  usecaseType*: UsecaseType

proc add(c: Column): Column {....raises: [], tags: [].}

proc autoIncrement(c: Column): Column {....raises: [], tags: [].}

proc bigInteger(_: type Column; name: string): Column

proc binary(_: type Column; name: string): Column

proc boolean(_: type Column; name: string): Column

proc change(c: Column): Column {....raises: [], tags: [].}

proc char(_: type Column; name: string; maxLength: int): Column

proc date(_: type Column; name: string): Column

proc datetime(_: type Column; name: string): Column

proc decimal(_: type Column; name: string; maximum: int; digit: int): Column

proc default(c: Column): Column {....raises: [], tags: [].}

proc default(c: Column; value: bool): Column {....raises: [], tags: [].}

proc default(c: Column; value: DefaultDateTime): Column {....raises: [], tags: [].}

proc default(c: Column; value: float): Column {....raises: [], tags: [].}

proc default(c: Column; value: int): Column {....raises: [], tags: [].}

proc default(c: Column; value: JsonNode): Column {....raises: [], tags: [].}

proc default(c: Column; value: string): Column {....raises: [], tags: [].}

proc double(_: type Column; name: string; maximum: int; digit: int): Column

proc dropColumn(_: type Column; name: string): Column

proc enumField(_: type Column; name: string; options: openArray[string]): Column

proc float(_: type Column; name: string): Column

proc foreign(_: type Column; name: string): Column

proc increments(_: type Column; name: string): Column

proc index(c: Column): Column {....raises: [], tags: [].}

proc integer(_: type Column; name: string): Column

proc json(_: type Column; name: string): Column

proc longText(_: type Column; name: string): Column

proc mediumInteger(_: type Column; name: string): Column

proc mediumText(_: type Column; name: string): Column

proc nullable(c: Column): Column {....raises: [], tags: [].}

proc on(self: Column; table: string): Column {.
    ...deprecated: "Use `onTable` instead after Nim v2", raises: [], tags: [].}

proc onDelete(self: Column; kind: ForeignOnDelete): Column {....raises: [],
    tags: [].}

proc reference(self: Column; column: string): Column {....raises: [], tags: [].}

proc renameColumn(_: type Column; src, dest: string): Column

proc smallInteger(_: type Column; name: string): Column

proc softDelete(_: type Column): Column

proc strForeign(_: type Column; name: string; length = 255): Column

proc string(_: type Column; name: string; length = 255): Column

proc text(_: type Column; name: string): Column

proc time(_: type Column; name: string): Column

proc timestamp(_: type Column; name: string): Column

proc timestamps(_: type Column): Column

proc toSchema(self: Column): JsonNode {....raises: [], tags: [].}

proc unique(c: Column): Column {....raises: [], tags: [].}

proc unsigned(c: Column): Column {....raises: [], tags: [].}

proc uuid(_: type Column; name: string): Column