Value Members

1.  final def !=(arg0: Any): Boolean

   Definition Classes

   AnyRef → Any

2.  final def ##: Int

   Definition Classes

   AnyRef → Any

3.  final def ==(arg0: Any): Boolean

   Definition Classes

   AnyRef → Any

4.  val BY_TABLE_INSERTION: TreeNodeTag[Unit]

   A tag to identify if a CAST added by the table insertion resolver.

5.  val USER_SPECIFIED_CAST: TreeNodeTag[Boolean]

   A tag to decide if a CAST is specified by user.

6.  def apply(child: Expression, dataType: DataType, timeZoneId: Option[String], ansiEnabled: Boolean): Cast
7.  def apply(child: Expression, dataType: DataType, ansiEnabled: Boolean): Cast
8.  final def asInstanceOf[T0]: T0

   Definition Classes

   Any

9.  def canANSIStoreAssign(from: DataType, to: DataType): Boolean

   Returns true iff we can cast the from type to to type as per the ANSI SQL.

   Returns true iff we can cast the from type to to type as per the ANSI SQL. In practice, the behavior is mostly the same as PostgreSQL. It disallows certain unreasonable type conversions such as converting string to int or double to boolean.

10.  def canAnsiCast(from: DataType, to: DataType): Boolean

    As per section 6.13 "cast specification" in "Information technology — Database languages " + "- SQL — Part 2: Foundation (SQL/Foundation)": If the <cast operand> is a <value expression>, then the valid combinations of TD and SD in a <cast specification> are given by the following table.

    As per section 6.13 "cast specification" in "Information technology — Database languages " + "- SQL — Part 2: Foundation (SQL/Foundation)": If the <cast operand> is a <value expression>, then the valid combinations of TD and SD in a <cast specification> are given by the following table. "Y" indicates that the combination is syntactically valid without restriction; "M" indicates that the combination is valid subject to other Syntax Rules in this Sub- clause being satisfied; and "N" indicates that the combination is not valid: SD TD EN AN C D T TS YM DT BO UDT B RT CT RW EN Y Y Y N N N M M N M N M N N AN Y Y Y N N N N N N M N M N N C Y Y Y Y Y Y Y Y Y M N M N N D N N Y Y N Y N N N M N M N N T N N Y N Y Y N N N M N M N N TS N N Y Y Y Y N N N M N M N N YM M N Y N N N Y N N M N M N N DT M N Y N N N N Y N M N M N N BO N N Y N N N N N Y M N M N N UDT M M M M M M M M M M M M M N B N N N N N N N N N M Y M N N RT M M M M M M M M M M M M N N CT N N N N N N N N N M N N M N RW N N N N N N N N N N N N N M

    Where: EN = Exact Numeric AN = Approximate Numeric C = Character (Fixed- or Variable-Length, or Character Large Object) D = Date T = Time TS = Timestamp YM = Year-Month Interval DT = Day-Time Interval BO = Boolean UDT = User-Defined Type B = Binary (Fixed- or Variable-Length or Binary Large Object) RT = Reference type CT = Collection type RW = Row type

    Spark's ANSI mode follows the syntax rules, except it specially allow the following straightforward type conversions which are disallowed as per the SQL standard:

    • Numeric <=> Boolean
    • String <=> Binary
11.  def canCast(from: DataType, to: DataType): Boolean

    Returns true iff we can cast from type to to type.

12.  def canNullSafeCastToDecimal(from: DataType, to: DecimalType): Boolean
13.  def canTryCast(from: DataType, to: DataType): Boolean
14.  def canUpCast(from: DataType, to: DataType): Boolean

    Returns true iff we can safely up-cast the from type to to type without any truncating or precision lose or possible runtime failures.

    Returns true iff we can safely up-cast the from type to to type without any truncating or precision lose or possible runtime failures. For example, long -> int, string -> int are not up-cast.

15.  def clone(): AnyRef

    Attributes

    protected[lang]

    Definition Classes

    AnyRef

    Annotations

    @throws(classOf[java.lang.CloneNotSupportedException]) @native()

16.  final def eq(arg0: AnyRef): Boolean

    Definition Classes

    AnyRef

17.  def equals(arg0: AnyRef): Boolean

    Definition Classes

    AnyRef → Any

18.  def finalize(): Unit

    Attributes

    protected[lang]

    Definition Classes

    AnyRef

    Annotations

    @throws(classOf[java.lang.Throwable])

19.  def forceNullable(from: DataType, to: DataType): Boolean

    Returns true if casting non-nullable values from from type to to type may return null.

    Returns true if casting non-nullable values from from type to to type may return null. Note that the caller side should take care of input nullability first and only call this method if the input is not nullable.

20.  final def getClass(): Class[_ <: AnyRef]

    Definition Classes

    AnyRef → Any

    Annotations

    @native()

21.  def getQueryContext(sqlContext: SQLQueryContext): Array[QueryContext]

    Definition Classes

    QueryErrorsBase

22.  def getSummary(sqlContext: SQLQueryContext): String

    Definition Classes

    QueryErrorsBase

23.  def hashCode(): Int

    Definition Classes

    AnyRef → Any

    Annotations

    @native()

24.  final def isInstanceOf[T0]: Boolean

    Definition Classes

    Any

25.  final def ne(arg0: AnyRef): Boolean

    Definition Classes

    AnyRef

26.  def needsTimeZone(from: DataType, to: DataType): Boolean

    Return true if we need to use the timeZone information casting from type to to type.

    Return true if we need to use the timeZone information casting from type to to type. The patterns matched reflect the current implementation in the Cast node. c.f. usage of timeZone in: * Cast.castToString * Cast.castToDate * Cast.castToTimestamp

27.  final def notify(): Unit

    Definition Classes

    AnyRef

    Annotations

    @native()

28.  final def notifyAll(): Unit

    Definition Classes

    AnyRef

    Annotations

    @native()

29.  def processFloatingPointSpecialLiterals(v: String, isFloat: Boolean): Any

    We process literals such as 'Infinity', 'Inf', '-Infinity' and 'NaN' etc in case insensitive manner to be compatible with other database systems such as PostgreSQL and DB2.

30.  def resolvableNullability(from: Boolean, to: Boolean): Boolean
31.  final def synchronized[T0](arg0: => T0): T0

    Definition Classes

    AnyRef

32.  def toDSOption(option: String): String

    Definition Classes

    QueryErrorsBase

33.  def toSQLConf(conf: String): String

    Definition Classes

    QueryErrorsBase

34.  def toSQLConfVal(conf: String): String

    Definition Classes

    QueryErrorsBase

35.  def toSQLExpr(e: Expression): String

    Definition Classes

    QueryErrorsBase

36.  def toSQLId(parts: String): String

    Definition Classes

    QueryErrorsBase

37.  def toSQLId(parts: Seq[String]): String

    Definition Classes

    QueryErrorsBase

38.  def toSQLSchema(schema: String): String

    Definition Classes

    QueryErrorsBase

39.  def toSQLStmt(text: String): String

    Definition Classes

    QueryErrorsBase

40.  def toSQLType(text: String): String

    Definition Classes

    QueryErrorsBase

41.  def toSQLType(t: AbstractDataType): String

    Definition Classes

    QueryErrorsBase

42.  def toSQLValue(v: Any, t: DataType): String

    Definition Classes

    QueryErrorsBase

43.  def toString(): String

    Definition Classes

    AnyRef → Any

44.  def typeCheckFailureMessage(from: DataType, to: DataType, fallbackConf: Option[(String, String)]): DataTypeMismatch
45.  final def wait(): Unit

    Definition Classes

    AnyRef

    Annotations

    @throws(classOf[java.lang.InterruptedException])

46.  final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes

    AnyRef

    Annotations

    @throws(classOf[java.lang.InterruptedException])

47.  final def wait(arg0: Long): Unit

    Definition Classes

    AnyRef

    Annotations

    @throws(classOf[java.lang.InterruptedException]) @native()