case class SingleColumn(expr: Expression, qualifier: Option[String] = None, nodeLocation: Option[NodeLocation]) extends Attribute with Product with Serializable
An attribute that produces a single column value with a given expression.
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Inherited
- SingleColumn
- Attribute
- LogSupport
- LazyLogger
- LoggingMethods
- Serializable
- LeafExpression
- Expression
- Product
- Equals
- TreeNode
- AnyRef
- Any
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Visibility
- Public
- Protected
Instance Constructors
- new SingleColumn(expr: Expression, qualifier: Option[String] = None, nodeLocation: Option[NodeLocation])
Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##: Int
- Definition Classes
- AnyRef → Any
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- def alias: Option[String]
- Definition Classes
- Attribute
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def attributeName: String
Column name without qualifier
Column name without qualifier
- Definition Classes
- Attribute → Expression
- def children: Seq[Expression]
- Definition Classes
- SingleColumn → LeafExpression → TreeNode
- def clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @native() @HotSpotIntrinsicCandidate()
- def collectExpressions(cond: PartialFunction[Expression, Boolean]): List[Expression]
- Definition Classes
- Expression
- def collectSubExpressions: List[Expression]
- Definition Classes
- Expression
- def dataType: DataType
- Definition Classes
- SingleColumn → Expression
- def dataTypeName: String
- Definition Classes
- Expression
- macro def debug(message: Any, cause: Throwable): Unit
- Attributes
- protected
- Definition Classes
- LoggingMethods
- macro def debug(message: Any): Unit
- Attributes
- protected
- Definition Classes
- LoggingMethods
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- macro def error(message: Any, cause: Throwable): Unit
- Attributes
- protected
- Definition Classes
- LoggingMethods
- macro def error(message: Any): Unit
- Attributes
- protected
- Definition Classes
- LoggingMethods
- val expr: Expression
- def fullName: String
- Definition Classes
- Attribute
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @native() @HotSpotIntrinsicCandidate()
- macro def info(message: Any, cause: Throwable): Unit
- Attributes
- protected
- Definition Classes
- LoggingMethods
- macro def info(message: Any): Unit
- Attributes
- protected
- Definition Classes
- LoggingMethods
- def inputColumns: Seq[Attribute]
Return columns used for generating this attribute
Return columns used for generating this attribute
- Definition Classes
- SingleColumn → Attribute
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- macro def logAt(logLevel: LogLevel, message: Any): Unit
- Attributes
- protected
- Definition Classes
- LoggingMethods
- lazy val logger: Logger
- Attributes
- protected[this]
- Definition Classes
- LazyLogger
- def matched(columnPath: ColumnPath, context: AnalyzerContext): Option[Attribute]
If a given column name matches with this Attribute, return this.
If a given column name matches with this Attribute, return this. If there are multiple candidate attributes (e.g., via Join, Union), return MultiSourceAttribute.
- Definition Classes
- Attribute
- def matchesWith(columnPath: ColumnPath): Boolean
Return true if this Attribute matches with a given column path
Return true if this Attribute matches with a given column path
- Definition Classes
- Attribute
- def name: String
- Definition Classes
- SingleColumn → Attribute
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- val nodeLocation: Option[NodeLocation]
- returns
the code location in the SQL text if available
- Definition Classes
- SingleColumn → TreeNode
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @HotSpotIntrinsicCandidate()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @HotSpotIntrinsicCandidate()
- def outputColumns: Seq[Attribute]
Return columns generated from this attribute
Return columns generated from this attribute
- Definition Classes
- SingleColumn → Attribute
- def prefix: String
- Definition Classes
- Attribute
- def productElementNames: Iterator[String]
- Definition Classes
- Product
- val qualifier: Option[String]
- Definition Classes
- SingleColumn → Attribute
- lazy val resolved: Boolean
- Definition Classes
- Expression
- def resolvedChildren: Boolean
- Definition Classes
- Expression
- def resolvedInputs: Boolean
- Definition Classes
- Expression
- def setQualifierIfEmpty(newQualifier: Option[String]): Attribute
- Definition Classes
- Attribute
- def sourceColumns: Seq[SourceColumn]
Returns the unmodified source columns referenced by this Attribute
Returns the unmodified source columns referenced by this Attribute
- Definition Classes
- SingleColumn → Attribute
- def sqlExpr: String
- Definition Classes
- SingleColumn → Expression
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
- AnyRef
- def toString(): String
- Definition Classes
- SingleColumn → AnyRef → Any
- macro def trace(message: Any, cause: Throwable): Unit
- Attributes
- protected
- Definition Classes
- LoggingMethods
- macro def trace(message: Any): Unit
- Attributes
- protected
- Definition Classes
- LoggingMethods
- def transformExpression(rule: PartialFunction[Expression, Expression]): Expression
Recursively transform the expression in breadth-first order
Recursively transform the expression in breadth-first order
- Definition Classes
- Expression
- def transformPlan(rule: PartialFunction[LogicalPlan, LogicalPlan]): Expression
- Definition Classes
- Expression
- def transformUpExpression(rule: PartialFunction[Expression, Expression]): Expression
Recursively transform the expression in depth-first order
Recursively transform the expression in depth-first order
- Definition Classes
- Expression
- def traverseExpressions[U](rule: PartialFunction[Expression, U]): Unit
- Definition Classes
- Expression
- def traversePlan[U](rule: PartialFunction[LogicalPlan, U]): Unit
- Definition Classes
- Expression
- def traversePlanOnce[U](rule: PartialFunction[LogicalPlan, U]): Unit
- Definition Classes
- Expression
- def typeDescription: String
* Returns "(name):(type)" of this attribute
* Returns "(name):(type)" of this attribute
- Definition Classes
- Expression
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException]) @native()
- final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- macro def warn(message: Any, cause: Throwable): Unit
- Attributes
- protected
- Definition Classes
- LoggingMethods
- macro def warn(message: Any): Unit
- Attributes
- protected
- Definition Classes
- LoggingMethods
- def withAlias(newAlias: Option[String]): Attribute
- Definition Classes
- Attribute
- def withAlias(newAlias: String): Attribute
- Definition Classes
- Attribute
- def withQualifier(newQualifier: Option[String]): Attribute
- Definition Classes
- SingleColumn → Attribute
- def withQualifier(newQualifier: String): Attribute
- Definition Classes
- Attribute
Deprecated Value Members
- def finalize(): Unit
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.Throwable]) @Deprecated
- Deprecated