public class UnresolvedAlias extends UnaryExpression implements NamedExpression, scala.Product, scala.Serializable
Constructor and Description |
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UnresolvedAlias(Expression child) |
Modifier and Type | Method and Description |
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abstract static boolean |
canEqual(Object that) |
static boolean |
checkEquals(Expression other) |
Expression |
child() |
static scala.collection.Seq<Expression> |
children() |
static boolean |
childrenValid() |
abstract static boolean |
equals(Object that) |
static boolean |
fastEquals(TreeNode<?> other) |
static A |
makeCopy(Object[] newArgs) |
String |
name() |
static A |
postOrderTransform(scala.PartialFunction<A,A> rule) |
static void |
preOrderVisit(scala.Function1<A,scala.runtime.BoxedUnit> f) |
abstract static int |
productArity() |
abstract static Object |
productElement(int n) |
static scala.collection.Iterator<Object> |
productIterator() |
static String |
productPrefix() |
TypeInformation<?> |
resultType()
Returns the
TypeInformation for evaluating this expression. |
Attribute |
toAttribute() |
static org.apache.calcite.rex.RexNode |
toRexNode(org.apache.calcite.tools.RelBuilder relBuilder) |
boolean |
valid()
One pass validation of the expression tree in post order.
|
static ValidationResult |
validateInput() |
children
checkEquals, childrenValid, toRexNode, validateInput
fastEquals, makeCopy, postOrderTransform, preOrderVisit
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
public UnresolvedAlias(Expression child)
public abstract static boolean canEqual(Object that)
public abstract static boolean equals(Object that)
public abstract static Object productElement(int n)
public abstract static int productArity()
public static scala.collection.Iterator<Object> productIterator()
public static String productPrefix()
public static boolean fastEquals(TreeNode<?> other)
public static A postOrderTransform(scala.PartialFunction<A,A> rule)
public static void preOrderVisit(scala.Function1<A,scala.runtime.BoxedUnit> f)
public static A makeCopy(Object[] newArgs)
public static boolean childrenValid()
public static ValidationResult validateInput()
public static org.apache.calcite.rex.RexNode toRexNode(org.apache.calcite.tools.RelBuilder relBuilder)
public static boolean checkEquals(Expression other)
public static scala.collection.Seq<Expression> children()
public Expression child()
child
in class UnaryExpression
public String name()
name
in interface NamedExpression
public Attribute toAttribute()
toAttribute
in interface NamedExpression
public TypeInformation<?> resultType()
Expression
TypeInformation
for evaluating this expression.
It is sometimes not available until the expression is valid.resultType
in class Expression
public boolean valid()
Expression
valid
in class Expression
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