UnresolvedSubqueryColumnAliases

case class UnresolvedSubqueryColumnAliases(outputColumnNames: Seq[String], child: LogicalPlan) extends LogicalPlan with UnaryNode with Product with Serializable

Aliased column names resolved by positions for subquery. We could add alias names for output columns in the subquery:

// Assign alias names for output columns
SELECT col1, col2 FROM testData AS t(col1, col2);

outputColumnNames: the LogicalPlan on which this subquery column aliases apply.
child: the logical plan of this subquery.

Linear Supertypes

Serializable, UnaryNode, UnaryLike[LogicalPlan], LogicalPlan, Logging, QueryPlanConstraints, ConstraintHelper, LogicalPlanStats, AnalysisHelper, QueryPlan[LogicalPlan], SQLConfHelper, TreeNode[LogicalPlan], TreePatternBits, Product, Equals, AnyRef, Any

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UnresolvedSubqueryColumnAliases
Serializable
UnaryNode
UnaryLike
LogicalPlan
Logging
QueryPlanConstraints
ConstraintHelper
LogicalPlanStats
AnalysisHelper
QueryPlan
SQLConfHelper
TreeNode
TreePatternBits
Product
Equals
AnyRef
Any

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Visibility

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Protected

Instance Constructors

new UnresolvedSubqueryColumnAliases(outputColumnNames: Seq[String], child: LogicalPlan)
outputColumnNames
the LogicalPlan on which this subquery column aliases apply.
child
the logical plan of this subquery.

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
lazy val allAttributes: AttributeSeq
All the attributes that are used for this plan.
All the attributes that are used for this plan.
Definition Classes
QueryPlan
def analyzed: Boolean
Returns true if this node and its children have already been gone through analysis and verification.
Returns true if this node and its children have already been gone through analysis and verification. Note that this is only an optimization used to avoid analyzing trees that have already been analyzed, and can be reset by transformations.
Definition Classes
AnalysisHelper
def apply(number: Int): TreeNode[_]
Returns the tree node at the specified number, used primarily for interactive debugging.
Returns the tree node at the specified number, used primarily for interactive debugging. Numbers for each node can be found in the numberedTreeString.
Note that this cannot return BaseType because logical plan's plan node might return physical plan for innerChildren, e.g. in-memory relation logical plan node has a reference to the physical plan node it is referencing.
Definition Classes
TreeNode
def argString(maxFields: Int): String
Returns a string representing the arguments to this node, minus any children
Returns a string representing the arguments to this node, minus any children
Definition Classes
TreeNode
def asCode: String
Returns a 'scala code' representation of this TreeNode and its children.
Returns a 'scala code' representation of this TreeNode and its children. Intended for use when debugging where the prettier toString function is obfuscating the actual structure. In the case of 'pure' TreeNodes that only contain primitives and other TreeNodes, the result can be pasted in the REPL to build an equivalent Tree.
Definition Classes
TreeNode
final def asInstanceOf[T0]: T0
Definition Classes
Any
def assertNotAnalysisRule(): Unit
Attributes
protected
Definition Classes
AnalysisHelper
final lazy val canonicalized: LogicalPlan
Returns a plan where a best effort attempt has been made to transform this in a way that preserves the result but removes cosmetic variations (case sensitivity, ordering for commutative operations, expression id, etc.)
Returns a plan where a best effort attempt has been made to transform this in a way that preserves the result but removes cosmetic variations (case sensitivity, ordering for commutative operations, expression id, etc.)
Plans where this.canonicalized == other.canonicalized will always evaluate to the same result.
Plan nodes that require special canonicalization should override doCanonicalize(). They should remove expressions cosmetic variations themselves.
Definition Classes
QueryPlan
Annotations
@transient()
val child: LogicalPlan
Definition Classes
UnresolvedSubqueryColumnAliases → UnaryLike
final lazy val children: Seq[LogicalPlan]
Definition Classes
UnaryLike
Annotations
@transient()
def childrenResolved: Boolean
Returns true if all its children of this query plan have been resolved.
Returns true if all its children of this query plan have been resolved.
Definition Classes
LogicalPlan
def clone(): LogicalPlan
Definition Classes
AnalysisHelper → TreeNode → AnyRef
def collect[B](pf: PartialFunction[LogicalPlan, B]): Seq[B]
Returns a Seq containing the result of applying a partial function to all elements in this tree on which the function is defined.
Returns a Seq containing the result of applying a partial function to all elements in this tree on which the function is defined.
Definition Classes
TreeNode
def collectFirst[B](pf: PartialFunction[LogicalPlan, B]): Option[B]
Finds and returns the first TreeNode of the tree for which the given partial function is defined (pre-order), and applies the partial function to it.
Finds and returns the first TreeNode of the tree for which the given partial function is defined (pre-order), and applies the partial function to it.
Definition Classes
TreeNode
def collectLeaves(): Seq[LogicalPlan]
Returns a Seq containing the leaves in this tree.
Returns a Seq containing the leaves in this tree.
Definition Classes
TreeNode
def collectWithSubqueries[B](f: PartialFunction[LogicalPlan, B]): Seq[B]
A variant of collect.
A variant of collect. This method not only apply the given function to all elements in this plan, also considering all the plans in its (nested) subqueries
Definition Classes
QueryPlan
def conf: SQLConf
The active config object within the current scope.
The active config object within the current scope. See SQLConf.get for more information.
Definition Classes
SQLConfHelper
lazy val constraints: ExpressionSet
An ExpressionSet that contains invariants about the rows output by this operator.
An ExpressionSet that contains invariants about the rows output by this operator. For example, if this set contains the expression a = 2 then that expression is guaranteed to evaluate to true for all rows produced.
Definition Classes
QueryPlanConstraints
def constructIsNotNullConstraints(constraints: ExpressionSet, output: Seq[Attribute]): ExpressionSet
Infers a set of isNotNull constraints from null intolerant expressions as well as non-nullable attributes.
Infers a set of isNotNull constraints from null intolerant expressions as well as non-nullable attributes. For e.g., if an expression is of the form (a > 5), this returns a constraint of the form isNotNull(a)
Definition Classes
ConstraintHelper
final def containsAllPatterns(patterns: TreePattern*): Boolean
returns
true if every bit for patterns is set; false otherwise.
Definition Classes
TreePatternBits
final def containsAnyPattern(patterns: TreePattern*): Boolean
returns
true if at least one bit for patterns is set; false otherwise.
Definition Classes
TreePatternBits
lazy val containsChild: Set[TreeNode[_]]
Definition Classes
TreeNode
final def containsPattern(t: TreePattern): Boolean
returns
true if the bit for t is set; false otherwise.
Definition Classes
TreePatternBits
Annotations
@inline()
def copyTagsFrom(other: LogicalPlan): Unit
Definition Classes
TreeNode
def doCanonicalize(): LogicalPlan
Defines how the canonicalization should work for the current plan.
Defines how the canonicalization should work for the current plan.
Attributes
protected
Definition Classes
QueryPlan
final def eq(arg0: AnyRef): Boolean
Definition Classes
AnyRef
final def expressions: Seq[Expression]
Returns all of the expressions present in this query plan operator.
Returns all of the expressions present in this query plan operator.
Definition Classes
QueryPlan
def fastEquals(other: TreeNode[_]): Boolean
Faster version of equality which short-circuits when two treeNodes are the same instance.
Faster version of equality which short-circuits when two treeNodes are the same instance. We don't just override Object.equals, as doing so prevents the scala compiler from generating case class equals methods
Definition Classes
TreeNode
def finalize(): Unit
Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.Throwable])
def find(f: (LogicalPlan) => Boolean): Option[LogicalPlan]
Find the first TreeNode that satisfies the condition specified by f.
Find the first TreeNode that satisfies the condition specified by f. The condition is recursively applied to this node and all of its children (pre-order).
Definition Classes
TreeNode
def flatMap[A](f: (LogicalPlan) => TraversableOnce[A]): Seq[A]
Returns a Seq by applying a function to all nodes in this tree and using the elements of the resulting collections.
Returns a Seq by applying a function to all nodes in this tree and using the elements of the resulting collections.
Definition Classes
TreeNode
def foreach(f: (LogicalPlan) => Unit): Unit
Runs the given function on this node and then recursively on children.
Runs the given function on this node and then recursively on children.
f
the function to be applied to each node in the tree.
Definition Classes
TreeNode
def foreachUp(f: (LogicalPlan) => Unit): Unit
Runs the given function recursively on children then on this node.
Runs the given function recursively on children then on this node.
f
the function to be applied to each node in the tree.
Definition Classes
TreeNode
def formattedNodeName: String
Attributes
protected
Definition Classes
QueryPlan
def generateTreeString(depth: Int, lastChildren: Seq[Boolean], append: (String) => Unit, verbose: Boolean, prefix: String = "", addSuffix: Boolean = false, maxFields: Int, printNodeId: Boolean, indent: Int = 0): Unit
Appends the string representation of this node and its children to the given Writer.
Appends the string representation of this node and its children to the given Writer.
The i-th element in lastChildren indicates whether the ancestor of the current node at depth i + 1 is the last child of its own parent node. The depth of the root node is 0, and lastChildren for the root node should be empty.
Note that this traversal (numbering) order must be the same as getNodeNumbered.
Definition Classes
TreeNode
def getAllValidConstraints(projectList: Seq[NamedExpression]): ExpressionSet
Generates all valid constraints including an set of aliased constraints by replacing the original constraint expressions with the corresponding alias
Generates all valid constraints including an set of aliased constraints by replacing the original constraint expressions with the corresponding alias
Attributes
protected
Definition Classes
UnaryNode
final def getClass(): Class[_ <: AnyRef]
Definition Classes
AnyRef → Any
Annotations
@native()
def getDefaultTreePatternBits: BitSet
Default tree pattern for a TreeNode.
Default tree pattern for a TreeNode.
Attributes
protected
Definition Classes
TreeNode
def getTagValue[T](tag: TreeNodeTag[T]): Option[T]
Definition Classes
TreeNode
def hashCode(): Int
Definition Classes
TreeNode → AnyRef → Any
def inferAdditionalConstraints(constraints: ExpressionSet): ExpressionSet
Infers an additional set of constraints from a given set of equality constraints.
Infers an additional set of constraints from a given set of equality constraints. For e.g., if an operator has constraints of the form (a = 5, a = b), this returns an additional constraint of the form b = 5.
Definition Classes
ConstraintHelper
def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
Attributes
protected
Definition Classes
Logging
def initializeLogIfNecessary(isInterpreter: Boolean): Unit
Attributes
protected
Definition Classes
Logging
def innerChildren: Seq[QueryPlan[_]]
All the nodes that should be shown as a inner nested tree of this node.
All the nodes that should be shown as a inner nested tree of this node. For example, this can be used to show sub-queries.
Definition Classes
QueryPlan → TreeNode
def inputSet: AttributeSet
The set of all attributes that are input to this operator by its children.
The set of all attributes that are input to this operator by its children.
Definition Classes
QueryPlan
final def invalidateStatsCache(): Unit
Invalidates the stats cache.
Invalidates the stats cache. See stats for more information.
Definition Classes
LogicalPlanStats
def isCanonicalizedPlan: Boolean
Attributes
protected
Definition Classes
QueryPlan
final def isInstanceOf[T0]: Boolean
Definition Classes
Any
def isRuleIneffective(ruleId: RuleId): Boolean
Whether this TreeNode and its subtree have been marked as ineffective for the rule with id ruleId.
Whether this TreeNode and its subtree have been marked as ineffective for the rule with id ruleId.
ruleId
the unique id of the rule
returns
true if the rule has been marked as ineffective; false otherwise. If ruleId is UnknownId, it returns false.
Attributes
protected
Definition Classes
TreeNode
def isStreaming: Boolean
Returns true if this subtree has data from a streaming data source.
Returns true if this subtree has data from a streaming data source.
Definition Classes
LogicalPlan
def isTraceEnabled(): Boolean
Attributes
protected
Definition Classes
Logging
def jsonFields: List[JField]
Attributes
protected
Definition Classes
TreeNode
final def legacyWithNewChildren(newChildren: Seq[LogicalPlan]): LogicalPlan
Returns a copy of this node with the children replaced.
Returns a copy of this node with the children replaced. TODO: Validate somewhere (in debug mode?) that children are ordered correctly.
Attributes
protected
Definition Classes
TreeNode
def log: Logger
Attributes
protected
Definition Classes
Logging
def logDebug(msg: => String, throwable: Throwable): Unit
Attributes
protected
Definition Classes
Logging
def logDebug(msg: => String): Unit
Attributes
protected
Definition Classes
Logging
def logError(msg: => String, throwable: Throwable): Unit
Attributes
protected
Definition Classes
Logging
def logError(msg: => String): Unit
Attributes
protected
Definition Classes
Logging
def logInfo(msg: => String, throwable: Throwable): Unit
Attributes
protected
Definition Classes
Logging
def logInfo(msg: => String): Unit
Attributes
protected
Definition Classes
Logging
def logName: String
Attributes
protected
Definition Classes
Logging
def logTrace(msg: => String, throwable: Throwable): Unit
Attributes
protected
Definition Classes
Logging
def logTrace(msg: => String): Unit
Attributes
protected
Definition Classes
Logging
def logWarning(msg: => String, throwable: Throwable): Unit
Attributes
protected
Definition Classes
Logging
def logWarning(msg: => String): Unit
Attributes
protected
Definition Classes
Logging
def makeCopy(newArgs: Array[AnyRef]): LogicalPlan
Creates a copy of this type of tree node after a transformation.
Creates a copy of this type of tree node after a transformation. Must be overridden by child classes that have constructor arguments that are not present in the productIterator.
newArgs
the new product arguments.
Definition Classes
TreeNode
def map[A](f: (LogicalPlan) => A): Seq[A]
Returns a Seq containing the result of applying the given function to each node in this tree in a preorder traversal.
Returns a Seq containing the result of applying the given function to each node in this tree in a preorder traversal.
f
the function to be applied.
Definition Classes
TreeNode
final def mapChildren(f: (LogicalPlan) => LogicalPlan): LogicalPlan
Definition Classes
UnaryLike
def mapExpressions(f: (Expression) => Expression): UnresolvedSubqueryColumnAliases.this.type
Apply a map function to each expression present in this query operator, and return a new query operator based on the mapped expressions.
Apply a map function to each expression present in this query operator, and return a new query operator based on the mapped expressions.
Definition Classes
QueryPlan
def mapProductIterator[B](f: (Any) => B)(implicit arg0: ClassTag[B]): Array[B]
Efficient alternative to productIterator.map(f).toArray.
Efficient alternative to productIterator.map(f).toArray.
Attributes
protected
Definition Classes
TreeNode
def markRuleAsIneffective(ruleId: RuleId): Unit
Mark that a rule (with id ruleId) is ineffective for this TreeNode and its subtree.
Mark that a rule (with id ruleId) is ineffective for this TreeNode and its subtree.
ruleId
the unique identifier of the rule. If ruleId is UnknownId, it is a no-op.
Attributes
protected
Definition Classes
TreeNode
def maxRows: Option[Long]
Returns the maximum number of rows that this plan may compute.
Returns the maximum number of rows that this plan may compute.
Any operator that a Limit can be pushed passed should override this function (e.g., Union). Any operator that can push through a Limit should override this function (e.g., Project).
Definition Classes
LogicalPlan
def maxRowsPerPartition: Option[Long]
Returns the maximum number of rows this plan may compute on each partition.
Returns the maximum number of rows this plan may compute on each partition.
Definition Classes
LogicalPlan
def metadataOutput: Seq[Attribute]
Metadata fields that can be projected from this node.
Metadata fields that can be projected from this node. Should be overridden if the plan does not propagate its children's output.
Definition Classes
LogicalPlan
final def missingInput: AttributeSet
Attributes that are referenced by expressions but not provided by this node's children.
Attributes that are referenced by expressions but not provided by this node's children.
Definition Classes
QueryPlan
final def ne(arg0: AnyRef): Boolean
Definition Classes
AnyRef
def nodeName: String
Returns the name of this type of TreeNode.
Returns the name of this type of TreeNode. Defaults to the class name. Note that we remove the "Exec" suffix for physical operators here.
Definition Classes
TreeNode
final val nodePatterns: Seq[TreePattern]
Definition Classes
UnresolvedSubqueryColumnAliases → TreeNode
final def notify(): Unit
Definition Classes
AnyRef
Annotations
@native()
final def notifyAll(): Unit
Definition Classes
AnyRef
Annotations
@native()
def numberedTreeString: String
Returns a string representation of the nodes in this tree, where each operator is numbered.
Returns a string representation of the nodes in this tree, where each operator is numbered. The numbers can be used with TreeNode.apply to easily access specific subtrees.
The numbers are based on depth-first traversal of the tree (with innerChildren traversed first before children).
Definition Classes
TreeNode
val origin: Origin
Definition Classes
TreeNode
def otherCopyArgs: Seq[AnyRef]
Args to the constructor that should be copied, but not transformed.
Args to the constructor that should be copied, but not transformed. These are appended to the transformed args automatically by makeCopy
Attributes
protected
Definition Classes
TreeNode
def output: Seq[Attribute]
Definition Classes
UnresolvedSubqueryColumnAliases → QueryPlan
val outputColumnNames: Seq[String]
def outputOrdering: Seq[SortOrder]
Returns the output ordering that this plan generates.
Returns the output ordering that this plan generates.
Definition Classes
LogicalPlan
lazy val outputSet: AttributeSet
Returns the set of attributes that are output by this node.
Returns the set of attributes that are output by this node.
Definition Classes
QueryPlan
Annotations
@transient()
def p(number: Int): LogicalPlan
Returns the tree node at the specified number, used primarily for interactive debugging.
Returns the tree node at the specified number, used primarily for interactive debugging. Numbers for each node can be found in the numberedTreeString.
This is a variant of apply that returns the node as BaseType (if the type matches).
Definition Classes
TreeNode
def prettyJson: String
Definition Classes
TreeNode
def printSchema(): Unit
Prints out the schema in the tree format
Prints out the schema in the tree format
Definition Classes
QueryPlan
def producedAttributes: AttributeSet
The set of all attributes that are produced by this node.
The set of all attributes that are produced by this node.
Definition Classes
QueryPlan
def productElementNames: Iterator[String]
Definition Classes
Product
lazy val references: AttributeSet
All Attributes that appear in expressions from this operator.
All Attributes that appear in expressions from this operator. Note that this set does not include attributes that are implicitly referenced by being passed through to the output tuple.
Definition Classes
QueryPlan
Annotations
@transient()
def refresh(): Unit
Refreshes (or invalidates) any metadata/data cached in the plan recursively.
Refreshes (or invalidates) any metadata/data cached in the plan recursively.
Definition Classes
LogicalPlan
def resolve(nameParts: Seq[String], resolver: Resolver): Option[NamedExpression]
Optionally resolves the given strings to a NamedExpression based on the output of this LogicalPlan.
Optionally resolves the given strings to a NamedExpression based on the output of this LogicalPlan. The attribute is expressed as string in the following form: [scope].AttributeName.[nested].[fields]....
Definition Classes
LogicalPlan
def resolve(schema: StructType, resolver: Resolver): Seq[Attribute]
Resolves a given schema to concrete Attribute references in this query plan.
Resolves a given schema to concrete Attribute references in this query plan. This function should only be called on analyzed plans since it will throw AnalysisException for unresolved Attributes.
Definition Classes
LogicalPlan
def resolveChildren(nameParts: Seq[String], resolver: Resolver): Option[NamedExpression]
Optionally resolves the given strings to a NamedExpression using the input from all child nodes of this LogicalPlan.
Optionally resolves the given strings to a NamedExpression using the input from all child nodes of this LogicalPlan. The attribute is expressed as string in the following form: [scope].AttributeName.[nested].[fields]....
Definition Classes
LogicalPlan
def resolveExpressions(r: PartialFunction[Expression, Expression]): LogicalPlan
Recursively transforms the expressions of a tree, skipping nodes that have already been analyzed.
Recursively transforms the expressions of a tree, skipping nodes that have already been analyzed.
Definition Classes
AnalysisHelper
def resolveExpressionsWithPruning(cond: (TreePatternBits) => Boolean, ruleId: RuleId = UnknownRuleId)(rule: PartialFunction[Expression, Expression]): LogicalPlan
Recursively transforms the expressions of a tree, skipping nodes that have already been analyzed.
Recursively transforms the expressions of a tree, skipping nodes that have already been analyzed.
cond
a Lambda expression to prune tree traversals. If cond.apply returns false on a TreeNode T, skips processing T and its subtree; otherwise, processes T and its subtree recursively.
ruleId
is a unique Id for rule to prune unnecessary tree traversals. When it is UnknownRuleId, no pruning happens. Otherwise, if rule (with id ruleId) has been marked as in effective on a TreeNode T, skips processing T and its subtree. Do not pass it if the rule is not purely functional and reads a varying initial state for different invocations.
rule
the function used to transform this nodes children.
Definition Classes
AnalysisHelper
def resolveOperators(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan
Returns a copy of this node where rule has been recursively applied to the tree.
Returns a copy of this node where rule has been recursively applied to the tree. When rule does not apply to a given node, it is left unchanged. This function is similar to transform, but skips sub-trees that have already been marked as analyzed. Users should not expect a specific directionality. If a specific directionality is needed, resolveOperatorsUp or resolveOperatorsDown should be used.
rule
the function used to transform this nodes children.
Definition Classes
AnalysisHelper
def resolveOperatorsDown(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan
Similar to resolveOperatorsUp, but does it top-down.
Similar to resolveOperatorsUp, but does it top-down.
Definition Classes
AnalysisHelper
def resolveOperatorsDownWithPruning(cond: (TreePatternBits) => Boolean, ruleId: RuleId = UnknownRuleId)(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan
Similar to resolveOperatorsUpWithPruning, but does it top-down.
Similar to resolveOperatorsUpWithPruning, but does it top-down.
Definition Classes
AnalysisHelper
def resolveOperatorsUp(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan
Returns a copy of this node where rule has been recursively applied first to all of its children and then itself (post-order, bottom-up).
Returns a copy of this node where rule has been recursively applied first to all of its children and then itself (post-order, bottom-up). When rule does not apply to a given node, it is left unchanged. This function is similar to transformUp, but skips sub-trees that have already been marked as analyzed.
rule
the function used to transform this nodes children.
Definition Classes
AnalysisHelper
def resolveOperatorsUpWithNewOutput(rule: PartialFunction[LogicalPlan, (LogicalPlan, Seq[(Attribute, Attribute)])]): LogicalPlan
A variant of transformUpWithNewOutput, which skips touching already analyzed plan.
A variant of transformUpWithNewOutput, which skips touching already analyzed plan.
Definition Classes
AnalysisHelper
def resolveOperatorsUpWithPruning(cond: (TreePatternBits) => Boolean, ruleId: RuleId = UnknownRuleId)(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan
Returns a copy of this node where rule has been recursively applied first to all of its children and then itself (post-order, bottom-up).
Returns a copy of this node where rule has been recursively applied first to all of its children and then itself (post-order, bottom-up). When rule does not apply to a given node, it is left unchanged. This function is similar to transformUp, but skips sub-trees that have already been marked as analyzed.
cond
a Lambda expression to prune tree traversals. If cond.apply returns false on an operator T, skips processing T and its subtree; otherwise, processes T and its subtree recursively.
ruleId
is a unique Id for rule to prune unnecessary tree traversals. When it is UnknownRuleId, no pruning happens. Otherwise, if rule (with id ruleId) has been marked as in effective on an operator T, skips processing T and its subtree. Do not pass it if the rule is not purely functional and reads a varying initial state for different invocations.
rule
the function used to transform this nodes children.
Definition Classes
AnalysisHelper
def resolveOperatorsWithPruning(cond: (TreePatternBits) => Boolean, ruleId: RuleId = UnknownRuleId)(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan
Returns a copy of this node where rule has been recursively applied to the tree.
Returns a copy of this node where rule has been recursively applied to the tree. When rule does not apply to a given node, it is left unchanged. This function is similar to transform, but skips sub-trees that have already been marked as analyzed. Users should not expect a specific directionality. If a specific directionality is needed, resolveOperatorsUpWithPruning or resolveOperatorsDownWithPruning should be used.
cond
a Lambda expression to prune tree traversals. If cond.apply returns false on an operator T, skips processing T and its subtree; otherwise, processes T and its subtree recursively.
ruleId
is a unique Id for rule to prune unnecessary tree traversals. When it is UnknownRuleId, no pruning happens. Otherwise, if rule (with id ruleId) has been marked as in effective on an operator T, skips processing T and its subtree. Do not pass it if the rule is not purely functional and reads a varying initial state for different invocations.
rule
the function used to transform this nodes children.
Definition Classes
AnalysisHelper
def resolveQuoted(name: String, resolver: Resolver): Option[NamedExpression]
Given an attribute name, split it to name parts by dot, but don't split the name parts quoted by backticks, for example, ab.cd.efg should be split into two parts "ab.cd" and "efg".
Given an attribute name, split it to name parts by dot, but don't split the name parts quoted by backticks, for example, ab.cd.efg should be split into two parts "ab.cd" and "efg".
Definition Classes
LogicalPlan
lazy val resolved: Boolean
Returns true if this expression and all its children have been resolved to a specific schema and false if it still contains any unresolved placeholders.
Returns true if this expression and all its children have been resolved to a specific schema and false if it still contains any unresolved placeholders. Implementations of LogicalPlan can override this (e.g. UnresolvedRelation should return false).
Definition Classes
UnresolvedSubqueryColumnAliases → LogicalPlan
def rewriteAttrs(attrMap: AttributeMap[Attribute]): LogicalPlan
Definition Classes
QueryPlan
def sameOutput(other: LogicalPlan): Boolean
Returns true iff other's output is semantically the same, i.e.:
Returns true iff other's output is semantically the same, i.e.:
- it contains the same number of Attributes;
- references are the same;
- the order is equal too.
Definition Classes
LogicalPlan
final def sameResult(other: LogicalPlan): Boolean
Returns true when the given query plan will return the same results as this query plan.
Returns true when the given query plan will return the same results as this query plan.
Since its likely undecidable to generally determine if two given plans will produce the same results, it is okay for this function to return false, even if the results are actually the same. Such behavior will not affect correctness, only the application of performance enhancements like caching. However, it is not acceptable to return true if the results could possibly be different.
This function performs a modified version of equality that is tolerant of cosmetic differences like attribute naming and or expression id differences.
Definition Classes
QueryPlan
lazy val schema: StructType
Definition Classes
QueryPlan
def schemaString: String
Returns the output schema in the tree format.
Returns the output schema in the tree format.
Definition Classes
QueryPlan
final def semanticHash(): Int
Returns a hashCode for the calculation performed by this plan.
Returns a hashCode for the calculation performed by this plan. Unlike the standard hashCode, an attempt has been made to eliminate cosmetic differences.
Definition Classes
QueryPlan
def setTagValue[T](tag: TreeNodeTag[T], value: T): Unit
Definition Classes
TreeNode
def simpleString(maxFields: Int): String
ONE line description of this node.
ONE line description of this node.
maxFields
Maximum number of fields that will be converted to strings. Any elements beyond the limit will be dropped.
Definition Classes
QueryPlan → TreeNode
def simpleStringWithNodeId(): String
ONE line description of this node containing the node identifier.
ONE line description of this node containing the node identifier.
Definition Classes
QueryPlan → TreeNode
def statePrefix: String
A prefix string used when printing the plan.
A prefix string used when printing the plan.
We use "!" to indicate an invalid plan, and "'" to indicate an unresolved plan.
Attributes
protected
Definition Classes
LogicalPlan → QueryPlan
def stats: Statistics
Returns the estimated statistics for the current logical plan node.
Returns the estimated statistics for the current logical plan node. Under the hood, this method caches the return value, which is computed based on the configuration passed in the first time. If the configuration changes, the cache can be invalidated by calling invalidateStatsCache().
Definition Classes
LogicalPlanStats
val statsCache: Option[Statistics]
A cache for the estimated statistics, such that it will only be computed once.
A cache for the estimated statistics, such that it will only be computed once.
Attributes
protected
Definition Classes
LogicalPlanStats
def stringArgs: Iterator[Any]
The arguments that should be included in the arg string.
The arguments that should be included in the arg string. Defaults to the productIterator.
Attributes
protected
Definition Classes
TreeNode
def subqueries: Seq[LogicalPlan]
All the top-level subqueries of the current plan node.
All the top-level subqueries of the current plan node. Nested subqueries are not included.
Definition Classes
QueryPlan
def subqueriesAll: Seq[LogicalPlan]
All the subqueries of the current plan node and all its children.
All the subqueries of the current plan node and all its children. Nested subqueries are also included.
Definition Classes
QueryPlan
final def synchronized[T0](arg0: => T0): T0
Definition Classes
AnyRef
def toJSON: String
Definition Classes
TreeNode
def toString(): String
Definition Classes
TreeNode → AnyRef → Any
def transform(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan
Returns a copy of this node where rule has been recursively applied to the tree.
Returns a copy of this node where rule has been recursively applied to the tree. When rule does not apply to a given node it is left unchanged. Users should not expect a specific directionality. If a specific directionality is needed, transformDown or transformUp should be used.
rule
the function used to transform this nodes children
Definition Classes
TreeNode
def transformAllExpressions(rule: PartialFunction[Expression, Expression]): UnresolvedSubqueryColumnAliases.this.type
Returns the result of running transformExpressions on this node and all its children.
Returns the result of running transformExpressions on this node and all its children. Note that this method skips expressions inside subqueries.
Definition Classes
QueryPlan
def transformAllExpressionsWithPruning(cond: (TreePatternBits) => Boolean, ruleId: RuleId = UnknownRuleId)(rule: PartialFunction[Expression, Expression]): UnresolvedSubqueryColumnAliases.this.type
Use resolveExpressions() in the analyzer.
Use resolveExpressions() in the analyzer.
Definition Classes
AnalysisHelper → QueryPlan
See also
QueryPlan.transformAllExpressionsWithPruning()
def transformDown(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan
Returns a copy of this node where rule has been recursively applied to it and all of its children (pre-order).
Returns a copy of this node where rule has been recursively applied to it and all of its children (pre-order). When rule does not apply to a given node it is left unchanged.
rule
the function used to transform this nodes children
Definition Classes
TreeNode
def transformDownWithPruning(cond: (TreePatternBits) => Boolean, ruleId: RuleId = UnknownRuleId)(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan
In analyzer, use resolveOperatorsDown() instead.
In analyzer, use resolveOperatorsDown() instead. If this is used in the analyzer, an exception will be thrown in test mode. It is however OK to call this function within the scope of a resolveOperatorsDown() call.
cond
a Lambda expression to prune tree traversals. If cond.apply returns false on a TreeNode T, skips processing T and its subtree; otherwise, processes T and its subtree recursively.
ruleId
is a unique Id for rule to prune unnecessary tree traversals. When it is UnknownRuleId, no pruning happens. Otherwise, if rule (with id ruleId) has been marked as in effective on a TreeNode T, skips processing T and its subtree. Do not pass it if the rule is not purely functional and reads a varying initial state for different invocations.
rule
the function used to transform this nodes children
Definition Classes
AnalysisHelper → TreeNode
See also
org.apache.spark.sql.catalyst.trees.TreeNode.transformDownWithPruning().
def transformExpressions(rule: PartialFunction[Expression, Expression]): UnresolvedSubqueryColumnAliases.this.type
Runs transformExpressionsDown with rule on all expressions present in this query operator.
Runs transformExpressionsDown with rule on all expressions present in this query operator. Users should not expect a specific directionality. If a specific directionality is needed, transformExpressionsDown or transformExpressionsUp should be used.
rule
the rule to be applied to every expression in this operator.
Definition Classes
QueryPlan
def transformExpressionsDown(rule: PartialFunction[Expression, Expression]): UnresolvedSubqueryColumnAliases.this.type
Runs transformDown with rule on all expressions present in this query operator.
Runs transformDown with rule on all expressions present in this query operator.
rule
the rule to be applied to every expression in this operator.
Definition Classes
QueryPlan
def transformExpressionsDownWithPruning(cond: (TreePatternBits) => Boolean, ruleId: RuleId = UnknownRuleId)(rule: PartialFunction[Expression, Expression]): UnresolvedSubqueryColumnAliases.this.type
Runs transformDownWithPruning with rule on all expressions present in this query operator.
Runs transformDownWithPruning with rule on all expressions present in this query operator.
cond
a Lambda expression to prune tree traversals. If cond.apply returns false on an expression T, skips processing T and its subtree; otherwise, processes T and its subtree recursively.
ruleId
is a unique Id for rule to prune unnecessary tree traversals. When it is UnknownRuleId, no pruning happens. Otherwise, if rule (with id ruleId) has been marked as in effective on an expression T, skips processing T and its subtree. Do not pass it if the rule is not purely functional and reads a varying initial state for different invocations.
rule
the rule to be applied to every expression in this operator.
Definition Classes
QueryPlan
def transformExpressionsUp(rule: PartialFunction[Expression, Expression]): UnresolvedSubqueryColumnAliases.this.type
Runs transformUp with rule on all expressions present in this query operator.
Runs transformUp with rule on all expressions present in this query operator.
rule
the rule to be applied to every expression in this operator.
Definition Classes
QueryPlan
def transformExpressionsUpWithPruning(cond: (TreePatternBits) => Boolean, ruleId: RuleId = UnknownRuleId)(rule: PartialFunction[Expression, Expression]): UnresolvedSubqueryColumnAliases.this.type
Runs transformExpressionsUpWithPruning with rule on all expressions present in this query operator.
Runs transformExpressionsUpWithPruning with rule on all expressions present in this query operator.
cond
a Lambda expression to prune tree traversals. If cond.apply returns false on an expression T, skips processing T and its subtree; otherwise, processes T and its subtree recursively.
ruleId
is a unique Id for rule to prune unnecessary tree traversals. When it is UnknownRuleId, no pruning happens. Otherwise, if rule (with id ruleId) has been marked as in effective on an expression T, skips processing T and its subtree. Do not pass it if the rule is not purely functional and reads a varying initial state for different invocations.
rule
the rule to be applied to every expression in this operator.
Definition Classes
QueryPlan
def transformExpressionsWithPruning(cond: (TreePatternBits) => Boolean, ruleId: RuleId = UnknownRuleId)(rule: PartialFunction[Expression, Expression]): UnresolvedSubqueryColumnAliases.this.type
Runs transformExpressionsDownWithPruning with rule on all expressions present in this query operator.
Runs transformExpressionsDownWithPruning with rule on all expressions present in this query operator. Users should not expect a specific directionality. If a specific directionality is needed, transformExpressionsDown or transformExpressionsUp should be used.
cond
a Lambda expression to prune tree traversals. If cond.apply returns false on an expression T, skips processing T and its subtree; otherwise, processes T and its subtree recursively.
ruleId
is a unique Id for rule to prune unnecessary tree traversals. When it is UnknownRuleId, no pruning happens. Otherwise, if rule(with id ruleId) has been marked as in effective on an expression T, skips processing T and its subtree. Do not pass it if the rule is not purely functional and reads a varying initial state for different invocations.
rule
the rule to be applied to every expression in this operator.
Definition Classes
QueryPlan
def transformUp(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan
Returns a copy of this node where rule has been recursively applied first to all of its children and then itself (post-order).
Returns a copy of this node where rule has been recursively applied first to all of its children and then itself (post-order). When rule does not apply to a given node, it is left unchanged.
rule
the function used to transform this nodes children
Definition Classes
TreeNode
def transformUpWithBeforeAndAfterRuleOnChildren(cond: (LogicalPlan) => Boolean, ruleId: RuleId = UnknownRuleId)(rule: PartialFunction[(LogicalPlan, LogicalPlan), LogicalPlan]): LogicalPlan
Returns a copy of this node where rule has been recursively applied first to all of its children and then itself (post-order).
Returns a copy of this node where rule has been recursively applied first to all of its children and then itself (post-order). When rule does not apply to a given node, it is left unchanged.
cond
a Lambda expression to prune tree traversals. If cond.apply returns false on a TreeNode T, skips processing T and its subtree; otherwise, processes T and its subtree recursively.
ruleId
is a unique Id for rule to prune unnecessary tree traversals. When it is UnknownRuleId, no pruning happens. Otherwise, if rule (with id ruleId) has been marked as in effective on a TreeNode T, skips processing T and its subtree. Do not pass it if the rule is not purely functional and reads a varying initial state for different invocations.
rule
the function use to transform this node and its descendant nodes. The function takes a tuple as its input, where the first/second field is the before/after image of applying the rule on the node's children.
Definition Classes
TreeNode
def transformUpWithNewOutput(rule: PartialFunction[LogicalPlan, (LogicalPlan, Seq[(Attribute, Attribute)])], skipCond: (LogicalPlan) => Boolean, canGetOutput: (LogicalPlan) => Boolean): LogicalPlan
A variant of transformUp, which takes care of the case that the rule replaces a plan node with a new one that has different output expr IDs, by updating the attribute references in the parent nodes accordingly.
A variant of transformUp, which takes care of the case that the rule replaces a plan node with a new one that has different output expr IDs, by updating the attribute references in the parent nodes accordingly.
rule
the function to transform plan nodes, and return new nodes with attributes mapping from old attributes to new attributes. The attribute mapping will be used to rewrite attribute references in the parent nodes.
skipCond
a boolean condition to indicate if we can skip transforming a plan node to save time.
canGetOutput
a boolean condition to indicate if we can get the output of a plan node to prune the attributes mapping to be propagated. The default value is true as only unresolved logical plan can't get output.
Definition Classes
AnalysisHelper → QueryPlan
def transformUpWithPruning(cond: (TreePatternBits) => Boolean, ruleId: RuleId = UnknownRuleId)(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan
Use resolveOperators() in the analyzer.
Use resolveOperators() in the analyzer.
cond
a Lambda expression to prune tree traversals. If cond.apply returns false on a TreeNode T, skips processing T and its subtree; otherwise, processes T and its subtree recursively.
ruleId
is a unique Id for rule to prune unnecessary tree traversals. When it is UnknownRuleId, no pruning happens. Otherwise, if rule (with id ruleId) has been marked as in effective on a TreeNode T, skips processing T and its subtree. Do not pass it if the rule is not purely functional and reads a varying initial state for different invocations.
rule
the function used to transform this nodes children
Definition Classes
AnalysisHelper → TreeNode
See also
org.apache.spark.sql.catalyst.trees.TreeNode.transformUpWithPruning()
def transformUpWithSubqueries(f: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan
Returns a copy of this node where the given partial function has been recursively applied first to the subqueries in this node's children, then this node's children, and finally this node itself (post-order).
Returns a copy of this node where the given partial function has been recursively applied first to the subqueries in this node's children, then this node's children, and finally this node itself (post-order). When the partial function does not apply to a given node, it is left unchanged.
Definition Classes
QueryPlan
def transformWithPruning(cond: (TreePatternBits) => Boolean, ruleId: RuleId = UnknownRuleId)(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan
Returns a copy of this node where rule has been recursively applied to the tree.
Returns a copy of this node where rule has been recursively applied to the tree. When rule does not apply to a given node it is left unchanged. Users should not expect a specific directionality. If a specific directionality is needed, transformDown or transformUp should be used.
cond
a Lambda expression to prune tree traversals. If cond.apply returns false on a TreeNode T, skips processing T and its subtree; otherwise, processes T and its subtree recursively.
ruleId
is a unique Id for rule to prune unnecessary tree traversals. When it is UnknownRuleId, no pruning happens. Otherwise, if rule (with id ruleId) has been marked as in effective on a TreeNode T, skips processing T and its subtree. Do not pass it if the rule is not purely functional and reads a varying initial state for different invocations.
rule
the function used to transform this nodes children
Definition Classes
TreeNode
lazy val treePatternBits: BitSet
A BitSet of tree patterns for this TreeNode and its subtree.
A BitSet of tree patterns for this TreeNode and its subtree. If this TreeNode and its subtree contains a pattern P, the corresponding bit for P.id is set in this BitSet.
Definition Classes
QueryPlan → TreeNode → TreePatternBits
def treeString(append: (String) => Unit, verbose: Boolean, addSuffix: Boolean, maxFields: Int, printOperatorId: Boolean): Unit
Definition Classes
TreeNode
final def treeString(verbose: Boolean, addSuffix: Boolean = false, maxFields: Int = SQLConf.get.maxToStringFields, printOperatorId: Boolean = false): String
Definition Classes
TreeNode
final def treeString: String
Returns a string representation of the nodes in this tree
Returns a string representation of the nodes in this tree
Definition Classes
TreeNode
def unsetTagValue[T](tag: TreeNodeTag[T]): Unit
Definition Classes
TreeNode
def updateOuterReferencesInSubquery(plan: LogicalPlan, attrMap: AttributeMap[Attribute]): LogicalPlan
The outer plan may have old references and the function below updates the outer references to refer to the new attributes.
The outer plan may have old references and the function below updates the outer references to refer to the new attributes.
Definition Classes
AnalysisHelper → QueryPlan
lazy val validConstraints: ExpressionSet
This method can be overridden by any child class of QueryPlan to specify a set of constraints based on the given operator's constraint propagation logic.
This method can be overridden by any child class of QueryPlan to specify a set of constraints based on the given operator's constraint propagation logic. These constraints are then canonicalized and filtered automatically to contain only those attributes that appear in the outputSet.
See Canonicalize for more details.
Attributes
protected
Definition Classes
UnaryNode → QueryPlanConstraints
def verboseString(maxFields: Int): String
ONE line description of this node with more information
ONE line description of this node with more information
Definition Classes
QueryPlan → TreeNode
def verboseStringWithOperatorId(): String
Definition Classes
QueryPlan
def verboseStringWithSuffix(maxFields: Int): String
ONE line description of this node with some suffix information
ONE line description of this node with some suffix information
Definition Classes
LogicalPlan → TreeNode
final def wait(): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
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()
def withNewChildInternal(newChild: LogicalPlan): UnresolvedSubqueryColumnAliases
Attributes
protected
Definition Classes
UnresolvedSubqueryColumnAliases → UnaryLike
final def withNewChildren(newChildren: Seq[LogicalPlan]): LogicalPlan
Definition Classes
TreeNode
final def withNewChildrenInternal(newChildren: IndexedSeq[LogicalPlan]): LogicalPlan
Definition Classes
UnaryLike

Packages

UnresolvedSubqueryColumnAliases

case class UnresolvedSubqueryColumnAliases(outputColumnNames: Seq[String], child: LogicalPlan) extends LogicalPlan with UnaryNode with Product with Serializable

Instance Constructors

Value Members

Inherited from Serializable

Inherited from UnaryNode

Inherited from UnaryLike[LogicalPlan]

Inherited from LogicalPlan

Inherited from Logging

Inherited from QueryPlanConstraints

Inherited from ConstraintHelper

Inherited from LogicalPlanStats

Inherited from AnalysisHelper

Inherited from QueryPlan[LogicalPlan]

Inherited from SQLConfHelper

Inherited from TreeNode[LogicalPlan]

Inherited from TreePatternBits

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Ungrouped

Packages

UnresolvedSubqueryColumnAliases

case class UnresolvedSubqueryColumnAliases(outputColumnNames: Seq[String], child: LogicalPlan) extends LogicalPlan with UnaryNode with Product with Serializable

Instance Constructors

Value Members

Inherited from Serializable

Inherited from UnaryNode

Inherited from UnaryLike[LogicalPlan]

Inherited from LogicalPlan

Inherited from Logging

Inherited from QueryPlanConstraints

Inherited from ConstraintHelper

Inherited from LogicalPlanStats

Inherited from AnalysisHelper

Inherited from QueryPlan[LogicalPlan]

Inherited from SQLConfHelper

Inherited from TreeNode[LogicalPlan]

Inherited from TreePatternBits

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Ungrouped

UnresolvedSubqueryColumnAliases