trait CheckAnalysis extends PredicateHelper with LookupCatalog
Throws user facing errors when passed invalid queries that fail to analyze.
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- final def !=(arg0: Any): Boolean
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- def buildBalancedPredicate(expressions: Seq[Expression], op: (Expression, Expression) => Expression): Expression
Builds a balanced output predicate in bottom up approach, by applying binary operator op pair by pair on input predicates exprs recursively.
Builds a balanced output predicate in bottom up approach, by applying binary operator op pair by pair on input predicates exprs recursively. Example: exprs = [a, b, c, d], op = And, returns (a And b) And (c And d) exprs = [a, b, c, d, e, f], op = And, returns ((a And b) And (c And d)) And (e And f)
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- PredicateHelper
- def canEvaluate(expr: Expression, plan: LogicalPlan): Boolean
Returns true if
exprcan be evaluated using only the output ofplan.Returns true if
exprcan be evaluated using only the output ofplan. This method can be used to determine when it is acceptable to move expression evaluation within a query plan.For example consider a join between two relations R(a, b) and S(c, d).
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canEvaluate(EqualTo(a,b), R)returnstrue-canEvaluate(EqualTo(a,c), R)returnsfalse-canEvaluate(Literal(1), R)returnstrueas literals CAN be evaluated on any plan- Attributes
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- PredicateHelper
- def canEvaluateWithinJoin(expr: Expression): Boolean
Returns true iff
exprcould be evaluated as a condition within join.Returns true iff
exprcould be evaluated as a condition within join.- Attributes
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- PredicateHelper
- def checkAnalysis(plan: LogicalPlan): Unit
- def clone(): AnyRef
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- @throws(classOf[java.lang.CloneNotSupportedException]) @native()
- def containsMultipleGenerators(exprs: Seq[Expression]): Boolean
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- protected
- def currentCatalog: CatalogPlugin
Returns the current catalog set.
Returns the current catalog set.
- Definition Classes
- LookupCatalog
- final def eq(arg0: AnyRef): Boolean
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- def equals(arg0: AnyRef): Boolean
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- val extendedCheckRules: Seq[(LogicalPlan) => Unit]
Override to provide additional checks for correct analysis.
Override to provide additional checks for correct analysis. These rules will be evaluated after our built-in check rules.
- def extractPredicatesWithinOutputSet(condition: Expression, outputSet: AttributeSet): Option[Expression]
Returns a filter that its reference is a subset of
outputSetand it contains the maximum constraints fromcondition.Returns a filter that its reference is a subset of
outputSetand it contains the maximum constraints fromcondition. This is used for predicate pushdown. When there is no such filter,Noneis returned.- Attributes
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- PredicateHelper
- def failAnalysis(msg: String): Nothing
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- def finalize(): Unit
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- def findExpressionAndTrackLineageDown(exp: Expression, plan: LogicalPlan): Option[(Expression, LogicalPlan)]
Find the origin of where the input references of expression exp were scanned in the tree of plan, and if they originate from a single leaf node.
Find the origin of where the input references of expression exp were scanned in the tree of plan, and if they originate from a single leaf node. Returns optional tuple with Expression, undoing any projections and aliasing that has been done along the way from plan to origin, and the origin LeafNode plan from which all the exp
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- PredicateHelper
- def getAliasMap(exprs: Seq[NamedExpression]): AttributeMap[Alias]
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- AliasHelper
- def getAliasMap(plan: Aggregate): AttributeMap[Alias]
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- AliasHelper
- def getAliasMap(plan: Project): AttributeMap[Alias]
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- final def getClass(): Class[_ <: AnyRef]
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- def hasMapType(dt: DataType): Boolean
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- def hashCode(): Int
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- def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
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- def initializeLogIfNecessary(isInterpreter: Boolean): Unit
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- def isNullIntolerant(expr: Expression): Boolean
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- PredicateHelper
- def isTraceEnabled(): Boolean
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- def log: Logger
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- def logDebug(msg: => String, throwable: Throwable): Unit
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- def logDebug(msg: => String): Unit
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- def logError(msg: => String, throwable: Throwable): Unit
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- def logError(msg: => String): Unit
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- def logInfo(msg: => String, throwable: Throwable): Unit
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- def logInfo(msg: => String): Unit
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- def logName: String
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- def logTrace(msg: => String, throwable: Throwable): Unit
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- def logTrace(msg: => String): Unit
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- def logWarning(msg: => String, throwable: Throwable): Unit
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- def logWarning(msg: => String): Unit
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- Logging
- def mapColumnInSetOperation(plan: LogicalPlan): Option[Attribute]
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- final def ne(arg0: AnyRef): Boolean
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- final def notify(): Unit
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- final def notifyAll(): Unit
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- def outputWithNullability(output: Seq[Attribute], nonNullAttrExprIds: Seq[ExprId]): Seq[Attribute]
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- protected
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- PredicateHelper
- def parseSessionCatalogFunctionIdentifier(nameParts: Seq[String]): FunctionIdentifier
- Definition Classes
- LookupCatalog
- def replaceAlias(expr: Expression, aliasMap: AttributeMap[Alias]): Expression
Replace all attributes, that reference an alias, with the aliased expression
Replace all attributes, that reference an alias, with the aliased expression
- Attributes
- protected
- Definition Classes
- AliasHelper
- def replaceAliasButKeepName(expr: NamedExpression, aliasMap: AttributeMap[Alias]): NamedExpression
Replace all attributes, that reference an alias, with the aliased expression, but keep the name of the outermost attribute.
Replace all attributes, that reference an alias, with the aliased expression, but keep the name of the outermost attribute.
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- protected
- Definition Classes
- AliasHelper
- def splitConjunctivePredicates(condition: Expression): Seq[Expression]
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- Definition Classes
- PredicateHelper
- def splitDisjunctivePredicates(condition: Expression): Seq[Expression]
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- PredicateHelper
- final def synchronized[T0](arg0: => T0): T0
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- def toString(): String
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- def trimAliases(e: Expression): Expression
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- Definition Classes
- AliasHelper
- def trimNonTopLevelAliases[T <: Expression](e: T): T
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- AliasHelper
- final def wait(): Unit
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- final def wait(arg0: Long, arg1: Int): Unit
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- object AsFunctionIdentifier
- Definition Classes
- LookupCatalog
- object AsTableIdentifier
Extract legacy table identifier from a multi-part identifier.
Extract legacy table identifier from a multi-part identifier.
For legacy support only. Please use CatalogAndIdentifier instead on DSv2 code paths.
- Definition Classes
- LookupCatalog
- object CatalogAndIdentifier
Extract catalog and identifier from a multi-part name with the current catalog if needed.
Extract catalog and identifier from a multi-part name with the current catalog if needed. Catalog name takes precedence over identifier, but for a single-part name, identifier takes precedence over catalog name.
Note that, this pattern is used to look up permanent catalog objects like table, view, function, etc. If you need to look up temp objects like temp view, please do it separately before calling this pattern, as temp objects don't belong to any catalog.
- Definition Classes
- LookupCatalog
- object CatalogAndNamespace
Extract catalog and namespace from a multi-part name with the current catalog if needed.
Extract catalog and namespace from a multi-part name with the current catalog if needed. Catalog name takes precedence over namespaces.
- Definition Classes
- LookupCatalog
- object NonSessionCatalogAndIdentifier
Extract non-session catalog and identifier from a multi-part identifier.
Extract non-session catalog and identifier from a multi-part identifier.
- Definition Classes
- LookupCatalog
- object SessionCatalogAndIdentifier
Extract session catalog and identifier from a multi-part identifier.
Extract session catalog and identifier from a multi-part identifier.
- Definition Classes
- LookupCatalog