Spark Project Catalyst 3.5.0 API - org.apache.spark.sql.catalyst.util.GeneratedColumnAnalyzer

object AddMetadataColumns extends Rule[LogicalPlan]

Adds metadata columns to output for child relations when nodes are missing resolved attributes.

References to metadata columns are resolved using columns from LogicalPlan.metadataOutput, but the relation's output does not include the metadata columns until the relation is replaced. Unless this rule adds metadata to the relation's output, the analyzer will detect that nothing produces the columns.

This rule only adds metadata columns when a node is resolved but is missing input from its children. This ensures that metadata columns are not added to the plan unless they are used. By checking only resolved nodes, this ensures that * expansion is already done so that metadata columns are not accidentally selected by *. This rule resolves operators downwards to avoid projecting away metadata columns prematurely.

Definition Classes: Analyzer

object ExtractGenerator extends Rule[LogicalPlan]

Extracts Generator from the projectList of a Project operator and creates Generate operator under Project.

This rule will throw AnalysisException for following cases: 1. Generator is nested in expressions, e.g. SELECT explode(list) + 1 FROM tbl 2. more than one Generator is found in projectList, e.g. SELECT explode(list), explode(list) FROM tbl 3. Generator is found in other operators that are not Project or Generate, e.g. SELECT * FROM tbl SORT BY explode(list)

Definition Classes: Analyzer

object ExtractWindowExpressions extends Rule[LogicalPlan]

Extracts WindowExpressions from the projectList of a Project operator and aggregateExpressions of an Aggregate operator and creates individual Window operators for every distinct WindowSpecDefinition.

This rule handles three cases:

A Project having WindowExpressions in its projectList;
An Aggregate having WindowExpressions in its aggregateExpressions.
A Filter->Aggregate pattern representing GROUP BY with a HAVING clause and the Aggregate has WindowExpressions in its aggregateExpressions. Note: If there is a GROUP BY clause in the query, aggregations and corresponding filters (expressions in the HAVING clause) should be evaluated before any WindowExpression. If a query has SELECT DISTINCT, the DISTINCT part should be evaluated after all WindowExpressions.

Note: ResolveLateralColumnAliasReference rule is applied before this rule. To guarantee this order, we make sure this rule applies only when the Project or Aggregate doesn't contain any LATERAL_COLUMN_ALIAS_REFERENCE.

For every case, the transformation works as follows: 1. For a list of Expressions (a projectList or an aggregateExpressions), partitions it two lists of Expressions, one for all WindowExpressions and another for all regular expressions. 2. For all WindowExpressions, groups them based on their WindowSpecDefinitions and WindowFunctionTypes. 3. For every distinct WindowSpecDefinition and WindowFunctionType, creates a Window operator and inserts it into the plan tree.

Definition Classes: Analyzer

object GlobalAggregates extends Rule[LogicalPlan]

Turns projections that contain aggregate expressions into aggregations.

Definition Classes: Analyzer

object HandleNullInputsForUDF extends Rule[LogicalPlan]

Correctly handle null primitive inputs for UDF by adding extra If expression to do the null check.

Correctly handle null primitive inputs for UDF by adding extra If expression to do the null check. When user defines a UDF with primitive parameters, there is no way to tell if the primitive parameter is null or not, so here we assume the primitive input is null-propagatable and we should return null if the input is null.

Definition Classes: Analyzer

object HandleSpecialCommand extends Rule[LogicalPlan]

A rule to handle special commands that need to be notified when analysis is done.

A rule to handle special commands that need to be notified when analysis is done. This rule should run after all other analysis rules are run.

Definition Classes: Analyzer

object LookupFunctions extends Rule[LogicalPlan]

Checks whether a function identifier referenced by an UnresolvedFunction is defined in the function registry.

Checks whether a function identifier referenced by an UnresolvedFunction is defined in the function registry. Note that this rule doesn't try to resolve the UnresolvedFunction. It only performs simple existence check according to the function identifier to quickly identify undefined functions without triggering relation resolution, which may incur potentially expensive partition/schema discovery process in some cases. In order to avoid duplicate external functions lookup, the external function identifier will store in the local hash set externalFunctionNameSet.

Definition Classes: Analyzer
See also: ResolveFunctions
https://issues.apache.org/jira/browse/SPARK-19737

object ResolveAggregateFunctions extends Rule[LogicalPlan]

This rule finds aggregate expressions that are not in an aggregate operator.

This rule finds aggregate expressions that are not in an aggregate operator. For example, those in a HAVING clause or ORDER BY clause. These expressions are pushed down to the underlying aggregate operator and then projected away after the original operator.

We need to make sure the expressions all fully resolved before looking for aggregate functions and group by expressions from them.

Definition Classes: Analyzer

object ResolveAliases extends Rule[LogicalPlan]

Replaces UnresolvedAliass with concrete aliases.

Definition Classes: Analyzer

object ResolveBinaryArithmetic extends Rule[LogicalPlan]

For Add: 1.

For Add: 1. if both side are interval, stays the same; 2. else if one side is date and the other is interval, turns it to DateAddInterval; 3. else if one side is interval, turns it to TimeAdd; 4. else if one side is date, turns it to DateAdd ; 5. else stays the same.

For Subtract: 1. if both side are interval, stays the same; 2. else if the left side is date and the right side is interval, turns it to -r); 3. else if the right side is an interval, turns it to -r); 4. else if one side is timestamp, turns it to SubtractTimestamps; 5. else if the right side is date, turns it to DateDiff/SubtractDates; 6. else if the left side is date, turns it to DateSub; 7. else turns it to stays the same.

For Multiply: 1. If one side is interval, turns it to MultiplyInterval; 2. otherwise, stays the same.

For Divide: 1. If the left side is interval, turns it to DivideInterval; 2. otherwise, stays the same.

Definition Classes: Analyzer

object ResolveDeserializer extends Rule[LogicalPlan]

Replaces UnresolvedDeserializer with the deserialization expression that has been resolved to the given input attributes.

Definition Classes: Analyzer

object ResolveEncodersInUDF extends Rule[LogicalPlan]

Resolve the encoders for the UDF by explicitly given the attributes.

Resolve the encoders for the UDF by explicitly given the attributes. We give the attributes explicitly in order to handle the case where the data type of the input value is not the same with the internal schema of the encoder, which could cause data loss. For example, the encoder should not cast the input value to Decimal(38, 18) if the actual data type is Decimal(30, 0).

The resolved encoders then will be used to deserialize the internal row to Scala value.

Definition Classes: Analyzer

object ResolveFieldNameAndPosition extends Rule[LogicalPlan]

Rule to resolve, normalize and rewrite field names based on case sensitivity for commands.

Definition Classes: Analyzer

object ResolveFunctions extends Rule[LogicalPlan]

Replaces UnresolvedFunctionNames with concrete LogicalPlans.

Replaces UnresolvedFunctionNames with concrete LogicalPlans. Replaces UnresolvedFunctions with concrete Expressions. Replaces UnresolvedGenerators with concrete Expressions. Replaces UnresolvedTableValuedFunctions with concrete LogicalPlans.

Definition Classes: Analyzer

object ResolveGenerate extends Rule[LogicalPlan]

Rewrites table generating expressions that either need one or more of the following in order to be resolved:

concrete attribute references for their output.
to be relocated from a SELECT clause (i.e. from a Project) into a Generate).

Names for the output Attributes are extracted from Alias or MultiAlias expressions that wrap the Generator.

Definition Classes: Analyzer

object ResolveGroupingAnalytics extends Rule[LogicalPlan]

Definition Classes: Analyzer

object ResolveInsertInto extends ResolveInsertionBase

Handle INSERT INTO for DSv2

Definition Classes: Analyzer

object ResolveNaturalAndUsingJoin extends Rule[LogicalPlan]

Removes natural or using joins by calculating output columns based on output from two sides, Then apply a Project on a normal Join to eliminate natural or using join.

Definition Classes: Analyzer

object ResolveNewInstance extends Rule[LogicalPlan]

Resolves NewInstance by finding and adding the outer scope to it if the object being constructed is an inner class.

Definition Classes: Analyzer

object ResolveOrdinalInOrderByAndGroupBy extends Rule[LogicalPlan]

In many dialects of SQL it is valid to use ordinal positions in order/sort by and group by clauses.

In many dialects of SQL it is valid to use ordinal positions in order/sort by and group by clauses. This rule is to convert ordinal positions to the corresponding expressions in the select list. This support is introduced in Spark 2.0.

- When the sort references or group by expressions are not integer but foldable expressions, just ignore them. - When spark.sql.orderByOrdinal/spark.sql.groupByOrdinal is set to false, ignore the position numbers too.

Before the release of Spark 2.0, the literals in order/sort by and group by clauses have no effect on the results.

Definition Classes: Analyzer

object ResolveOutputRelation extends Rule[LogicalPlan]

Resolves columns of an output table from the data in a logical plan.

Resolves columns of an output table from the data in a logical plan. This rule will:

- Reorder columns when the write is by name - Insert casts when data types do not match - Insert aliases when column names do not match - Detect plans that are not compatible with the output table and throw AnalysisException

Definition Classes: Analyzer

object ResolvePivot extends Rule[LogicalPlan]

Definition Classes: Analyzer

object ResolveRandomSeed extends Rule[LogicalPlan]

Set the seed for random number generation.

Definition Classes: Analyzer

object ResolveReferences extends Rule[LogicalPlan] with ColumnResolutionHelper

Resolves column references in the query plan.

Resolves column references in the query plan. Basically it transform the query plan tree bottom up, and only try to resolve references for a plan node if all its children nodes are resolved, and there is no conflicting attributes between the children nodes (see hasConflictingAttrs for details).

The general workflow to resolve references: 1. Expands the star in Project/Aggregate/Generate. 2. Resolves the columns to AttributeReference with the output of the children plans. This includes metadata columns as well. 3. Resolves the columns to literal function which is allowed to be invoked without braces, e.g. SELECT col, current_date FROM t. 4. Resolves the columns to outer references with the outer plan if we are resolving subquery expressions.

Some plan nodes have special column reference resolution logic, please read these sub-rules for details:

Note: even if we use a single rule to resolve columns, it's still non-trivial to have a reliable column resolution order, as the rule will be executed multiple times, with other rules in the same batch. We should resolve columns with the next option only if all the previous options are permanently not applicable. If the current option can be applicable in the next iteration (other rules update the plan), we should not try the next option.

Definition Classes: Analyzer

object ResolveRelations extends Rule[LogicalPlan]

Replaces unresolved relations (tables and views) with concrete relations from the catalog.

Definition Classes: Analyzer

object ResolveSubquery extends Rule[LogicalPlan]

This rule resolves and rewrites subqueries inside expressions.

Note: CTEs are handled in CTESubstitution.

Definition Classes: Analyzer

object ResolveSubqueryColumnAliases extends Rule[LogicalPlan]

Replaces unresolved column aliases for a subquery with projections.

Definition Classes: Analyzer

object ResolveUnpivot extends Rule[LogicalPlan]

Definition Classes: Analyzer

object ResolveUpCast extends Rule[LogicalPlan]

Replace the UpCast expression by Cast, and throw exceptions if the cast may truncate.

Definition Classes: Analyzer

object ResolveWindowFrame extends Rule[LogicalPlan]

Check and add proper window frames for all window functions.

Definition Classes: Analyzer

object ResolveWindowOrder extends Rule[LogicalPlan]

Check and add order to AggregateWindowFunctions.

Definition Classes: Analyzer

object WindowsSubstitution extends Rule[LogicalPlan]

Substitute child plan with WindowSpecDefinitions.

Definition Classes: Analyzer

object Once extends Strategy with Product with Serializable

A strategy that is run once and idempotent.

Definition Classes: RuleExecutor

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

val DATA_TYPE_MISMATCH_ERROR: TreeNodeTag[Boolean]

Definition Classes: CheckAnalysis

val INVALID_FORMAT_ERROR: TreeNodeTag[Boolean]

Definition Classes: CheckAnalysis

final def asInstanceOf[T0]: T0

Definition Classes: Any

def batches: Seq[Batch]

Defines a sequence of rule batches, to be overridden by the implementation.

Definition Classes: Analyzer → RuleExecutor

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)

Attributes: protected
Definition Classes: PredicateHelper

def canEvaluate(expr: Expression, plan: LogicalPlan): Boolean

Returns true if expr can be evaluated using only the output of plan.

Returns true if expr can be evaluated using only the output of plan. 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).

- canEvaluate(EqualTo(a,b), R) returns true - canEvaluate(EqualTo(a,c), R) returns false - canEvaluate(Literal(1), R) returns true as literals CAN be evaluated on any plan

Attributes: protected
Definition Classes: PredicateHelper

def canEvaluateWithinJoin(expr: Expression): Boolean

Returns true iff expr could be evaluated as a condition within join.

Attributes: protected
Definition Classes: PredicateHelper

val catalogManager: CatalogManager

Definition Classes: Analyzer → LookupCatalog

def checkAnalysis(plan: LogicalPlan): Unit

Definition Classes: CheckAnalysis

def checkAnalysis0(plan: LogicalPlan): Unit

Definition Classes: CheckAnalysis

def checkSubqueryExpression(plan: LogicalPlan, expr: SubqueryExpression): Unit

Validates subquery expressions in the plan.

Validates subquery expressions in the plan. Upon failure, returns an user facing error.

Definition Classes: CheckAnalysis

def clone(): AnyRef

Attributes: protected[lang]
Definition Classes: AnyRef
Annotations: @throws( ... ) @native()

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

def containsMultipleGenerators(exprs: Seq[Expression]): Boolean

Attributes: protected
Definition Classes: CheckAnalysis

def currentCatalog: CatalogPlugin

Returns the current catalog set.

Definition Classes: LookupCatalog

final def eq(arg0: AnyRef): Boolean

Definition Classes: AnyRef

def equals(arg0: Any): Boolean

Definition Classes: AnyRef → Any

val excludedOnceBatches: Set[String]

Once batches that are excluded in the idempotence checker

Attributes: protected
Definition Classes: RuleExecutor

def execute(plan: LogicalPlan): LogicalPlan

Executes the batches of rules defined by the subclass.

Executes the batches of rules defined by the subclass. The batches are executed serially using the defined execution strategy. Within each batch, rules are also executed serially.

Definition Classes: Analyzer → RuleExecutor

def executeAndCheck(plan: LogicalPlan, tracker: QueryPlanningTracker): LogicalPlan

Definition Classes: Analyzer

def executeAndTrack(plan: LogicalPlan, tracker: QueryPlanningTracker): LogicalPlan

Executes the batches of rules defined by the subclass, and also tracks timing info for each rule using the provided tracker.

Definition Classes: RuleExecutor
See also: execute

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.

Definition Classes: CheckAnalysis

val extendedResolutionRules: Seq[Rule[LogicalPlan]]

Override to provide additional rules for the "Resolution" batch.

Definition Classes: Analyzer

def extractPredicatesWithinOutputSet(condition: Expression, outputSet: AttributeSet): Option[Expression]

Returns a filter that its reference is a subset of outputSet and it contains the maximum constraints from condition.

Returns a filter that its reference is a subset of outputSet and it contains the maximum constraints from condition. This is used for predicate pushdown. When there is no such filter, None is returned.

Attributes: protected
Definition Classes: PredicateHelper

def failAnalysis(errorClass: String, messageParameters: Map[String, String]): Nothing

Fails the analysis at the point where a specific tree node was parsed using a provided error class and message parameters.

Definition Classes: CheckAnalysis

def finalize(): Unit

Attributes: protected[lang]
Definition Classes: AnyRef
Annotations: @throws( classOf[java.lang.Throwable] )

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

Definition Classes: PredicateHelper

def fixedPoint: FixedPoint

If the plan cannot be resolved within maxIterations, analyzer will throw exception to inform user to increase the value of SQLConf.ANALYZER_MAX_ITERATIONS.

Attributes: protected
Definition Classes: Analyzer

def getAliasMap(exprs: Seq[NamedExpression]): AttributeMap[Alias]

Attributes: protected
Definition Classes: AliasHelper

def getAliasMap(plan: Aggregate): AttributeMap[Alias]

Attributes: protected
Definition Classes: AliasHelper

def getAliasMap(plan: Project): AttributeMap[Alias]

Attributes: protected
Definition Classes: AliasHelper

final def getClass(): Class[_]

Definition Classes: AnyRef → Any
Annotations: @native()

def getQueryContext(sqlContext: SQLQueryContext): Array[QueryContext]

Definition Classes: DataTypeErrorsBase

def getSummary(sqlContext: SQLQueryContext): String

Definition Classes: DataTypeErrorsBase

def hasMapType(dt: DataType): Boolean

Attributes: protected
Definition Classes: CheckAnalysis

def hashCode(): Int

Definition Classes: AnyRef → Any
Annotations: @native()

def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean

Attributes: protected
Definition Classes: Logging

def initializeLogIfNecessary(isInterpreter: Boolean): Unit

Attributes: protected
Definition Classes: Logging

final def isInstanceOf[T0]: Boolean

Definition Classes: Any

def isLikelySelective(e: Expression): Boolean

Returns whether an expression is likely to be selective

Definition Classes: PredicateHelper

def isNullIntolerant(expr: Expression): Boolean

Attributes: protected
Definition Classes: PredicateHelper

def isTraceEnabled(): Boolean

Attributes: protected
Definition Classes: Logging

def isView(nameParts: Seq[String]): Boolean

Definition Classes: Analyzer → CheckAnalysis

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 mapColumnInSetOperation(plan: LogicalPlan): Option[Attribute]

Attributes: protected
Definition Classes: CheckAnalysis

final def ne(arg0: AnyRef): Boolean

Definition Classes: AnyRef

final def notify(): Unit

Definition Classes: AnyRef
Annotations: @native()

final def notifyAll(): Unit

Definition Classes: AnyRef
Annotations: @native()

def outputWithNullability(output: Seq[Attribute], nonNullAttrExprIds: Seq[ExprId]): Seq[Attribute]

Attributes: protected
Definition Classes: PredicateHelper

val postHocResolutionRules: Seq[Rule[LogicalPlan]]

Override to provide rules to do post-hoc resolution.

Override to provide rules to do post-hoc resolution. Note that these rules will be executed in an individual batch. This batch is to run right after the normal resolution batch and execute its rules in one pass.

Definition Classes: Analyzer

def quoteByDefault(elem: String): String

Attributes: protected
Definition Classes: DataTypeErrorsBase

def replaceAlias(expr: Expression, aliasMap: AttributeMap[Alias]): 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.

Attributes: protected
Definition Classes: AliasHelper

def resolveColWithAgg(e: Expression, plan: LogicalPlan): Expression

Attributes: protected
Definition Classes: ColumnResolutionHelper

def resolveExprInAssignment(expr: Expression, hostPlan: LogicalPlan): Expression

Definition Classes: ColumnResolutionHelper

def resolveExpressionByPlanChildren(e: Expression, q: LogicalPlan, allowOuter: Boolean = false): Expression

Resolves UnresolvedAttribute, GetColumnByOrdinal and extract value expressions(s) by the input plan's children output attributes.

e: The expression need to be resolved.
q: The LogicalPlan whose children are used to resolve expression's attribute.
returns: resolved Expression.

Definition Classes: ColumnResolutionHelper

def resolveExpressionByPlanOutput(expr: Expression, plan: LogicalPlan, throws: Boolean = false, allowOuter: Boolean = false): Expression

Resolves UnresolvedAttribute, GetColumnByOrdinal and extract value expressions(s) by the input plan's output attributes.

Resolves UnresolvedAttribute, GetColumnByOrdinal and extract value expressions(s) by the input plan's output attributes. In order to resolve the nested fields correctly, this function makes use of throws parameter to control when to raise an AnalysisException.

Example : SELECT * FROM t ORDER BY a.b

In the above example, after a is resolved to a struct-type column, we may fail to resolve b if there is no such nested field named "b". We should not fail and wait for other rules to resolve it if possible.

Definition Classes: ColumnResolutionHelper

def resolveExprsAndAddMissingAttrs(exprs: Seq[Expression], plan: LogicalPlan): (Seq[Expression], LogicalPlan)

This method tries to resolve expressions and find missing attributes recursively.

This method tries to resolve expressions and find missing attributes recursively. Specifically, when the expressions used in Sort or Filter contain unresolved attributes or resolved attributes which are missing from child output. This method tries to find the missing attributes and add them into the projection.

Attributes: protected
Definition Classes: ColumnResolutionHelper

def resolveLateralColumnAlias(selectList: Seq[Expression]): Seq[Expression]

Attributes: protected
Definition Classes: ColumnResolutionHelper

def resolveOuterRef(e: Expression): Expression

Attributes: protected
Definition Classes: ColumnResolutionHelper

def resolver: Resolver

Definition Classes: Analyzer

def splitConjunctivePredicates(condition: Expression): Seq[Expression]

Attributes: protected
Definition Classes: PredicateHelper

def splitDisjunctivePredicates(condition: Expression): Seq[Expression]

Attributes: protected
Definition Classes: PredicateHelper

final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes: AnyRef

def toDSOption(option: String): String

Definition Classes: QueryErrorsBase

def toSQLConf(conf: String): String

Definition Classes: DataTypeErrorsBase

def toSQLConfVal(conf: String): String

Definition Classes: QueryErrorsBase

def toSQLExpr(e: Expression): String

Definition Classes: QueryErrorsBase

def toSQLId(parts: Seq[String]): String

Definition Classes: DataTypeErrorsBase

def toSQLId(parts: String): String

Definition Classes: DataTypeErrorsBase

def toSQLSchema(schema: String): String

Definition Classes: QueryErrorsBase

def toSQLStmt(text: String): String

Definition Classes: DataTypeErrorsBase

def toSQLType(t: AbstractDataType): String

Definition Classes: DataTypeErrorsBase

def toSQLType(text: String): String

Definition Classes: DataTypeErrorsBase

def toSQLValue(v: Any, t: DataType): String

Definition Classes: QueryErrorsBase

def toSQLValue(value: Double): String

Definition Classes: DataTypeErrorsBase

def toSQLValue(value: Float): String

Definition Classes: DataTypeErrorsBase

def toSQLValue(value: Long): String

Definition Classes: DataTypeErrorsBase

def toSQLValue(value: Int): String

Definition Classes: DataTypeErrorsBase

def toSQLValue(value: Short): String

Definition Classes: DataTypeErrorsBase

def toSQLValue(value: UTF8String): String

Definition Classes: DataTypeErrorsBase

def toSQLValue(value: String): String

Definition Classes: DataTypeErrorsBase

def toString(): String

Definition Classes: AnyRef → Any

def trimAliases(e: Expression): Expression

Attributes: protected
Definition Classes: AliasHelper

def trimNonTopLevelAliases[T <: Expression](e: T): T

Attributes: protected
Definition Classes: AliasHelper

def validatePlanChanges(previousPlan: LogicalPlan, currentPlan: LogicalPlan): Option[String]

Defines a validate function that validates the plan changes after the execution of each rule, to make sure these rules make valid changes to the plan.

Defines a validate function that validates the plan changes after the execution of each rule, to make sure these rules make valid changes to the plan. For example, we can check whether a plan is still resolved after each rule in Optimizer, so that we can catch rules that turn the plan into unresolved.

Attributes: protected
Definition Classes: Analyzer → RuleExecutor

final def wait(): Unit

Definition Classes: AnyRef
Annotations: @throws( ... )

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

Definition Classes: AnyRef
Annotations: @throws( ... )

final def wait(arg0: Long): Unit

Definition Classes: AnyRef
Annotations: @throws( ... ) @native()

object AsTableIdentifier

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.

Definition Classes: LookupCatalog

object SessionCatalogAndIdentifier

Extract session catalog and identifier from a multi-part identifier.

Definition Classes: LookupCatalog

Packages

GeneratedColumnAnalyzer

object GeneratedColumnAnalyzer extends Analyzer

Type Members

Value Members

Inherited from Analyzer

Inherited from ColumnResolutionHelper

Inherited from SQLConfHelper

Inherited from CheckAnalysis

Inherited from QueryErrorsBase

Inherited from DataTypeErrorsBase

Inherited from LookupCatalog

Inherited from PredicateHelper

Inherited from AliasHelper

Inherited from RuleExecutor[LogicalPlan]

Inherited from Logging

Inherited from AnyRef

Inherited from Any

Ungrouped