Packages

c

org.apache.spark.sql.catalyst.analysis

ResolveDataFrameDropColumns

class ResolveDataFrameDropColumns extends Rule[LogicalPlan] with ColumnResolutionHelper

A rule that rewrites DataFrameDropColumns to Project. Note that DataFrameDropColumns allows and ignores non-existing columns.

Linear Supertypes
ColumnResolutionHelper, DataTypeErrorsBase, Rule[LogicalPlan], Logging, SQLConfHelper, AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. ResolveDataFrameDropColumns
  2. ColumnResolutionHelper
  3. DataTypeErrorsBase
  4. Rule
  5. Logging
  6. SQLConfHelper
  7. AnyRef
  8. Any
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Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new ResolveDataFrameDropColumns(catalogManager: CatalogManager)

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. def apply(plan: LogicalPlan): LogicalPlan
    Definition Classes
    ResolveDataFrameDropColumns → Rule
  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. val catalogManager: CatalogManager
  7. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  8. 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
  9. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  10. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  11. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  12. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  13. def getQueryContext(sqlContext: SQLQueryContext): Array[QueryContext]
    Definition Classes
    DataTypeErrorsBase
  14. def getSummary(sqlContext: SQLQueryContext): String
    Definition Classes
    DataTypeErrorsBase
  15. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  16. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  17. def initializeLogIfNecessary(isInterpreter: Boolean): Unit
    Attributes
    protected
    Definition Classes
    Logging
  18. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  19. def isTraceEnabled(): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  20. def log: Logger
    Attributes
    protected
    Definition Classes
    Logging
  21. def logDebug(msg: => String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  22. def logDebug(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  23. def logError(msg: => String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  24. def logError(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  25. def logInfo(msg: => String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  26. def logInfo(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  27. def logName: String
    Attributes
    protected
    Definition Classes
    Logging
  28. def logTrace(msg: => String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  29. def logTrace(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  30. def logWarning(msg: => String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  31. def logWarning(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  32. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  33. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  34. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  35. def quoteByDefault(elem: String): String
    Attributes
    protected
    Definition Classes
    DataTypeErrorsBase
  36. def resolveColWithAgg(e: Expression, plan: LogicalPlan): Expression
    Attributes
    protected
    Definition Classes
    ColumnResolutionHelper
  37. def resolveExprInAssignment(expr: Expression, hostPlan: LogicalPlan): Expression
    Definition Classes
    ColumnResolutionHelper
  38. 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.

    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
  39. 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
  40. 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
  41. def resolveLateralColumnAlias(selectList: Seq[Expression]): Seq[Expression]
    Attributes
    protected
    Definition Classes
    ColumnResolutionHelper
  42. def resolveOuterRef(e: Expression): Expression
    Attributes
    protected
    Definition Classes
    ColumnResolutionHelper
  43. lazy val ruleId: RuleId
    Attributes
    protected
    Definition Classes
    Rule
  44. val ruleName: String

    Name for this rule, automatically inferred based on class name.

    Name for this rule, automatically inferred based on class name.

    Definition Classes
    Rule
  45. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  46. def toSQLConf(conf: String): String
    Definition Classes
    DataTypeErrorsBase
  47. def toSQLId(parts: Seq[String]): String
    Definition Classes
    DataTypeErrorsBase
  48. def toSQLId(parts: String): String
    Definition Classes
    DataTypeErrorsBase
  49. def toSQLStmt(text: String): String
    Definition Classes
    DataTypeErrorsBase
  50. def toSQLType(t: AbstractDataType): String
    Definition Classes
    DataTypeErrorsBase
  51. def toSQLType(text: String): String
    Definition Classes
    DataTypeErrorsBase
  52. def toSQLValue(value: Double): String
    Definition Classes
    DataTypeErrorsBase
  53. def toSQLValue(value: Float): String
    Definition Classes
    DataTypeErrorsBase
  54. def toSQLValue(value: Long): String
    Definition Classes
    DataTypeErrorsBase
  55. def toSQLValue(value: Int): String
    Definition Classes
    DataTypeErrorsBase
  56. def toSQLValue(value: Short): String
    Definition Classes
    DataTypeErrorsBase
  57. def toSQLValue(value: UTF8String): String
    Definition Classes
    DataTypeErrorsBase
  58. def toSQLValue(value: String): String
    Definition Classes
    DataTypeErrorsBase
  59. def toString(): String
    Definition Classes
    AnyRef → Any
  60. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  61. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  62. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

Inherited from ColumnResolutionHelper

Inherited from DataTypeErrorsBase

Inherited from Rule[LogicalPlan]

Inherited from Logging

Inherited from SQLConfHelper

Inherited from AnyRef

Inherited from Any

Ungrouped