Class

org.apache.spark.sql.execution.command

DropDatabaseCommand

Related Doc: package command

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case class DropDatabaseCommand(databaseName: String, ifExists: Boolean, cascade: Boolean) extends LogicalPlan with RunnableCommand with Product with Serializable

A command for users to remove a database from the system.

'ifExists': - true, if database_name does't exist, no action - false (default), if database_name does't exist, a warning message will be issued 'cascade': - true, the dependent objects are automatically dropped before dropping database. - false (default), it is in the Restrict mode. The database cannot be dropped if it is not empty. The inclusive tables must be dropped at first.

The syntax of using this command in SQL is:

DROP DATABASE [IF EXISTS] database_name [RESTRICT|CASCADE];
Linear Supertypes
Serializable, Serializable, RunnableCommand, Command, LogicalPlan, Logging, QueryPlan[LogicalPlan], TreeNode[LogicalPlan], Product, Equals, AnyRef, Any
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Inherited
  1. DropDatabaseCommand
  2. Serializable
  3. Serializable
  4. RunnableCommand
  5. Command
  6. LogicalPlan
  7. Logging
  8. QueryPlan
  9. TreeNode
  10. Product
  11. Equals
  12. AnyRef
  13. Any
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Visibility
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Instance Constructors

  1. new DropDatabaseCommand(databaseName: String, ifExists: Boolean, cascade: Boolean)

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Value Members

  1. final def !=(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any

  3. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  4. lazy val allAttributes: AttributeSeq

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    Definition Classes
    QueryPlan

  5. def analyzed: Boolean

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    Definition Classes
    LogicalPlan

  6. def apply(number: Int): LogicalPlan

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    Definition Classes
    TreeNode

  7. def argString: String

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    Definition Classes
    TreeNode

  8. def asCode: String

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    Definition Classes
    TreeNode

  9. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any

  10. lazy val canonicalized: LogicalPlan

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    Definition Classes
    LogicalPlan → QueryPlan

  11. val cascade: Boolean

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  12. final def children: Seq[LogicalPlan]

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    Definition Classes
    RunnableCommand → TreeNode

  13. def childrenResolved: Boolean

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    Definition Classes
    LogicalPlan

  14. lazy val cleanArgs: Seq[Any]

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    Attributes
    protected
    Definition Classes
    QueryPlan

  15. def clone(): AnyRef

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

  16. def collect[B](pf: PartialFunction[LogicalPlan, B]): Seq[B]

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    Definition Classes
    TreeNode

  17. def collectFirst[B](pf: PartialFunction[LogicalPlan, B]): Option[B]

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    Definition Classes
    TreeNode

  18. lazy val constraints: ExpressionSet

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    Definition Classes
    QueryPlan

  19. lazy val containsChild: Set[TreeNode[_]]

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    Definition Classes
    TreeNode

  20. val databaseName: String

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  21. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  22. final def expressions: Seq[Expression]

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    Definition Classes
    QueryPlan

  23. def fastEquals(other: TreeNode[_]): Boolean

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    Definition Classes
    TreeNode

  24. def finalize(): Unit

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

  25. def find(f: (LogicalPlan) ⇒ Boolean): Option[LogicalPlan]

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    Definition Classes
    TreeNode

  26. def flatMap[A](f: (LogicalPlan) ⇒ TraversableOnce[A]): Seq[A]

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    Definition Classes
    TreeNode

  27. def foreach(f: (LogicalPlan) ⇒ Unit): Unit

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    Definition Classes
    TreeNode

  28. def foreachUp(f: (LogicalPlan) ⇒ Unit): Unit

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    Definition Classes
    TreeNode

  29. def generateTreeString(depth: Int, lastChildren: Seq[Boolean], builder: StringBuilder, verbose: Boolean, prefix: String): StringBuilder

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    Definition Classes
    TreeNode

  30. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any

  31. def getNodeNumbered(number: MutableInt): LogicalPlan

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    Attributes
    protected
    Definition Classes
    TreeNode

  32. def getRelevantConstraints(constraints: Set[Expression]): Set[Expression]

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    Attributes
    protected
    Definition Classes
    QueryPlan

  33. def hashCode(): Int

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    Definition Classes
    TreeNode → AnyRef → Any

  34. val ifExists: Boolean

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  35. def initializeLogIfNecessary(isInterpreter: Boolean): Unit

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    Attributes
    protected
    Definition Classes
    Logging

  36. def innerChildren: Seq[QueryPlan[_]]

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    Attributes
    protected
    Definition Classes
    QueryPlan → TreeNode

  37. def inputSet: AttributeSet

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    Definition Classes
    QueryPlan

  38. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any

  39. def isStreaming: Boolean

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    Definition Classes
    LogicalPlan

  40. def isTraceEnabled(): Boolean

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    Attributes
    protected
    Definition Classes
    Logging

  41. def jsonFields: List[JField]

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    Attributes
    protected
    Definition Classes
    TreeNode

  42. def log: Logger

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    Attributes
    protected
    Definition Classes
    Logging

  43. def logDebug(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging

  44. def logDebug(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging

  45. def logError(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging

  46. def logError(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging

  47. def logInfo(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging

  48. def logInfo(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging

  49. def logName: String

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    Attributes
    protected
    Definition Classes
    Logging

  50. def logTrace(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging

  51. def logTrace(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging

  52. def logWarning(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging

  53. def logWarning(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging

  54. def makeCopy(newArgs: Array[AnyRef]): LogicalPlan

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    Definition Classes
    TreeNode

  55. def map[A](f: (LogicalPlan) ⇒ A): Seq[A]

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    Definition Classes
    TreeNode

  56. def mapChildren(f: (LogicalPlan) ⇒ LogicalPlan): LogicalPlan

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    Definition Classes
    TreeNode

  57. def mapProductIterator[B](f: (Any) ⇒ B)(implicit arg0: ClassTag[B]): Array[B]

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    Attributes
    protected
    Definition Classes
    TreeNode

  58. def maxRows: Option[Long]

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    Definition Classes
    LogicalPlan

  59. def missingInput: AttributeSet

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    Definition Classes
    QueryPlan

  60. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  61. def nodeName: String

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    Definition Classes
    TreeNode

  62. final def notify(): Unit

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    Definition Classes
    AnyRef

  63. final def notifyAll(): Unit

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    Definition Classes
    AnyRef

  64. def numberedTreeString: String

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    Definition Classes
    TreeNode

  65. val origin: Origin

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    Definition Classes
    TreeNode

  66. def otherCopyArgs: Seq[AnyRef]

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    Attributes
    protected
    Definition Classes
    TreeNode

  67. val output: Seq[Attribute]

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    Definition Classes
    DropDatabaseCommand → RunnableCommand → QueryPlan

  68. def outputSet: AttributeSet

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    Definition Classes
    QueryPlan

  69. def prettyJson: String

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    Definition Classes
    TreeNode

  70. def printSchema(): Unit

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    Definition Classes
    QueryPlan

  71. def producedAttributes: AttributeSet

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    Definition Classes
    QueryPlan

  72. def references: AttributeSet

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    Definition Classes
    QueryPlan

  73. def refresh(): Unit

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    Definition Classes
    LogicalPlan

  74. def resolve(nameParts: Seq[String], input: Seq[Attribute], resolver: Resolver): Option[NamedExpression]

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    Attributes
    protected
    Definition Classes
    LogicalPlan

  75. def resolve(nameParts: Seq[String], resolver: Resolver): Option[NamedExpression]

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    Definition Classes
    LogicalPlan

  76. def resolve(schema: StructType, resolver: Resolver): Seq[Attribute]

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    Definition Classes
    LogicalPlan

  77. def resolveChildren(nameParts: Seq[String], resolver: Resolver): Option[NamedExpression]

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    Definition Classes
    LogicalPlan

  78. def resolveExpressions(r: PartialFunction[Expression, Expression]): LogicalPlan

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    Definition Classes
    LogicalPlan

  79. def resolveOperators(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan

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    Definition Classes
    LogicalPlan

  80. def resolveQuoted(name: String, resolver: Resolver): Option[NamedExpression]

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    Definition Classes
    LogicalPlan

  81. lazy val resolved: Boolean

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    Definition Classes
    LogicalPlan

  82. def run(sparkSession: SparkSession): Seq[Row]

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    Definition Classes
    DropDatabaseCommand → RunnableCommand

  83. def sameResult(plan: LogicalPlan): Boolean

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    Definition Classes
    QueryPlan

  84. lazy val schema: StructType

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    Definition Classes
    QueryPlan

  85. def schemaString: String

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    Definition Classes
    QueryPlan

  86. def simpleString: String

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    Definition Classes
    QueryPlan → TreeNode

  87. def statePrefix: String

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    Attributes
    protected
    Definition Classes
    LogicalPlan → QueryPlan

  88. def statistics: Statistics

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    Definition Classes
    LogicalPlan

  89. def stringArgs: Iterator[Any]

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    Attributes
    protected
    Definition Classes
    TreeNode

  90. def subqueries: Seq[LogicalPlan]

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    Definition Classes
    QueryPlan

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

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    Definition Classes
    AnyRef

  92. def toJSON: String

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    Definition Classes
    TreeNode

  93. def toString(): String

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    Definition Classes
    TreeNode → AnyRef → Any

  94. def transform(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan

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    Definition Classes
    TreeNode

  95. def transformAllExpressions(rule: PartialFunction[Expression, Expression]): DropDatabaseCommand.this.type

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    Definition Classes
    QueryPlan

  96. def transformChildren(rule: PartialFunction[LogicalPlan, LogicalPlan], nextOperation: (LogicalPlan, PartialFunction[LogicalPlan, LogicalPlan]) ⇒ LogicalPlan): LogicalPlan

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    Attributes
    protected
    Definition Classes
    TreeNode

  97. def transformDown(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan

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    Definition Classes
    TreeNode

  98. def transformExpressions(rule: PartialFunction[Expression, Expression]): DropDatabaseCommand.this.type

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    Definition Classes
    QueryPlan

  99. def transformExpressionsDown(rule: PartialFunction[Expression, Expression]): DropDatabaseCommand.this.type

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    Definition Classes
    QueryPlan

  100. def transformExpressionsUp(rule: PartialFunction[Expression, Expression]): DropDatabaseCommand.this.type

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    Definition Classes
    QueryPlan

  101. def transformUp(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan

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    Definition Classes
    TreeNode

  102. def treeString(verbose: Boolean): String

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    Definition Classes
    TreeNode

  103. def treeString: String

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    Definition Classes
    TreeNode

  104. def validConstraints: Set[Expression]

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    Attributes
    protected
    Definition Classes
    QueryPlan

  105. def verboseString: String

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    Definition Classes
    QueryPlan → TreeNode

  106. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  108. final def wait(arg0: Long): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  109. def withNewChildren(newChildren: Seq[LogicalPlan]): LogicalPlan

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    Definition Classes
    TreeNode

Inherited from Serializable

Inherited from Serializable

Inherited from RunnableCommand

Inherited from Command

Inherited from LogicalPlan

Inherited from Logging

Inherited from QueryPlan[LogicalPlan]

Inherited from TreeNode[LogicalPlan]

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Ungrouped