org.apache.spark.sql.execution.command

DropDatabaseCommand

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
Ordering
  1. Alphabetic
  2. By inheritance
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
  1. Hide All
  2. Show all
Learn more about member selection
Visibility
  1. Public
  2. All

Instance Constructors

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

Value Members

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

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  6. lazy val allAttributes: AttributeSeq

    Definition Classes
    QueryPlan

  7. def analyzed: Boolean

    Definition Classes
    LogicalPlan

  8. def apply(number: Int): LogicalPlan

    Definition Classes
    TreeNode

  9. def argString: String

    Definition Classes
    TreeNode

  10. def asCode: String

    Definition Classes
    TreeNode

  11. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  12. lazy val canonicalized: LogicalPlan

    Definition Classes
    LogicalPlan → QueryPlan

  13. val cascade: Boolean

  14. def children: Seq[LogicalPlan]

    Definition Classes
    RunnableCommand → TreeNode

  15. def childrenResolved: Boolean

    Definition Classes
    LogicalPlan

  16. lazy val cleanArgs: Seq[Any]

    Attributes
    protected
    Definition Classes
    QueryPlan

  17. def clone(): AnyRef

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

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

    Definition Classes
    TreeNode

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

    Definition Classes
    TreeNode

  20. lazy val constraints: ExpressionSet

    Definition Classes
    QueryPlan

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

    Definition Classes
    TreeNode

  22. val databaseName: String

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

    Definition Classes
    AnyRef

  24. final def expressions: Seq[Expression]

    Definition Classes
    QueryPlan

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

    Definition Classes
    TreeNode

  26. def finalize(): Unit

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

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

    Definition Classes
    TreeNode

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

    Definition Classes
    TreeNode

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

    Definition Classes
    TreeNode

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

    Definition Classes
    TreeNode

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

    Definition Classes
    TreeNode

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

    Definition Classes
    AnyRef → Any

  33. def getNodeNumbered(number: MutableInt): LogicalPlan

    Attributes
    protected
    Definition Classes
    TreeNode

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

    Attributes
    protected
    Definition Classes
    QueryPlan

  35. def hashCode(): Int

    Definition Classes
    TreeNode → AnyRef → Any

  36. val ifExists: Boolean

  37. def initializeLogIfNecessary(isInterpreter: Boolean): Unit

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    QueryPlan → TreeNode

  39. def inputSet: AttributeSet

    Definition Classes
    QueryPlan

  40. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  41. def isStreaming: Boolean

    Definition Classes
    LogicalPlan

  42. def isTraceEnabled(): Boolean

    Attributes
    protected
    Definition Classes
    Logging

  43. def jsonFields: List[(String, JValue)]

    Attributes
    protected
    Definition Classes
    TreeNode

  44. def log: Logger

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

  51. def logName: String

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Definition Classes
    TreeNode

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

    Definition Classes
    TreeNode

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

    Definition Classes
    TreeNode

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

    Attributes
    protected
    Definition Classes
    TreeNode

  60. def maxRows: Option[Long]

    Definition Classes
    LogicalPlan

  61. def missingInput: AttributeSet

    Definition Classes
    QueryPlan

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

    Definition Classes
    AnyRef

  63. def nodeName: String

    Definition Classes
    TreeNode

  64. final def notify(): Unit

    Definition Classes
    AnyRef

  65. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  66. def numberedTreeString: String

    Definition Classes
    TreeNode

  67. val origin: Origin

    Definition Classes
    TreeNode

  68. def otherCopyArgs: Seq[AnyRef]

    Attributes
    protected
    Definition Classes
    TreeNode

  69. val output: Seq[Attribute]

    Definition Classes
    DropDatabaseCommand → RunnableCommand → QueryPlan

  70. def outputSet: AttributeSet

    Definition Classes
    QueryPlan

  71. def prettyJson: String

    Definition Classes
    TreeNode

  72. def printSchema(): Unit

    Definition Classes
    QueryPlan

  73. def producedAttributes: AttributeSet

    Definition Classes
    QueryPlan

  74. def references: AttributeSet

    Definition Classes
    QueryPlan

  75. def refresh(): Unit

    Definition Classes
    LogicalPlan

  76. def resolve(nameParts: Seq[String], input: Seq[Attribute], resolver: (String, String) ⇒ Boolean): Option[NamedExpression]

    Attributes
    protected
    Definition Classes
    LogicalPlan

  77. def resolve(nameParts: Seq[String], resolver: (String, String) ⇒ Boolean): Option[NamedExpression]

    Definition Classes
    LogicalPlan

  78. def resolve(schema: StructType, resolver: (String, String) ⇒ Boolean): Seq[Attribute]

    Definition Classes
    LogicalPlan

  79. def resolveChildren(nameParts: Seq[String], resolver: (String, String) ⇒ Boolean): Option[NamedExpression]

    Definition Classes
    LogicalPlan

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

    Definition Classes
    LogicalPlan

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

    Definition Classes
    LogicalPlan

  82. def resolveQuoted(name: String, resolver: (String, String) ⇒ Boolean): Option[NamedExpression]

    Definition Classes
    LogicalPlan

  83. lazy val resolved: Boolean

    Definition Classes
    LogicalPlan

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

    Definition Classes
    DropDatabaseCommand → RunnableCommand

  85. def sameResult(plan: LogicalPlan): Boolean

    Definition Classes
    QueryPlan

  86. lazy val schema: StructType

    Definition Classes
    QueryPlan

  87. def schemaString: String

    Definition Classes
    QueryPlan

  88. def simpleString: String

    Definition Classes
    QueryPlan → TreeNode

  89. def statePrefix: String

    Attributes
    protected
    Definition Classes
    LogicalPlan → QueryPlan

  90. def statistics: Statistics

    Definition Classes
    LogicalPlan

  91. def stringArgs: Iterator[Any]

    Attributes
    protected
    Definition Classes
    TreeNode

  92. def subqueries: Seq[LogicalPlan]

    Definition Classes
    QueryPlan

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

    Definition Classes
    AnyRef

  94. def toJSON: String

    Definition Classes
    TreeNode

  95. def toString(): String

    Definition Classes
    TreeNode → AnyRef → Any

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

    Definition Classes
    TreeNode

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

    Definition Classes
    QueryPlan

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

    Attributes
    protected
    Definition Classes
    TreeNode

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

    Definition Classes
    TreeNode

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

    Definition Classes
    QueryPlan

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

    Definition Classes
    QueryPlan

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

    Definition Classes
    QueryPlan

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

    Definition Classes
    TreeNode

  104. def treeString(verbose: Boolean): String

    Definition Classes
    TreeNode

  105. def treeString: String

    Definition Classes
    TreeNode

  106. def validConstraints: Set[Expression]

    Attributes
    protected
    Definition Classes
    QueryPlan

  107. def verboseString: String

    Definition Classes
    QueryPlan → TreeNode

  108. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    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