Class

org.apache.spark.sql.execution.command

DescribeDatabaseCommand

Related Doc: package command

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case class DescribeDatabaseCommand(databaseName: String, extended: Boolean) extends LeafNode with RunnableCommand with Product with Serializable

A command for users to show the name of the database, its comment (if one has been set), and its root location on the filesystem. When extended is true, it also shows the database's properties If the database does not exist, an error message will be issued to indicate the database does not exist. The syntax of using this command in SQL is

DESCRIBE DATABASE [EXTENDED] db_name
Linear Supertypes
Serializable, Serializable, RunnableCommand, Command, LeafNode, LogicalPlan, Logging, QueryPlan[LogicalPlan], TreeNode[LogicalPlan], Product, Equals, AnyRef, Any
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Inherited
  1. DescribeDatabaseCommand
  2. Serializable
  3. Serializable
  4. RunnableCommand
  5. Command
  6. LeafNode
  7. LogicalPlan
  8. Logging
  9. QueryPlan
  10. TreeNode
  11. Product
  12. Equals
  13. AnyRef
  14. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new DescribeDatabaseCommand(databaseName: String, extended: 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): TreeNode[_]

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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
    QueryPlan
  11. final def children: Seq[LogicalPlan]

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    Definition Classes
    LeafNode → TreeNode
  12. def childrenResolved: Boolean

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    Definition Classes
    LogicalPlan
  13. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  14. def collect[B](pf: PartialFunction[LogicalPlan, B]): Seq[B]

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    Definition Classes
    TreeNode
  15. def collectFirst[B](pf: PartialFunction[LogicalPlan, B]): Option[B]

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    Definition Classes
    TreeNode
  16. def collectLeaves(): Seq[LogicalPlan]

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    Definition Classes
    TreeNode
  17. def computeStats(conf: SQLConf): Statistics

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    Attributes
    protected
    Definition Classes
    LogicalPlan
  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. val extended: Boolean

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

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    Definition Classes
    TreeNode
  25. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  26. def find(f: (LogicalPlan) ⇒ Boolean): Option[LogicalPlan]

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    Definition Classes
    TreeNode
  27. def flatMap[A](f: (LogicalPlan) ⇒ TraversableOnce[A]): Seq[A]

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    Definition Classes
    TreeNode
  28. def foreach(f: (LogicalPlan) ⇒ Unit): Unit

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    Definition Classes
    TreeNode
  29. def foreachUp(f: (LogicalPlan) ⇒ Unit): Unit

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    Definition Classes
    TreeNode
  30. def generateTreeString(depth: Int, lastChildren: Seq[Boolean], builder: StringBuilder, verbose: Boolean, prefix: String, addSuffix: Boolean): StringBuilder

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    Definition Classes
    TreeNode
  31. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any
  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. def initializeLogIfNecessary(isInterpreter: Boolean): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  35. def innerChildren: Seq[QueryPlan[_]]

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    Attributes
    protected
    Definition Classes
    QueryPlan → TreeNode
  36. def inputSet: AttributeSet

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    Definition Classes
    QueryPlan
  37. final def invalidateStatsCache(): Unit

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    Definition Classes
    LogicalPlan
  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 mapExpressions(f: (Expression) ⇒ Expression): DescribeDatabaseCommand.this.type

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    Definition Classes
    QueryPlan
  58. def mapProductIterator[B](f: (Any) ⇒ B)(implicit arg0: ClassTag[B]): Array[B]

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    Attributes
    protected
    Definition Classes
    TreeNode
  59. def maxRows: Option[Long]

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    Definition Classes
    LogicalPlan
  60. def missingInput: AttributeSet

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    Definition Classes
    QueryPlan
  61. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  62. def nodeName: String

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    Definition Classes
    TreeNode
  63. final def notify(): Unit

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    Definition Classes
    AnyRef
  64. final def notifyAll(): Unit

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    Definition Classes
    AnyRef
  65. def numberedTreeString: String

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    Definition Classes
    TreeNode
  66. val origin: Origin

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    Definition Classes
    TreeNode
  67. def otherCopyArgs: Seq[AnyRef]

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    Attributes
    protected
    Definition Classes
    TreeNode
  68. val output: Seq[Attribute]

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    Definition Classes
    DescribeDatabaseCommand → Command → QueryPlan
  69. def outputSet: AttributeSet

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    Definition Classes
    QueryPlan
  70. def p(number: Int): LogicalPlan

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    Definition Classes
    TreeNode
  71. def preCanonicalized: LogicalPlan

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    Attributes
    protected
    Definition Classes
    QueryPlan
  72. def prettyJson: String

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    Definition Classes
    TreeNode
  73. def printSchema(): Unit

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    Definition Classes
    QueryPlan
  74. def producedAttributes: AttributeSet

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    Definition Classes
    LeafNode → QueryPlan
  75. def references: AttributeSet

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    Definition Classes
    QueryPlan
  76. def refresh(): Unit

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    Definition Classes
    LogicalPlan
  77. def resolve(nameParts: Seq[String], input: Seq[Attribute], resolver: Resolver): Option[NamedExpression]

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    Attributes
    protected
    Definition Classes
    LogicalPlan
  78. def resolve(nameParts: Seq[String], resolver: Resolver): Option[NamedExpression]

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    Definition Classes
    LogicalPlan
  79. def resolve(schema: StructType, resolver: Resolver): Seq[Attribute]

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    Definition Classes
    LogicalPlan
  80. def resolveChildren(nameParts: Seq[String], resolver: Resolver): Option[NamedExpression]

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    Definition Classes
    LogicalPlan
  81. def resolveExpressions(r: PartialFunction[Expression, Expression]): LogicalPlan

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    Definition Classes
    LogicalPlan
  82. def resolveOperators(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan

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    Definition Classes
    LogicalPlan
  83. def resolveQuoted(name: String, resolver: Resolver): Option[NamedExpression]

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    Definition Classes
    LogicalPlan
  84. lazy val resolved: Boolean

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    Definition Classes
    LogicalPlan
  85. def run(sparkSession: SparkSession): Seq[Row]

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  86. final def sameResult(other: LogicalPlan): Boolean

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    Definition Classes
    QueryPlan
  87. lazy val schema: StructType

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    Definition Classes
    QueryPlan
  88. def schemaString: String

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    Definition Classes
    QueryPlan
  89. final def semanticHash(): Int

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    Definition Classes
    QueryPlan
  90. def simpleString: String

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    Definition Classes
    QueryPlan → TreeNode
  91. def statePrefix: String

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    Attributes
    protected
    Definition Classes
    LogicalPlan → QueryPlan
  92. final def stats(conf: SQLConf): Statistics

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    Definition Classes
    LogicalPlan
  93. def stringArgs: Iterator[Any]

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    Attributes
    protected
    Definition Classes
    TreeNode
  94. def subqueries: Seq[LogicalPlan]

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    Definition Classes
    QueryPlan
  95. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  96. def toJSON: String

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    Definition Classes
    TreeNode
  97. def toString(): String

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    Definition Classes
    TreeNode → AnyRef → Any
  98. def transform(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan

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    Definition Classes
    TreeNode
  99. def transformAllExpressions(rule: PartialFunction[Expression, Expression]): DescribeDatabaseCommand.this.type

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    Definition Classes
    QueryPlan
  100. def transformDown(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan

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    Definition Classes
    TreeNode
  101. def transformExpressions(rule: PartialFunction[Expression, Expression]): DescribeDatabaseCommand.this.type

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    Definition Classes
    QueryPlan
  102. def transformExpressionsDown(rule: PartialFunction[Expression, Expression]): DescribeDatabaseCommand.this.type

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    Definition Classes
    QueryPlan
  103. def transformExpressionsUp(rule: PartialFunction[Expression, Expression]): DescribeDatabaseCommand.this.type

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    Definition Classes
    QueryPlan
  104. def transformUp(rule: PartialFunction[LogicalPlan, LogicalPlan]): LogicalPlan

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    Definition Classes
    TreeNode
  105. def treeString(verbose: Boolean, addSuffix: Boolean): String

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    Definition Classes
    TreeNode
  106. def treeString: String

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    Definition Classes
    TreeNode
  107. def validConstraints: Set[Expression]

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    Attributes
    protected
    Definition Classes
    QueryPlan
  108. def verboseString: String

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    Definition Classes
    QueryPlan → TreeNode
  109. def verboseStringWithSuffix: String

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    Definition Classes
    LogicalPlan → TreeNode
  110. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  111. final def wait(arg0: Long, arg1: Int): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  112. final def wait(arg0: Long): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  113. 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 LeafNode

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