org.apache.spark.sql.execution.command

DescribeDatabase

case class DescribeDatabase(databaseName: String, extended: Boolean) extends LogicalPlan 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, LogicalPlan, Logging, QueryPlan[LogicalPlan], TreeNode[LogicalPlan], Product, Equals, AnyRef, Any
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Inherited
  1. DescribeDatabase
  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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Instance Constructors

  1. new DescribeDatabase(databaseName: String, extended: 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: Seq[Attribute]

    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. def children: Seq[LogicalPlan]

    Definition Classes
    RunnableCommand → TreeNode

  14. def childrenResolved: Boolean

    Definition Classes
    LogicalPlan

  15. lazy val cleanArgs: Seq[Any]

    Attributes
    protected
    Definition Classes
    QueryPlan

  16. def clone(): AnyRef

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

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

    Definition Classes
    TreeNode

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

    Definition Classes
    TreeNode

  19. lazy val constraints: ExpressionSet

    Definition Classes
    QueryPlan

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

    Definition Classes
    TreeNode

  21. val databaseName: String

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

    Definition Classes
    AnyRef

  23. final def expressions: Seq[Expression]

    Definition Classes
    QueryPlan

  24. val extended: Boolean

  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): 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. def initializeLogIfNecessary(isInterpreter: Boolean): Unit

    Attributes
    protected
    Definition Classes
    Logging

  37. def innerChildren: Seq[LogicalPlan]

    Definition Classes
    QueryPlan → TreeNode

  38. def inputSet: AttributeSet

    Definition Classes
    QueryPlan

  39. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  40. def isStreaming: Boolean

    Definition Classes
    LogicalPlan

  41. def isTraceEnabled(): Boolean

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    TreeNode

  43. def log: Logger

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

  50. def logName: String

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Definition Classes
    TreeNode

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

    Definition Classes
    TreeNode

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

    Definition Classes
    TreeNode

  58. def maxRows: Option[Long]

    Definition Classes
    LogicalPlan

  59. def missingInput: AttributeSet

    Definition Classes
    QueryPlan

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

    Definition Classes
    AnyRef

  61. def nodeName: String

    Definition Classes
    TreeNode

  62. final def notify(): Unit

    Definition Classes
    AnyRef

  63. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  64. def numberedTreeString: String

    Definition Classes
    TreeNode

  65. val origin: Origin

    Definition Classes
    TreeNode

  66. def otherCopyArgs: Seq[AnyRef]

    Attributes
    protected
    Definition Classes
    TreeNode

  67. val output: Seq[Attribute]

    Definition Classes
    DescribeDatabase → RunnableCommand → QueryPlan

  68. def outputSet: AttributeSet

    Definition Classes
    QueryPlan

  69. def prettyJson: String

    Definition Classes
    TreeNode

  70. def printSchema(): Unit

    Definition Classes
    QueryPlan

  71. def producedAttributes: AttributeSet

    Definition Classes
    QueryPlan

  72. def references: AttributeSet

    Definition Classes
    QueryPlan

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

    Attributes
    protected
    Definition Classes
    LogicalPlan

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

    Definition Classes
    LogicalPlan

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

    Definition Classes
    LogicalPlan

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

    Definition Classes
    LogicalPlan

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

    Definition Classes
    LogicalPlan

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

    Definition Classes
    LogicalPlan

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

    Definition Classes
    LogicalPlan

  80. lazy val resolved: Boolean

    Definition Classes
    LogicalPlan

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

    Definition Classes
    DescribeDatabase → RunnableCommand

  82. def sameResult(plan: LogicalPlan): Boolean

    Definition Classes
    QueryPlan

  83. lazy val schema: StructType

    Definition Classes
    QueryPlan

  84. def schemaString: String

    Definition Classes
    QueryPlan

  85. def simpleString: String

    Definition Classes
    QueryPlan → TreeNode

  86. def statePrefix: String

    Attributes
    protected
    Definition Classes
    LogicalPlan → QueryPlan

  87. def statistics: Statistics

    Definition Classes
    LogicalPlan

  88. def stringArgs: Iterator[Any]

    Attributes
    protected
    Definition Classes
    TreeNode

  89. def subqueries: Seq[LogicalPlan]

    Definition Classes
    QueryPlan

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

    Definition Classes
    AnyRef

  91. def toJSON: String

    Definition Classes
    TreeNode

  92. def toString(): String

    Definition Classes
    TreeNode → AnyRef → Any

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

    Definition Classes
    TreeNode

  94. def transformAllExpressions(rule: PartialFunction[Expression, Expression]): DescribeDatabase.this.type

    Definition Classes
    QueryPlan

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

    Attributes
    protected
    Definition Classes
    TreeNode

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

    Definition Classes
    TreeNode

  97. def transformExpressions(rule: PartialFunction[Expression, Expression]): DescribeDatabase.this.type

    Definition Classes
    QueryPlan

  98. def transformExpressionsDown(rule: PartialFunction[Expression, Expression]): DescribeDatabase.this.type

    Definition Classes
    QueryPlan

  99. def transformExpressionsUp(rule: PartialFunction[Expression, Expression]): DescribeDatabase.this.type

    Definition Classes
    QueryPlan

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

    Definition Classes
    TreeNode

  101. def treeChildren: Seq[LogicalPlan]

    Attributes
    protected
    Definition Classes
    TreeNode

  102. def treeString: String

    Definition Classes
    TreeNode

  103. def validConstraints: Set[Expression]

    Attributes
    protected
    Definition Classes
    QueryPlan

  104. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  107. 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