com.cloudera.impala.analysis.DescribeStmt Class Reference

Inheritance diagram for com.cloudera.impala.analysis.DescribeStmt:

Collaboration diagram for com.cloudera.impala.analysis.DescribeStmt:

Public Member Functions
	DescribeStmt (TableName tableName, TDescribeTableOutputStyle outputStyle)
String	toSql ()
TableName	getTable ()
TDescribeTableOutputStyle	getOutputStyle ()
void	analyze (Analyzer analyzer) throws AnalysisException
TDescribeTableParams	toThrift ()
void	setIsExplain ()
boolean	isExplain ()

Protected Attributes
boolean	isExplain_ = false

Private Attributes
final TDescribeTableOutputStyle	outputStyle_
TableName	tableName_

Detailed Description

Representation of a DESCRIBE table statement which returns metadata on a specified table: Syntax: DESCRIBE [FORMATTED]

FORMATTED is not specified, the statement only returns info on the given table's column definition (column name, data type, and comment). If FORMATTED is specified, extended metadata on the table is returned (in addition to the column definitions). This metadata includes info about the table properties, SerDe properties, StorageDescriptor properties, and more.

Definition at line 33 of file DescribeStmt.java.

Constructor & Destructor Documentation

com.cloudera.impala.analysis.DescribeStmt.DescribeStmt ( TableName  tableName, TDescribeTableOutputStyle  outputStyle  )

inline

Definition at line 37 of file DescribeStmt.java.

Member Function Documentation

void com.cloudera.impala.analysis.DescribeStmt.analyze ( Analyzer  analyzer ) throws AnalysisException

inline

Perform semantic analysis of node and all of its children. Throws exception if any errors found.

Parameters

analyzer

Exceptions

AnalysisException

Implements com.cloudera.impala.analysis.ParseNode.

Definition at line 55 of file DescribeStmt.java.

References com.cloudera.impala.analysis.TableName.isFullyQualified(), com.cloudera.impala.analysis.DescribeStmt.tableName_, and com.cloudera.impala.authorization.Privilege.VIEW_METADATA.

TDescribeTableOutputStyle com.cloudera.impala.analysis.DescribeStmt.getOutputStyle ( )

inline

Definition at line 52 of file DescribeStmt.java.

References com.cloudera.impala.analysis.DescribeStmt.outputStyle_.

TableName com.cloudera.impala.analysis.DescribeStmt.getTable ( )

inline

Definition at line 51 of file DescribeStmt.java.

References com.cloudera.impala.analysis.DescribeStmt.tableName_.

Referenced by com.cloudera.impala.analysis.DescribeStmt.toThrift().

boolean com.cloudera.impala.analysis.StatementBase.isExplain ( )

inlineinherited

Definition at line 43 of file StatementBase.java.

References com.cloudera.impala.analysis.StatementBase.isExplain_.

void com.cloudera.impala.analysis.StatementBase.setIsExplain ( )

inlineinherited

Definition at line 42 of file StatementBase.java.

References com.cloudera.impala.analysis.StatementBase.isExplain_.

String com.cloudera.impala.analysis.DescribeStmt.toSql ( )

inline

Returns

SQL syntax corresponding to this node.

Implements com.cloudera.impala.analysis.ParseNode.

Definition at line 43 of file DescribeStmt.java.

References com.cloudera.impala.analysis.DescribeStmt.outputStyle_, and com.cloudera.impala.analysis.DescribeStmt.tableName_.

TDescribeTableParams com.cloudera.impala.analysis.DescribeStmt.toThrift ( )

inline

Definition at line 62 of file DescribeStmt.java.

References com.cloudera.impala.analysis.DescribeStmt.getTable(), and com.cloudera.impala.analysis.DescribeStmt.outputStyle_.

Member Data Documentation

boolean com.cloudera.impala.analysis.StatementBase.isExplain_ = false

protectedinherited

Definition at line 24 of file StatementBase.java.

Referenced by com.cloudera.impala.analysis.StatementBase.analyze(), com.cloudera.impala.analysis.InsertStmt.analyze(), com.cloudera.impala.analysis.StatementBase.isExplain(), and com.cloudera.impala.analysis.StatementBase.setIsExplain().

final TDescribeTableOutputStyle com.cloudera.impala.analysis.DescribeStmt.outputStyle_

private

Definition at line 34 of file DescribeStmt.java.

Referenced by com.cloudera.impala.analysis.DescribeStmt.getOutputStyle(), com.cloudera.impala.analysis.DescribeStmt.toSql(), and com.cloudera.impala.analysis.DescribeStmt.toThrift().

TableName com.cloudera.impala.analysis.DescribeStmt.tableName_

private

Definition at line 35 of file DescribeStmt.java.

Referenced by com.cloudera.impala.analysis.DescribeStmt.analyze(), com.cloudera.impala.analysis.DescribeStmt.getTable(), and com.cloudera.impala.analysis.DescribeStmt.toSql().

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The documentation for this class was generated from the following file:

• fe/src/main/java/com/cloudera/impala/analysis/DescribeStmt.java