com.cloudera.impala.analysis.ShowTablesStmt Class Reference

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

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

Public Member Functions
	ShowTablesStmt ()
	ShowTablesStmt (String pattern)
	ShowTablesStmt (String database, String pattern)
String	getPattern ()
String	getDb ()
String	toSql ()
void	analyze (Analyzer analyzer) throws AnalysisException
TShowTablesParams	toThrift ()
void	setIsExplain ()
boolean	isExplain ()

Protected Attributes
boolean	isExplain_ = false

Private Attributes
final String	pattern_
final String	parsedDb_
String	postAnalysisDb_

Detailed Description

Representation of a SHOW TABLES [pattern] statement. Acceptable syntax:

SHOW TABLES SHOW TABLES "pattern" SHOW TABLES LIKE "pattern" SHOW TABLES IN database SHOW TABLES IN database "pattern" SHOW TABLES IN database LIKE "pattern"

In Hive, the 'LIKE' is optional. Also SHOW TABLES unquotedpattern is accepted by the parser but returns no results. We don't support that syntax.

Definition at line 36 of file ShowTablesStmt.java.

Constructor & Destructor Documentation

com.cloudera.impala.analysis.ShowTablesStmt.ShowTablesStmt ( )

inline

Default constructor, which creates a show statement with the default database and no pattern (which returns all tables in the default database).

Definition at line 50 of file ShowTablesStmt.java.

com.cloudera.impala.analysis.ShowTablesStmt.ShowTablesStmt ( String  pattern )

inline

Constructs a show statement against the default database using the supplied pattern.

Definition at line 58 of file ShowTablesStmt.java.

com.cloudera.impala.analysis.ShowTablesStmt.ShowTablesStmt ( String  database, String  pattern  )

inline

General purpose constructor which builds a show statement that matches table names against a given pattern in the supplied database.

If pattern is null, all tables in the supplied database match. If database is null, the default database is searched.

Definition at line 69 of file ShowTablesStmt.java.

Member Function Documentation

void com.cloudera.impala.analysis.ShowTablesStmt.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 104 of file ShowTablesStmt.java.

References com.cloudera.impala.authorization.Privilege.ANY, com.cloudera.impala.analysis.Analyzer.DB_DOES_NOT_EXIST_ERROR_MSG, com.cloudera.impala.analysis.ShowTablesStmt.parsedDb_, and com.cloudera.impala.analysis.ShowTablesStmt.postAnalysisDb_.

String com.cloudera.impala.analysis.ShowTablesStmt.getDb ( )

inline

Can only be called after analysis, returns the name of the database that this show will search against.

Definition at line 81 of file ShowTablesStmt.java.

References com.cloudera.impala.analysis.ShowTablesStmt.postAnalysisDb_.

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

String com.cloudera.impala.analysis.ShowTablesStmt.getPattern ( )

inline

Definition at line 75 of file ShowTablesStmt.java.

References com.cloudera.impala.analysis.ShowTablesStmt.pattern_.

Referenced by com.cloudera.impala.analysis.ShowTablesStmt.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.ShowTablesStmt.toSql ( )

inline

Returns

SQL syntax corresponding to this node.

Implements com.cloudera.impala.analysis.ParseNode.

Definition at line 87 of file ShowTablesStmt.java.

References com.cloudera.impala.analysis.ShowTablesStmt.parsedDb_, and com.cloudera.impala.analysis.ShowTablesStmt.pattern_.

TShowTablesParams com.cloudera.impala.analysis.ShowTablesStmt.toThrift ( )

inline

Definition at line 111 of file ShowTablesStmt.java.

References com.cloudera.impala.analysis.ShowTablesStmt.getDb(), and com.cloudera.impala.analysis.ShowTablesStmt.getPattern().

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 String com.cloudera.impala.analysis.ShowTablesStmt.parsedDb_

private

Definition at line 41 of file ShowTablesStmt.java.

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

final String com.cloudera.impala.analysis.ShowTablesStmt.pattern_

private

Definition at line 38 of file ShowTablesStmt.java.

Referenced by com.cloudera.impala.analysis.ShowTablesStmt.getPattern(), and com.cloudera.impala.analysis.ShowTablesStmt.toSql().

String com.cloudera.impala.analysis.ShowTablesStmt.postAnalysisDb_

private

Definition at line 44 of file ShowTablesStmt.java.

Referenced by com.cloudera.impala.analysis.ShowTablesStmt.analyze(), and com.cloudera.impala.analysis.ShowTablesStmt.getDb().

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

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