org.apache.drill.exec.planner.sql.parser

Class SqlUseSchema

java.lang.Object

org.apache.calcite.sql.SqlNode

org.apache.calcite.sql.SqlCall

org.apache.drill.exec.planner.sql.parser.DrillSqlCall

org.apache.drill.exec.planner.sql.parser.SqlUseSchema

All Implemented Interfaces:

Cloneable

public class SqlUseSchema
extends DrillSqlCall

Sql parser tree node to represent USE SCHEMA statement.

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.calcite.sql.SqlSpecialOperator	OPERATOR

Fields inherited from class org.apache.calcite.sql.SqlNode

EMPTY_ARRAY, pos

Constructor Summary

Constructors

Constructor and Description
SqlUseSchema(org.apache.calcite.sql.parser.SqlParserPos pos, org.apache.calcite.sql.SqlIdentifier schema)

Method Summary

Methods

Modifier and Type	Method and Description
List<org.apache.calcite.sql.SqlNode>	getOperandList()
org.apache.calcite.sql.SqlOperator	getOperator()
String	getSchema() Get the schema name.
AbstractSqlHandler	getSqlHandler(SqlHandlerConfig config)
void	unparse(org.apache.calcite.sql.SqlWriter writer, int leftPrec, int rightPrec)

Methods inherited from class org.apache.drill.exec.planner.sql.parser.DrillSqlCall

getSqlHandler

Methods inherited from class org.apache.calcite.sql.SqlCall

accept, clone, equalsDeep, findValidOptions, getCallSignature, getFunctionQuantifier, getMonotonicity, isCountStar, isExpanded, operand, operandCount, setOperand, validate

Methods inherited from class org.apache.calcite.sql.SqlNode

clone, cloneArray, equalDeep, equalDeep, getKind, getParserPosition, isA, toSqlString, toSqlString, toString, validateExpr

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

OPERATOR

public static final org.apache.calcite.sql.SqlSpecialOperator OPERATOR

Constructor Detail

SqlUseSchema

public SqlUseSchema(org.apache.calcite.sql.parser.SqlParserPos pos,
            org.apache.calcite.sql.SqlIdentifier schema)

Method Detail

getOperandList

public List<org.apache.calcite.sql.SqlNode> getOperandList()

Specified by:

getOperandList in class org.apache.calcite.sql.SqlCall

getOperator

public org.apache.calcite.sql.SqlOperator getOperator()

Specified by:

getOperator in class org.apache.calcite.sql.SqlCall

unparse

public void unparse(org.apache.calcite.sql.SqlWriter writer,
           int leftPrec,
           int rightPrec)

Overrides:

unparse in class org.apache.calcite.sql.SqlCall

getSqlHandler

public AbstractSqlHandler getSqlHandler(SqlHandlerConfig config)

Overrides:

getSqlHandler in class DrillSqlCall

getSchema

public String getSchema()

Get the schema name. A schema identifier can contain more than one level of schema. Ex: "dfs.home" identifier contains two levels "dfs" and "home".

Returns:

schemas combined with "."