org.apache.calcite.sql.ddl

Class SqlCreateTable

java.lang.Object

org.apache.calcite.sql.SqlNode

org.apache.calcite.sql.SqlCall

org.apache.calcite.sql.SqlDdl

org.apache.calcite.sql.SqlCreate

org.apache.calcite.sql.ddl.SqlCreateTable

All Implemented Interfaces:

Cloneable

public class SqlCreateTable
extends SqlCreate

Parse tree for CREATE TABLE statement.

Field Summary

Fields

Modifier and Type	Field and Description
SqlNodeList	columnList
SqlIdentifier	name
SqlNode	query

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

ifNotExists

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

DDL_OPERATOR

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

EMPTY_ARRAY, pos

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SqlCreateTable(SqlParserPos pos, boolean replace, boolean ifNotExists, SqlIdentifier name, SqlNodeList columnList, SqlNode query) Creates a SqlCreateTable.

Method Summary

Modifier and Type	Method and Description
List<SqlNode>	getOperandList()
void	unparse(SqlWriter writer, int leftPrec, int rightPrec) Writes a SQL representation of this node to a writer.

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

getReplace, setReplace

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

getOperator

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

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

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

clone, clone, cloneArray, equalDeep, equalDeep, equalsDeep, getParserPosition, isA, toList, toList, toSqlString, toSqlString, toSqlString, toString, unparseWithParentheses, validateExpr

Methods inherited from class java.lang.Object

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

Field Detail

name

public final SqlIdentifier name

columnList

public final SqlNodeList columnList

query

public final SqlNode query

Constructor Detail

SqlCreateTable

protected SqlCreateTable(SqlParserPos pos,
                         boolean replace,
                         boolean ifNotExists,
                         SqlIdentifier name,
                         SqlNodeList columnList,
                         SqlNode query)

Creates a SqlCreateTable.

Method Detail

getOperandList

public List<SqlNode> getOperandList()

Specified by:

getOperandList in class SqlCall

unparse

public void unparse(SqlWriter writer,
                    int leftPrec,
                    int rightPrec)

Description copied from class: SqlNode

Writes a SQL representation of this node to a writer.

The leftPrec and rightPrec parameters give us enough context to decide whether we need to enclose the expression in parentheses. For example, we need parentheses around "2 + 3" if preceded by "5 *". This is because the precedence of the "*" operator is greater than the precedence of the "+" operator.

The algorithm handles left- and right-associative operators by giving them slightly different left- and right-precedence.

If SqlWriter.isAlwaysUseParentheses() is true, we use parentheses even when they are not required by the precedence rules.

For the details of this algorithm, see SqlCall.unparse(org.apache.calcite.sql.SqlWriter, int, int).

Overrides:

unparse in class SqlCall

Parameters:

writer - Target writer

leftPrec - The precedence of the SqlNode immediately preceding this node in a depth-first scan of the parse tree

rightPrec - The precedence of the SqlNode immediately