SqlSelect (Calcite Core 1.16.0 API)

java.lang.Object
- org.apache.calcite.sql.SqlNode
- - org.apache.calcite.sql.SqlCall
  - - org.apache.calcite.sql.SqlSelect

All Implemented Interfaces:

Cloneable
```
public class SqlSelect
extends SqlCall
```
A SqlSelect is a node of a parse tree which represents a select statement. It warrants its own node type just because we have a lot of methods to put somewhere.

Field Summary

Fields
Modifier and Type	Field and Description
`(package private) SqlNode`	`fetch`
`(package private) SqlNode`	`from`
`static int`	`FROM_OPERAND`
`(package private) SqlNodeList`	`groupBy`
`(package private) SqlNode`	`having`
`static int`	`HAVING_OPERAND`
`(package private) SqlNodeList`	`keywordList`
`(package private) SqlMatchRecognize`	`matchRecognize`
`(package private) SqlNode`	`offset`
`(package private) SqlNodeList`	`orderBy`
`(package private) SqlNodeList`	`selectList`
`(package private) SqlNode`	`where`
`static int`	`WHERE_OPERAND`
`(package private) SqlNodeList`	`windowDecls`

Fields inherited from class org.apache.calcite.sql.SqlNode
EMPTY_ARRAY, pos

Constructor Summary

Constructors
Constructor and Description
`SqlSelect(SqlParserPos pos, SqlNodeList keywordList, SqlNodeList selectList, SqlNode from, SqlNode where, SqlNodeList groupBy, SqlNode having, SqlNodeList windowDecls, SqlNodeList orderBy, SqlNode offset, SqlNode fetch)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`SqlNode`	`getFetch()`
`SqlNode`	`getFrom()`
`SqlNodeList`	`getGroup()`
`SqlNode`	`getHaving()`
`SqlKind`	`getKind()` Returns the type of node this is, or `SqlKind.OTHER` if it's nothing special.
`SqlMatchRecognize`	`getMatchRecognize()`
`SqlNode`	`getModifierNode(SqlSelectKeyword modifier)`
`SqlNode`	`getOffset()`
`List<SqlNode>`	`getOperandList()`
`SqlOperator`	`getOperator()`
`SqlNodeList`	`getOrderList()`
`SqlNodeList`	`getSelectList()`
`SqlNode`	`getWhere()`
`SqlNodeList`	`getWindowList()`
`boolean`	`hasOrderBy()`
`boolean`	`hasWhere()`
`boolean`	`isDistinct()`
`boolean`	`isKeywordPresent(SqlSelectKeyword targetKeyWord)`
`void`	`setFetch(SqlNode fetch)`
`void`	`setFrom(SqlNode from)`
`void`	`setGroupBy(SqlNodeList groupBy)`
`void`	`setHaving(SqlNode having)`
`void`	`setMatchRecognize(SqlMatchRecognize matchRecognize)`
`void`	`setOffset(SqlNode offset)`
`void`	`setOperand(int i, SqlNode operand)` Changes the value of an operand.
`void`	`setOrderBy(SqlNodeList orderBy)`
`void`	`setSelectList(SqlNodeList selectList)`
`void`	`setWhere(SqlNode whereClause)`
`void`	`unparse(SqlWriter writer, int leftPrec, int rightPrec)` Writes a SQL representation of this node to a writer.
`void`	`validate(SqlValidator validator, SqlValidatorScope scope)` Validates this call.

Methods inherited from class org.apache.calcite.sql.SqlCall
accept, clone, equalsDeep, findValidOptions, getCallSignature, getFunctionQuantifier, getMonotonicity, isCountStar, isExpanded, operand, operandCount

Methods inherited from class org.apache.calcite.sql.SqlNode
clone, clone, cloneArray, equalDeep, equalDeep, equalsDeep, getParserPosition, isA, toSqlString, toSqlString, toString, validateExpr

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - FROM_OPERAND
```
public static final int FROM_OPERAND
```
    See Also:
    
    Constant Field Values
  - WHERE_OPERAND
```
public static final int WHERE_OPERAND
```
    See Also:
    
    Constant Field Values
  - HAVING_OPERAND
```
public static final int HAVING_OPERAND
```
    See Also:
    
    Constant Field Values
  - keywordList
```
SqlNodeList keywordList
```
  - selectList
```
SqlNodeList selectList
```
  - from
```
SqlNode from
```
  - where
```
SqlNode where
```
  - groupBy
```
SqlNodeList groupBy
```
  - having
```
SqlNode having
```
  - windowDecls
```
SqlNodeList windowDecls
```
  - orderBy
```
SqlNodeList orderBy
```
  - offset
```
SqlNode offset
```
  - fetch
```
SqlNode fetch
```
  - matchRecognize
```
SqlMatchRecognize matchRecognize
```
- Constructor Detail
  - SqlSelect
```
public SqlSelect(SqlParserPos pos,
                 SqlNodeList keywordList,
                 SqlNodeList selectList,
                 SqlNode from,
                 SqlNode where,
                 SqlNodeList groupBy,
                 SqlNode having,
                 SqlNodeList windowDecls,
                 SqlNodeList orderBy,
                 SqlNode offset,
                 SqlNode fetch)
```
- Method Detail
  - getOperator
```
public SqlOperator getOperator()
```
    Specified by:
    
    getOperator in class SqlCall
  - getKind
```
public SqlKind getKind()
```
    Description copied from class: SqlNode
    
    Returns the type of node this is, or SqlKind.OTHER if it's nothing special.
    
    Overrides:
    
    getKind in class SqlCall
    
    Returns:
    
    a SqlKind value, never null
    
    See Also:
    
    SqlNode.isA(java.util.Set<org.apache.calcite.sql.SqlKind>)
  - getOperandList
```
public List<SqlNode> getOperandList()
```
    Specified by:
    
    getOperandList in class SqlCall
  - setOperand
```
public void setOperand(int i,
                       SqlNode operand)
```
    Description copied from class: SqlCall
    
    Changes the value of an operand. Allows some rewrite by SqlValidator; use sparingly.
    
    Overrides:
    
    setOperand in class SqlCall
    
    Parameters:
    
    i - Operand index
    
    operand - Operand value
  - isDistinct
```
public final boolean isDistinct()
```
  - getModifierNode
```
public final SqlNode getModifierNode(SqlSelectKeyword modifier)
```
  - getFrom
```
public final SqlNode getFrom()
```
  - setFrom
```
public void setFrom(SqlNode from)
```
  - getGroup
```
public final SqlNodeList getGroup()
```
  - setGroupBy
```
public void setGroupBy(SqlNodeList groupBy)
```
  - getHaving
```
public final SqlNode getHaving()
```
  - setHaving
```
public void setHaving(SqlNode having)
```
  - getSelectList
```
public final SqlNodeList getSelectList()
```
  - setSelectList
```
public void setSelectList(SqlNodeList selectList)
```
  - getWhere
```
public final SqlNode getWhere()
```
  - setWhere
```
public void setWhere(SqlNode whereClause)
```
  - getWindowList
```
@Nonnull
public final SqlNodeList getWindowList()
```
  - getOrderList
```
public final SqlNodeList getOrderList()
```
  - setOrderBy
```
public void setOrderBy(SqlNodeList orderBy)
```
  - getOffset
```
public final SqlNode getOffset()
```
  - setOffset
```
public void setOffset(SqlNode offset)
```
  - getFetch
```
public final SqlNode getFetch()
```
  - setFetch
```
public void setFetch(SqlNode fetch)
```
  - getMatchRecognize
```
public SqlMatchRecognize getMatchRecognize()
```
  - setMatchRecognize
```
public void setMatchRecognize(SqlMatchRecognize matchRecognize)
```
  - validate
```
public void validate(SqlValidator validator,
                     SqlValidatorScope scope)
```
    Description copied from class: SqlCall
    
    Validates this call.
    The default implementation delegates the validation to the operator's SqlOperator.validateCall(org.apache.calcite.sql.SqlCall, org.apache.calcite.sql.validate.SqlValidator, org.apache.calcite.sql.validate.SqlValidatorScope, org.apache.calcite.sql.validate.SqlValidatorScope). Derived classes may override (as do, for example SqlSelect and SqlUpdate).
    
    Overrides:
    
    validate in class SqlCall
    
    scope - Validator
  - 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
  - hasOrderBy
```
public boolean hasOrderBy()
```
  - hasWhere
```
public boolean hasWhere()
```
  - isKeywordPresent
```
public boolean isKeywordPresent(SqlSelectKeyword targetKeyWord)
```

Class SqlSelect

Field Summary

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

Constructor Summary

Method Summary

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

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

Methods inherited from class java.lang.Object

Field Detail

FROM_OPERAND

WHERE_OPERAND

HAVING_OPERAND

keywordList

selectList

from

where

groupBy

having

windowDecls

orderBy

offset

fetch

matchRecognize

Constructor Detail

SqlSelect

Method Detail

getOperator

getKind

getOperandList

setOperand

isDistinct

getModifierNode

getFrom

setFrom

getGroup

setGroupBy

getHaving

setHaving

getSelectList

setSelectList

getWhere

setWhere

getWindowList

getOrderList

setOrderBy

getOffset

setOffset

getFetch

setFetch

getMatchRecognize

setMatchRecognize

validate

unparse

hasOrderBy

hasWhere

isKeywordPresent