Class SqlInsert
- java.lang.Object
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- org.apache.calcite.sql.SqlNode
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- org.apache.calcite.sql.SqlCall
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- org.apache.calcite.sql.SqlInsert
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- All Implemented Interfaces:
java.lang.Cloneable
public class SqlInsert extends SqlCall
ASqlInsert
is a node of a parse tree which represents an INSERT statement.
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Field Summary
Fields Modifier and Type Field Description (package private) SqlNodeList
columnList
(package private) SqlNodeList
keywords
static SqlSpecialOperator
OPERATOR
(package private) SqlNode
source
(package private) SqlNode
targetTable
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Fields inherited from class org.apache.calcite.sql.SqlNode
EMPTY_ARRAY, pos
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Constructor Summary
Constructors Constructor Description SqlInsert(SqlParserPos pos, SqlNodeList keywords, SqlNode targetTable, SqlNode source, SqlNodeList columnList)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description SqlKind
getKind()
Returns the type of node this is, orSqlKind.OTHER
if it's nothing special.SqlNode
getModifierNode(SqlInsertKeyword modifier)
java.util.List<SqlNode>
getOperandList()
SqlOperator
getOperator()
SqlNode
getSource()
SqlNodeList
getTargetColumnList()
SqlNode
getTargetTable()
boolean
isUpsert()
Returns whether this is an UPSERT statement.void
setOperand(int i, SqlNode operand)
Changes the value of an operand.void
setSource(SqlSelect source)
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
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Methods inherited from class org.apache.calcite.sql.SqlNode
clone, clone, cloneArray, equalDeep, equalDeep, equalsDeep, getParserPosition, isA, toSqlString, toSqlString, toString, validateExpr
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Field Detail
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OPERATOR
public static final SqlSpecialOperator OPERATOR
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keywords
SqlNodeList keywords
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targetTable
SqlNode targetTable
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source
SqlNode source
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columnList
SqlNodeList columnList
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Constructor Detail
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SqlInsert
public SqlInsert(SqlParserPos pos, SqlNodeList keywords, SqlNode targetTable, SqlNode source, SqlNodeList columnList)
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Method Detail
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getKind
public SqlKind getKind()
Description copied from class:SqlNode
Returns the type of node this is, orSqlKind.OTHER
if it's nothing special.- Overrides:
getKind
in classSqlCall
- Returns:
- a
SqlKind
value, never null - See Also:
SqlNode.isA(java.util.Set<org.apache.calcite.sql.SqlKind>)
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getOperator
public SqlOperator getOperator()
- Specified by:
getOperator
in classSqlCall
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getOperandList
public java.util.List<SqlNode> getOperandList()
- Specified by:
getOperandList
in classSqlCall
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isUpsert
public final boolean isUpsert()
Returns whether this is an UPSERT statement.In SQL, this is represented using the
UPSERT
keyword rather thanINSERT
; in the abstract syntax tree, an UPSERT is indicated by the presence of aSqlInsertKeyword.UPSERT
keyword.
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setOperand
public void setOperand(int i, SqlNode operand)
Description copied from class:SqlCall
Changes the value of an operand. Allows some rewrite bySqlValidator
; use sparingly.- Overrides:
setOperand
in classSqlCall
- Parameters:
i
- Operand indexoperand
- Operand value
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getTargetTable
public SqlNode getTargetTable()
- Returns:
- the identifier for the target table of the insertion
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getSource
public SqlNode getSource()
- Returns:
- the source expression for the data to be inserted
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setSource
public void setSource(SqlSelect source)
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getTargetColumnList
public SqlNodeList getTargetColumnList()
- Returns:
- the list of target column names, or null for all columns in the target table
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getModifierNode
public final SqlNode getModifierNode(SqlInsertKeyword modifier)
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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
andrightPrec
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)
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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 exampleSqlSelect
andSqlUpdate
).
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