org.apache.hadoop.hive.ql.parse.type

Class RexNodeExprFactory

java.lang.Object

org.apache.hadoop.hive.ql.parse.type.ExprFactory<org.apache.calcite.rex.RexNode>

org.apache.hadoop.hive.ql.parse.type.RexNodeExprFactory

public class RexNodeExprFactory
extends ExprFactory<org.apache.calcite.rex.RexNode>

Expression factory for Calcite RexNode.

Constructor Summary

Constructors

Constructor and Description
RexNodeExprFactory(org.apache.calcite.rex.RexBuilder rexBuilder)

Method Summary

Modifier and Type	Method and Description
protected void	addExprToExprsList(org.apache.calcite.rex.RexNode columnList, org.apache.calcite.rex.RexNode expr) Adds expression to list of expressions (list needs to be mutable).
protected TypeInfo	adjustConstantType(PrimitiveTypeInfo targetType, Object constantValue) Adjust type of constant value based on input type, e.g., adjust precision and scale of decimal value based on type information.
protected boolean	convertCASEIntoCOALESCEFuncCallExpr(FunctionInfo fi, List<org.apache.calcite.rex.RexNode> inputs) Returns true if a CASE expression can be converted into a COALESCE function call.
static org.apache.calcite.rex.RexNode	convertSubquerySomeAll(org.apache.calcite.plan.RelOptCluster cluster, ASTNode comparisonOp, SubqueryType subqueryType, org.apache.calcite.rel.RelNode subqueryRel, org.apache.calcite.rex.RexNode rexNodeLhs)
protected org.apache.calcite.rex.RexNode	createBigintConstantExpr(String value) Creates a bigint constant expression from input value.
protected org.apache.calcite.rex.RexNode	createBooleanConstantExpr(String value) Creates a boolean constant expression from input value.
protected org.apache.calcite.rex.RexNode	createColumnRefExpr(ColumnInfo colInfo, List<RowResolver> rowResolverList) Creates column expression.
protected org.apache.calcite.rex.RexNode	createColumnRefExpr(ColumnInfo colInfo, RowResolver rowResolver, int offset) Creates column expression.
protected org.apache.calcite.rex.RexNode	createConstantExpr(TypeInfo typeInfo, Object constantValue) Creates a constant expression from input value with given type.
protected org.apache.calcite.rex.RexLiteral	createDateConstantExpr(String value) Creates a date constant expression from input value.
protected org.apache.calcite.rex.RexNode	createDecimalConstantExpr(String value, boolean allowNullValueConstantExpr) Creates a decimal constant expression from input value.
protected org.apache.calcite.rex.RexNode	createDoubleConstantExpr(String value) Creates a double constant expression from input value.
protected org.apache.calcite.rex.RexNode	createDynamicParamExpr(int index) Creates a dynamic parameter expression with void type.
protected org.apache.calcite.rex.RexNode	createExprsListExpr() Creates list of expressions.
protected org.apache.calcite.rex.RexNode	createFloatConstantExpr(String value) Creates a float constant expression from input value.
protected org.apache.calcite.rex.RexNode	createFuncCallExpr(TypeInfo typeInfo, FunctionInfo functionInfo, String funcText, List<org.apache.calcite.rex.RexNode> inputs) Creates function call expression.
protected org.apache.calcite.rex.RexNode	createIntConstantExpr(String value) Creates a int constant expression from input value.
protected org.apache.calcite.rex.RexLiteral	createIntervalDayConstantExpr(String value) Creates a interval day constant expression from input value.
protected org.apache.calcite.rex.RexLiteral	createIntervalDayTimeConstantExpr(String value) Creates a interval day-time constant expression from input value.
protected org.apache.calcite.rex.RexLiteral	createIntervalHourConstantExpr(String value) Creates a interval hour constant expression from input value.
protected org.apache.calcite.rex.RexLiteral	createIntervalMinuteConstantExpr(String value) Creates a interval minute constant expression from input value.
protected org.apache.calcite.rex.RexLiteral	createIntervalMonthConstantExpr(String value) Creates a interval month constant expression from input value.
protected org.apache.calcite.rex.RexLiteral	createIntervalSecondConstantExpr(String value) Creates a interval second constant expression from input value.
protected org.apache.calcite.rex.RexLiteral	createIntervalYearConstantExpr(String value) Creates a interval year constant expression from input value.
protected org.apache.calcite.rex.RexLiteral	createIntervalYearMonthConstantExpr(String value) Creates a interval year-month constant expression from input value.
protected org.apache.calcite.rex.RexNode	createNestedColumnRefExpr(TypeInfo typeInfo, org.apache.calcite.rex.RexNode expr, String fieldName, Boolean isList) Creates a reference to a nested field.
protected org.apache.calcite.rex.RexNode	createNullConstantExpr() Creates a null constant expression with void type.
protected org.apache.calcite.rex.RexNode	createSmallintConstantExpr(String value) Creates a smallint constant expression from input value.
protected org.apache.calcite.rex.RexLiteral	createStringConstantExpr(String value) Creates a string constant expression from input value.
protected org.apache.calcite.rex.RexNode	createStructExpr(TypeInfo typeInfo, List<org.apache.calcite.rex.RexNode> operands) Creates a struct with given type.
protected org.apache.calcite.rex.RexNode	createSubqueryExpr(TypeCheckCtx ctx, ASTNode expr, SubqueryType subqueryType, Object[] inputs) Creates subquery expression.
protected org.apache.calcite.rex.RexLiteral	createTimestampConstantExpr(String value) Creates a timestamp constant expression from input value.
protected org.apache.calcite.rex.RexLiteral	createTimestampLocalTimeZoneConstantExpr(String value, ZoneId zoneId) Creates a timestamp with local time zone constant expression from input value.
protected org.apache.calcite.rex.RexNode	createTinyintConstantExpr(String value) Creates a tinyint constant expression from input value.
protected org.apache.calcite.rex.RexNode	foldExpr(org.apache.calcite.rex.RexNode expr) Folds the input expression and returns resulting expression.
protected String	getColumnName(org.apache.calcite.rex.RexNode expr, RowResolver rowResolver) Returns column name referenced by a column expression.
protected Object	getConstantValue(org.apache.calcite.rex.RexNode expr) Returns value stored in a constant expression.
protected String	getConstantValueAsString(org.apache.calcite.rex.RexNode expr) Returns value stored in a constant expression as String.
protected List<org.apache.calcite.rex.RexNode>	getExprChildren(org.apache.calcite.rex.RexNode expr) Returns the children from the input expression (if any).
protected FunctionInfo	getFunctionInfo(String funcName) Returns the FunctionInfo given the name
protected List<String>	getStructNameList(org.apache.calcite.rex.RexNode expr) Returns the list of names in the input struct expression.
protected List<TypeInfo>	getStructTypeInfoList(org.apache.calcite.rex.RexNode expr) Returns the list of types in the input struct expression.
protected TypeInfo	getTypeInfo(org.apache.calcite.rex.RexNode expr) Returns the type for the input expression.
protected Object	interpretConstantAsPrimitive(PrimitiveTypeInfo targetType, Object constantValue, PrimitiveTypeInfo sourceType, boolean isEqual) Interpret the input constant value of source type as target type.
protected boolean	isANDFuncCallExpr(org.apache.calcite.rex.RexNode expr) Returns whether the input expression is an AND function call.
protected boolean	isAndFunction(FunctionInfo fi)
protected boolean	isColumnRefExpr(Object o) Returns whether the input object is a column reference expression.
protected boolean	isCompareFunction(FunctionInfo fi)
protected boolean	isConsistentWithinQuery(FunctionInfo fi)
protected boolean	isConstantExpr(Object o) Returns whether the input expression is a constant expression.
protected boolean	isConstantStruct(org.apache.calcite.rex.RexNode expr) Returns whether the input expression is a struct of constant expressions (all of them).
protected boolean	isEqualFunction(FunctionInfo fi)
protected boolean	isExprInstance(Object o) Returns whether the input is an instance of the expression class.
protected boolean	isExprsListExpr(Object o) Returns whether the input expression is a list of expressions.
protected boolean	isFuncCallExpr(Object o) Returns whether the input expression is a function call.
protected boolean	isInFunction(FunctionInfo fi)
protected boolean	isNEGATIVEFuncCallExpr(org.apache.calcite.rex.RexNode expr) Returns whether the input expression is a NEGATIVE function call.
protected boolean	isNSCompareFunction(FunctionInfo fi)
protected boolean	isORFuncCallExpr(org.apache.calcite.rex.RexNode expr) Returns whether the input expression is an OR function call.
protected boolean	isOrFunction(FunctionInfo fi)
protected boolean	isPOSITIVEFuncCallExpr(org.apache.calcite.rex.RexNode expr) Returns whether the input expression is a POSITIVE function call.
protected boolean	isStateful(FunctionInfo fi)
protected boolean	isSTRUCTFuncCallExpr(org.apache.calcite.rex.RexNode expr) Returns whether the input expression is a STRUCT function call.
static org.apache.calcite.util.NlsString	makeHiveUnicodeString(String text)
protected org.apache.calcite.rex.RexNode	replaceFieldNamesInStruct(org.apache.calcite.rex.RexNode expr, List<String> newFieldNames)
protected org.apache.calcite.rex.RexNode	setTypeInfo(org.apache.calcite.rex.RexNode expr, TypeInfo type) Changes the type of the input expression to the input type and returns resulting expression.
protected org.apache.calcite.rex.RexNode	toExpr(ColumnInfo colInfo, RowResolver rowResolver, int offset) Generates an expression from the input column.

Methods inherited from class org.apache.hadoop.hive.ql.parse.type.ExprFactory

convertCASEIntoIFFuncCallExpr, createConstantExpr, isAllConstants

Methods inherited from class java.lang.Object

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

Constructor Detail

RexNodeExprFactory

public RexNodeExprFactory(org.apache.calcite.rex.RexBuilder rexBuilder)

Method Detail

isExprInstance

protected boolean isExprInstance(Object o)

Returns whether the input is an instance of the expression class.

Specified by:

isExprInstance in class ExprFactory<org.apache.calcite.rex.RexNode>

toExpr

protected org.apache.calcite.rex.RexNode toExpr(ColumnInfo colInfo,
                                                RowResolver rowResolver,
                                                int offset)
                                         throws CalciteSemanticException

Generates an expression from the input column. This may not necessarily be a column expression, e.g., if the column is a constant. For position based expression factories (e.g., Calcite), an offset that will be added to the input references position can be provided. For instance, this is useful to generate expressions for right side of a join output.

Specified by:

toExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

Throws:

CalciteSemanticException

createColumnRefExpr

protected org.apache.calcite.rex.RexNode createColumnRefExpr(ColumnInfo colInfo,
                                                             RowResolver rowResolver,
                                                             int offset)
                                                      throws CalciteSemanticException

Creates column expression. For position based expression factories (e.g., Calcite), an offset that will be added to the input references position can be provided. For instance, this is useful to generate expressions for right side of a join output.

Specified by:

createColumnRefExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

Throws:

CalciteSemanticException

createColumnRefExpr

protected org.apache.calcite.rex.RexNode createColumnRefExpr(ColumnInfo colInfo,
                                                             List<RowResolver> rowResolverList)
                                                      throws SemanticException

Creates column expression.

Specified by:

createColumnRefExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

Throws:

SemanticException

createNullConstantExpr

protected org.apache.calcite.rex.RexNode createNullConstantExpr()

Creates a null constant expression with void type.

Specified by:

createNullConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createDynamicParamExpr

protected org.apache.calcite.rex.RexNode createDynamicParamExpr(int index)

Creates a dynamic parameter expression with void type.

Specified by:

createDynamicParamExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createBooleanConstantExpr

protected org.apache.calcite.rex.RexNode createBooleanConstantExpr(String value)

Creates a boolean constant expression from input value.

Specified by:

createBooleanConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createBigintConstantExpr

protected org.apache.calcite.rex.RexNode createBigintConstantExpr(String value)

Creates a bigint constant expression from input value.

Specified by:

createBigintConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createIntConstantExpr

protected org.apache.calcite.rex.RexNode createIntConstantExpr(String value)

Creates a int constant expression from input value.

Specified by:

createIntConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createSmallintConstantExpr

protected org.apache.calcite.rex.RexNode createSmallintConstantExpr(String value)

Creates a smallint constant expression from input value.

Specified by:

createSmallintConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createTinyintConstantExpr

protected org.apache.calcite.rex.RexNode createTinyintConstantExpr(String value)

Creates a tinyint constant expression from input value.

Specified by:

createTinyintConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createFloatConstantExpr

protected org.apache.calcite.rex.RexNode createFloatConstantExpr(String value)

Creates a float constant expression from input value.

Specified by:

createFloatConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createDoubleConstantExpr

protected org.apache.calcite.rex.RexNode createDoubleConstantExpr(String value)
                                                           throws SemanticException

Creates a double constant expression from input value.

Specified by:

createDoubleConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

Throws:

SemanticException

createDecimalConstantExpr

protected org.apache.calcite.rex.RexNode createDecimalConstantExpr(String value,
                                                                   boolean allowNullValueConstantExpr)

Creates a decimal constant expression from input value. If the constant created from the input value is null, we return: 1) a constant expression containing null value if allowNullValueConstantExpr is true, or 2) null if allowNullValueConstantExpr is false.

Specified by:

createDecimalConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

adjustConstantType

protected TypeInfo adjustConstantType(PrimitiveTypeInfo targetType,
                                      Object constantValue)

Description copied from class: ExprFactory

Adjust type of constant value based on input type, e.g., adjust precision and scale of decimal value based on type information.

Specified by:

adjustConstantType in class ExprFactory<org.apache.calcite.rex.RexNode>

interpretConstantAsPrimitive

protected Object interpretConstantAsPrimitive(PrimitiveTypeInfo targetType,
                                              Object constantValue,
                                              PrimitiveTypeInfo sourceType,
                                              boolean isEqual)

Interpret the input constant value of source type as target type.

Specified by:

interpretConstantAsPrimitive in class ExprFactory<org.apache.calcite.rex.RexNode>

createStringConstantExpr

protected org.apache.calcite.rex.RexLiteral createStringConstantExpr(String value)

Creates a string constant expression from input value.

Specified by:

createStringConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createDateConstantExpr

protected org.apache.calcite.rex.RexLiteral createDateConstantExpr(String value)

Creates a date constant expression from input value.

Specified by:

createDateConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createTimestampConstantExpr

protected org.apache.calcite.rex.RexLiteral createTimestampConstantExpr(String value)

Creates a timestamp constant expression from input value.

Specified by:

createTimestampConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createTimestampLocalTimeZoneConstantExpr

protected org.apache.calcite.rex.RexLiteral createTimestampLocalTimeZoneConstantExpr(String value,
                                                                                     ZoneId zoneId)

Creates a timestamp with local time zone constant expression from input value. ZoneId is the local time zone.

Specified by:

createTimestampLocalTimeZoneConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createIntervalYearMonthConstantExpr

protected org.apache.calcite.rex.RexLiteral createIntervalYearMonthConstantExpr(String value)

Creates a interval year-month constant expression from input value.

Specified by:

createIntervalYearMonthConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createIntervalDayTimeConstantExpr

protected org.apache.calcite.rex.RexLiteral createIntervalDayTimeConstantExpr(String value)

Creates a interval day-time constant expression from input value.

Specified by:

createIntervalDayTimeConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createIntervalYearConstantExpr

protected org.apache.calcite.rex.RexLiteral createIntervalYearConstantExpr(String value)

Creates a interval year constant expression from input value.

Specified by:

createIntervalYearConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createIntervalMonthConstantExpr

protected org.apache.calcite.rex.RexLiteral createIntervalMonthConstantExpr(String value)

Creates a interval month constant expression from input value.

Specified by:

createIntervalMonthConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createIntervalDayConstantExpr

protected org.apache.calcite.rex.RexLiteral createIntervalDayConstantExpr(String value)

Creates a interval day constant expression from input value.

Specified by:

createIntervalDayConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createIntervalHourConstantExpr

protected org.apache.calcite.rex.RexLiteral createIntervalHourConstantExpr(String value)

Creates a interval hour constant expression from input value.

Specified by:

createIntervalHourConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createIntervalMinuteConstantExpr

protected org.apache.calcite.rex.RexLiteral createIntervalMinuteConstantExpr(String value)

Creates a interval minute constant expression from input value.

Specified by:

createIntervalMinuteConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createIntervalSecondConstantExpr

protected org.apache.calcite.rex.RexLiteral createIntervalSecondConstantExpr(String value)

Creates a interval second constant expression from input value.

Specified by:

createIntervalSecondConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

createStructExpr

protected org.apache.calcite.rex.RexNode createStructExpr(TypeInfo typeInfo,
                                                          List<org.apache.calcite.rex.RexNode> operands)
                                                   throws CalciteSemanticException

Creates a struct with given type.

Specified by:

createStructExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

Throws:

CalciteSemanticException

createConstantExpr

protected org.apache.calcite.rex.RexNode createConstantExpr(TypeInfo typeInfo,
                                                            Object constantValue)
                                                     throws CalciteSemanticException

Creates a constant expression from input value with given type.

Specified by:

createConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

Throws:

CalciteSemanticException

createNestedColumnRefExpr

protected org.apache.calcite.rex.RexNode createNestedColumnRefExpr(TypeInfo typeInfo,
                                                                   org.apache.calcite.rex.RexNode expr,
                                                                   String fieldName,
                                                                   Boolean isList)
                                                            throws CalciteSemanticException

Creates a reference to a nested field.

Specified by:

createNestedColumnRefExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

Throws:

CalciteSemanticException

createFuncCallExpr

protected org.apache.calcite.rex.RexNode createFuncCallExpr(TypeInfo typeInfo,
                                                            FunctionInfo functionInfo,
                                                            String funcText,
                                                            List<org.apache.calcite.rex.RexNode> inputs)
                                                     throws SemanticException

Creates function call expression.

Specified by:

createFuncCallExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

Throws:

SemanticException

createExprsListExpr

protected org.apache.calcite.rex.RexNode createExprsListExpr()

Creates list of expressions.

Specified by:

createExprsListExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

addExprToExprsList

protected void addExprToExprsList(org.apache.calcite.rex.RexNode columnList,
                                  org.apache.calcite.rex.RexNode expr)

Adds expression to list of expressions (list needs to be mutable).

Specified by:

addExprToExprsList in class ExprFactory<org.apache.calcite.rex.RexNode>

isConstantExpr

protected boolean isConstantExpr(Object o)

Returns whether the input expression is a constant expression.

Specified by:

isConstantExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

isFuncCallExpr

protected boolean isFuncCallExpr(Object o)

Returns whether the input expression is a function call.

Specified by:

isFuncCallExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

getConstantValue

protected Object getConstantValue(org.apache.calcite.rex.RexNode expr)

Returns value stored in a constant expression.

Specified by:

getConstantValue in class ExprFactory<org.apache.calcite.rex.RexNode>

getConstantValueAsString

protected String getConstantValueAsString(org.apache.calcite.rex.RexNode expr)

Returns value stored in a constant expression as String.

Specified by:

getConstantValueAsString in class ExprFactory<org.apache.calcite.rex.RexNode>

isColumnRefExpr

protected boolean isColumnRefExpr(Object o)

Returns whether the input object is a column reference expression.

Specified by:

isColumnRefExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

getColumnName

protected String getColumnName(org.apache.calcite.rex.RexNode expr,
                               RowResolver rowResolver)

Returns column name referenced by a column expression.

Specified by:

getColumnName in class ExprFactory<org.apache.calcite.rex.RexNode>

isExprsListExpr

protected boolean isExprsListExpr(Object o)

Returns whether the input expression is a list of expressions.

Specified by:

isExprsListExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

getExprChildren

protected List<org.apache.calcite.rex.RexNode> getExprChildren(org.apache.calcite.rex.RexNode expr)

Returns the children from the input expression (if any).

Specified by:

getExprChildren in class ExprFactory<org.apache.calcite.rex.RexNode>

getTypeInfo

protected TypeInfo getTypeInfo(org.apache.calcite.rex.RexNode expr)

Returns the type for the input expression.

Specified by:

getTypeInfo in class ExprFactory<org.apache.calcite.rex.RexNode>

getStructTypeInfoList

protected List<TypeInfo> getStructTypeInfoList(org.apache.calcite.rex.RexNode expr)

Returns the list of types in the input struct expression.

Specified by:

getStructTypeInfoList in class ExprFactory<org.apache.calcite.rex.RexNode>

getStructNameList

protected List<String> getStructNameList(org.apache.calcite.rex.RexNode expr)

Returns the list of names in the input struct expression.

Specified by:

getStructNameList in class ExprFactory<org.apache.calcite.rex.RexNode>

isORFuncCallExpr

protected boolean isORFuncCallExpr(org.apache.calcite.rex.RexNode expr)

Returns whether the input expression is an OR function call.

Specified by:

isORFuncCallExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

isANDFuncCallExpr

protected boolean isANDFuncCallExpr(org.apache.calcite.rex.RexNode expr)

Returns whether the input expression is an AND function call.

Specified by:

isANDFuncCallExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

isConsistentWithinQuery

protected boolean isConsistentWithinQuery(FunctionInfo fi)

Specified by:

isConsistentWithinQuery in class ExprFactory<org.apache.calcite.rex.RexNode>

isStateful

protected boolean isStateful(FunctionInfo fi)

Specified by:

isStateful in class ExprFactory<org.apache.calcite.rex.RexNode>

isPOSITIVEFuncCallExpr

protected boolean isPOSITIVEFuncCallExpr(org.apache.calcite.rex.RexNode expr)

Returns whether the input expression is a POSITIVE function call.

Specified by:

isPOSITIVEFuncCallExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

isNEGATIVEFuncCallExpr

protected boolean isNEGATIVEFuncCallExpr(org.apache.calcite.rex.RexNode expr)

Returns whether the input expression is a NEGATIVE function call.

Specified by:

isNEGATIVEFuncCallExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

setTypeInfo

protected org.apache.calcite.rex.RexNode setTypeInfo(org.apache.calcite.rex.RexNode expr,
                                                     TypeInfo type)
                                              throws CalciteSemanticException

Changes the type of the input expression to the input type and returns resulting expression. If the input expression is mutable, it will not create a copy of the expression.

Specified by:

setTypeInfo in class ExprFactory<org.apache.calcite.rex.RexNode>

Throws:

CalciteSemanticException

convertCASEIntoCOALESCEFuncCallExpr

protected boolean convertCASEIntoCOALESCEFuncCallExpr(FunctionInfo fi,
                                                      List<org.apache.calcite.rex.RexNode> inputs)

Returns true if a CASE expression can be converted into a COALESCE function call.

Specified by:

convertCASEIntoCOALESCEFuncCallExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

foldExpr

protected org.apache.calcite.rex.RexNode foldExpr(org.apache.calcite.rex.RexNode expr)

Folds the input expression and returns resulting expression. If the input expression is mutable, it will not create a copy of the expression.

Specified by:

foldExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

isSTRUCTFuncCallExpr

protected boolean isSTRUCTFuncCallExpr(org.apache.calcite.rex.RexNode expr)

Returns whether the input expression is a STRUCT function call.

Specified by:

isSTRUCTFuncCallExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

isAndFunction

protected boolean isAndFunction(FunctionInfo fi)

Specified by:

isAndFunction in class ExprFactory<org.apache.calcite.rex.RexNode>

isOrFunction

protected boolean isOrFunction(FunctionInfo fi)

Specified by:

isOrFunction in class ExprFactory<org.apache.calcite.rex.RexNode>

isInFunction

protected boolean isInFunction(FunctionInfo fi)

Specified by:

isInFunction in class ExprFactory<org.apache.calcite.rex.RexNode>

isCompareFunction

protected boolean isCompareFunction(FunctionInfo fi)

Specified by:

isCompareFunction in class ExprFactory<org.apache.calcite.rex.RexNode>

isEqualFunction

protected boolean isEqualFunction(FunctionInfo fi)

Specified by:

isEqualFunction in class ExprFactory<org.apache.calcite.rex.RexNode>

isNSCompareFunction

protected boolean isNSCompareFunction(FunctionInfo fi)

Specified by:

isNSCompareFunction in class ExprFactory<org.apache.calcite.rex.RexNode>

isConstantStruct

protected boolean isConstantStruct(org.apache.calcite.rex.RexNode expr)

Returns whether the input expression is a struct of constant expressions (all of them).

Specified by:

isConstantStruct in class ExprFactory<org.apache.calcite.rex.RexNode>

createSubqueryExpr

protected org.apache.calcite.rex.RexNode createSubqueryExpr(TypeCheckCtx ctx,
                                                            ASTNode expr,
                                                            SubqueryType subqueryType,
                                                            Object[] inputs)
                                                     throws SemanticException

Creates subquery expression.

Specified by:

createSubqueryExpr in class ExprFactory<org.apache.calcite.rex.RexNode>

Throws:

SemanticException

getFunctionInfo

protected FunctionInfo getFunctionInfo(String funcName)
                                throws SemanticException

Returns the FunctionInfo given the name

Specified by:

getFunctionInfo in class ExprFactory<org.apache.calcite.rex.RexNode>

Throws:

SemanticException

replaceFieldNamesInStruct

protected org.apache.calcite.rex.RexNode replaceFieldNamesInStruct(org.apache.calcite.rex.RexNode expr,
                                                                   List<String> newFieldNames)

Specified by:

replaceFieldNamesInStruct in class ExprFactory<org.apache.calcite.rex.RexNode>

convertSubquerySomeAll

public static org.apache.calcite.rex.RexNode convertSubquerySomeAll(org.apache.calcite.plan.RelOptCluster cluster,
                                                                    ASTNode comparisonOp,
                                                                    SubqueryType subqueryType,
                                                                    org.apache.calcite.rel.RelNode subqueryRel,
                                                                    org.apache.calcite.rex.RexNode rexNodeLhs)
                                                             throws SemanticException

Throws:

SemanticException

makeHiveUnicodeString

public static org.apache.calcite.util.NlsString makeHiveUnicodeString(String text)