Package org.apache.flink.table.types.inference.strategies

Class Summary

Class	Description
AndArgumentTypeStrategy	Strategy for inferring and validating an argument using a conjunction of multiple ArgumentTypeStrategys into one like f(NUMERIC && LITERAL) Some ArgumentTypeStrategys cannot contribute an inferred type that is different from the input type (e.g.
AnyArgumentTypeStrategy	Strategy for an argument that can be of any type.
ArgumentMappingTypeStrategy	Type strategy that returns the n-th input argument, mapping it with the provided function.
ArrayAppendPrependTypeStrategy	Type strategy that returns a DataTypes.ARRAY(DataType) with element type equal to the type of the first argument if it's not nullable or element to add is not nullable, otherwise it returns DataTypes.ARRAY(DataType) with type equal to the type of the element to add to array.
ArrayComparableElementArgumentTypeStrategy	An ArgumentTypeStrategy that checks if the input argument is an ARRAY type and check whether its' elements are comparable.
ArrayElementTypeStrategy	Returns the element of an LogicalTypeFamily.COLLECTION type.
ArrayOfStringArgumentTypeStrategy	Strategy for an argument that must be an array of strings.
CollectTypeStrategy	Type strategy that returns a DataTypes.MULTISET(DataType) with element type equal to the type of the first argument.
CommonArgumentTypeStrategy	Argument type strategy that checks and casts for a common, least restrictive type of all arguments.
CommonArrayInputTypeStrategy	An InputTypeStrategy that expects that all arguments have a common array type.
CommonCollectionInputTypeStrategy	An InputTypeStrategy that expects that all arguments have a common type.
CommonInputTypeStrategy	An InputTypeStrategy that expects that all arguments have a common type.
CommonMapInputTypeStrategy	An InputTypeStrategy that expects that all arguments have a common map type.
CommonTypeStrategy	Type strategy that returns a common, least restrictive type of all arguments.
ComparableTypeStrategy	An InputTypeStrategy that checks if all input arguments can be compared with each other with the minimal provided comparison.
CompositeArgumentTypeStrategy	Strategy that checks that the argument has a composite type.
ConstraintArgumentTypeStrategy	Strategy for an argument that must fulfill a given constraint.
ExplicitArgumentTypeStrategy	Strategy for an argument that corresponds to an explicitly defined type.
ExplicitTypeStrategy	Type strategy that returns a fixed DataType.
FamilyArgumentTypeStrategy	Strategy for an argument that corresponds to a given LogicalTypeFamily and nullability.
FirstTypeStrategy	Type strategy that returns the first type that could be inferred.
ForceNullableTypeStrategy	Forces a given type strategy to be nullable.
HiveAggDecimalPlusTypeStrategy	Type strategy that returns the result type of a decimal addition, used internally for implementing native SUM/AVG aggregations on a Decimal type.
ItemAtIndexArgumentTypeStrategy	An ArgumentTypeStrategy that expects: a LogicalTypeFamily.NUMERIC if the first argument is an LogicalTypeRoot.ARRAY or LogicalTypeRoot.MULTISET the type to be equal to the key type of LogicalTypeRoot.MAP if the first argument is a map.
ItemAtTypeStrategy	An output type strategy for BuiltInFunctionDefinitions.AT.
JsonQueryOnErrorEmptyArgumentTypeStrategy	Argument strategy for BuiltInFunctionDefinitions.JSON_QUERY to check the `ON EMPTY` and/or `ON ERROR` behaviour in combination with the return type.
LiteralArgumentTypeStrategy	Strategy that checks if an argument is a literal.
MappingTypeStrategy	Type strategy that maps an InputTypeStrategy to a TypeStrategy if the input strategy infers compatible types.
MatchFamilyTypeStrategy	Type strategy that returns the given argument if it is of the same logical type family.
MissingTypeStrategy	Placeholder for a missing type strategy.
NullableIfArgsTypeStrategy	A type strategy that can be used to make a result type nullable if any or all of the selected input arguments are nullable.
OrArgumentTypeStrategy	Strategy for inferring and validating an argument using a disjunction of multiple ArgumentTypeStrategys into one like f(NUMERIC || STRING).
OrInputTypeStrategy	Strategy for inferring and validating the input using a disjunction of multiple InputTypeStrategys into one like f(NUMERIC) || f(STRING).
OutputArgumentTypeStrategy	Strategy for inferring an unknown argument type from the function's output DataType if available.
OverTypeStrategy	Specific InputTypeStrategy for BuiltInFunctionDefinitions.OVER.
ReinterpretCastInputTypeStrategy	InputTypeStrategy specific for BuiltInFunctionDefinitions.REINTERPRET_CAST.
RepeatingSequenceInputTypeStrategy	InputTypeStrategy composed of an arbitrarily often repeating list of ArgumentTypeStrategys.
RootArgumentTypeStrategy	Strategy for an argument that corresponds to a given LogicalTypeRoot and nullability.
RowtimeTypeStrategy	Type strategy for BuiltInFunctionDefinitions.ROWTIME which mirrors the type of the passed rowtime column, but returns LogicalTypeRoot.TIMESTAMP_WITHOUT_TIME_ZONE for a BATCH mode.
SequenceInputTypeStrategy	Strategy for inferring and validating a function signature like f(STRING, NUMERIC) or f(s STRING, n NUMERIC) using a sequence of ArgumentTypeStrategys.
SpecificInputTypeStrategies	Entry point for specific input type strategies not covered in InputTypeStrategies.
SpecificTypeStrategies	Entry point for specific type strategies not covered in TypeStrategies.
SubQueryInputTypeStrategy	InputTypeStrategy for BuiltInFunctionDefinitions.IN.
SubsequenceInputTypeStrategy	An InputTypeStrategy that lets you apply other strategies for subsequences of the actual arguments.
SubsequenceInputTypeStrategy.SubsequenceStrategyBuilder	A Builder for SubsequenceInputTypeStrategy.
SymbolArgumentTypeStrategy<T extends Enum<? extends TableSymbol>>	Strategy for a symbol argument of a specific TableSymbol enum.
ToTimestampLtzTypeStrategy	Type strategy of TO_TIMESTAMP_LTZ.
TypeLiteralArgumentTypeStrategy	Strategy that checks if an argument is a type literal.
VaryingSequenceInputTypeStrategy	Strategy for inferring and validating a varying function signature like f(INT, STRING, NUMERIC...) or f(i INT, str STRING, num NUMERIC...) using a sequence of ArgumentTypeStrategys.
VaryingStringTypeStrategy	A type strategy that ensures that the result type is either LogicalTypeRoot.VARCHAR or LogicalTypeRoot.VARBINARY from their corresponding non-varying roots.
WildcardInputTypeStrategy	Strategy that does not perform any modification or validation of the input.
WindowTimeIndictorInputTypeStrategy	An InputTypeStrategy for BuiltInFunctionDefinitions.ROWTIME and BuiltInFunctionDefinitions.PROCTIME.