程序包 org.apache.flink.table.types.inference.strategies

类概要

类	说明
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.
CommonArgumentTypeStrategy	Argument type strategy that checks and casts for a common, least restrictive type of all arguments.
CommonInputTypeStrategy	An InputTypeStrategy that expects that all arguments have a common 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.
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 of the selected input arguments is 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.
RootArgumentTypeStrategy	Strategy for an argument that corresponds to a given LogicalTypeRoot and nullability.
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.
SubsequenceInputTypeStrategy	An InputTypeStrategy that lets you apply other strategies for subsequences of the actual arguments.
SubsequenceInputTypeStrategy.SubsequenceStrategyBuilder	A Builder for SubsequenceInputTypeStrategy.
SymbolArgumentTypeStrategy	Strategy for a symbol argument of a specific TableSymbol enum.
TypeLiteralArgumentTypeStrategy	Strategy that checks if an argument is a type literal.
UseArgumentTypeStrategy	Type strategy that returns the n-th input argument.
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.