Uses of Class
org.apache.pig.impl.logicalLayer.schema.Schema

Packages that use Schema

Package	Description
org.apache.pig	Public interfaces and classes for Pig.
org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators
org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators
org.apache.pig.builtin	This package contains builtin Pig UDFs.
org.apache.pig.builtin.mock
org.apache.pig.data	This package contains implementations of Pig specific data types as well as support functions for reading, writing, and using all Pig data types.
org.apache.pig.data.utils
org.apache.pig.impl.builtin
org.apache.pig.impl.logicalLayer.schema
org.apache.pig.impl.util
org.apache.pig.newplan.logical
org.apache.pig.newplan.logical.visitor
org.apache.pig.piggybank.evaluation
org.apache.pig.piggybank.evaluation.datetime
org.apache.pig.piggybank.evaluation.datetime.convert
org.apache.pig.piggybank.evaluation.datetime.diff
org.apache.pig.piggybank.evaluation.datetime.truncate
org.apache.pig.piggybank.evaluation.decode
org.apache.pig.piggybank.evaluation.math
org.apache.pig.piggybank.evaluation.stats
org.apache.pig.piggybank.evaluation.string
org.apache.pig.piggybank.evaluation.util
org.apache.pig.scripting.groovy
org.apache.pig.scripting.jruby
org.apache.pig.scripting.js
org.apache.pig.scripting.jython

Uses of Schema in org.apache.pig

Methods in org.apache.pig that return Schema

Modifier and Type	Method and Description
Schema	PigServer.dumpSchema(String alias) Write the schema for an alias to System.out.
Schema	PigServer.dumpSchemaNested(String alias, String nestedAlias) Write the schema for a nestedAlias to System.out.
Schema	FuncSpec.getInputArgsSchema()
Schema	EvalFunc.getInputSchema() This method is intended to be called by the user in EvalFunc to get the input schema of the EvalFunc
Schema	EvalFunc.outputSchema(Schema input) Report the schema of the output of this UDF.

Methods in org.apache.pig with parameters of type Schema

Modifier and Type	Method and Description
protected String	EvalFunc.getSchemaName(String name, Schema input)
Schema	EvalFunc.outputSchema(Schema input) Report the schema of the output of this UDF.
void	FuncSpec.setInputArgsSchema(Schema inputArgsSchema)
void	EvalFunc.setInputSchema(Schema input) This method is for internal use.

Constructors in org.apache.pig with parameters of type Schema

Constructor and Description
FuncSpec(String funcSpec, Schema inputArgsSchema)
FuncSpec(String className, String[] ctorArgs, Schema inputArgsSchema)
ResourceSchema(Schema pigSchema) Construct a ResourceSchema from a Schema
ResourceSchema(Schema pigSchema, SortInfo sortInfo) Only for use by Pig internal code.

Uses of Schema in org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators

Methods in org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators that return Schema

Modifier and Type	Method and Description
Schema	POUserFunc.outputSchema(Schema input)

Methods in org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators with parameters of type Schema

Modifier and Type	Method and Description
Schema	POUserFunc.outputSchema(Schema input)

Uses of Schema in org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators

Fields in org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators declared as Schema

Modifier and Type	Field and Description
protected Schema[]	POFRJoin.inputSchemas
protected Schema[]	POFRJoin.keySchemas

Methods in org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators that return Schema

Modifier and Type	Method and Description
Schema	POStore.getSchema()
Schema	POSkewedJoin.getSchema(int i)

Methods in org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators with parameters of type Schema

Modifier and Type	Method and Description
void	POSkewedJoin.addSchema(Schema s)
void	POStore.setSchema(Schema schema)

Constructors in org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators with parameters of type Schema

Constructor and Description
POForEach(OperatorKey operatorKey, int requestedParallelism, List<PhysicalPlan> innerPlans, List<Boolean> flattenList, Schema schema)
POFRJoin(OperatorKey k, int rp, List<PhysicalOperator> inp, List<List<PhysicalPlan>> ppLists, List<List<Byte>> keyTypes, FileSpec[] replFiles, int fragment, boolean isLeftOuter, Tuple nullTuple, Schema[] inputSchemas, Schema[] keySchemas)
POFRJoin(OperatorKey k, int rp, List<PhysicalOperator> inp, List<List<PhysicalPlan>> ppLists, List<List<Byte>> keyTypes, FileSpec[] replFiles, int fragment, boolean isLeftOuter, Tuple nullTuple, Schema[] inputSchemas, Schema[] keySchemas)
POMergeJoin(OperatorKey k, int rp, List<PhysicalOperator> inp, MultiMap<PhysicalOperator,PhysicalPlan> inpPlans, List<List<Byte>> keyTypes, LOJoin.JOINTYPE joinType, Schema leftInputSchema, Schema rightInputSchema, Schema mergedInputSchema)

Uses of Schema in org.apache.pig.builtin

Methods in org.apache.pig.builtin that return Schema

Modifier and Type	Method and Description
Schema	YearsBetween.outputSchema(Schema input)
Schema	WeeksBetween.outputSchema(Schema input)
Schema	VALUESET.outputSchema(Schema input)
Schema	VALUELIST.outputSchema(Schema input)
Schema	UniqueID.outputSchema(Schema input)
Schema	UPPER.outputSchema(Schema input) This method gives a name to the column.
Schema	UCFIRST.outputSchema(Schema input)
Schema	TupleSize.outputSchema(Schema input)
Schema	ToUnixTime.outputSchema(Schema input)
Schema	ToString.outputSchema(Schema input)
Schema	ToMilliSeconds.outputSchema(Schema input)
Schema	ToDate.outputSchema(Schema input)
Schema	TRIM.outputSchema(Schema input)
Schema	TOTUPLE.outputSchema(Schema input)
Schema	TOP.outputSchema(Schema input)
Schema	TOMAP.outputSchema(Schema input)
Schema	TOKENIZE.outputSchema(Schema input)
Schema	TOBAG.outputSchema(Schema inputSch)
Schema	SubtractDuration.outputSchema(Schema input)
Schema	StringSize.outputSchema(Schema input)
Schema	StringMin.outputSchema(Schema input)
Schema	StringMax.outputSchema(Schema input)
Schema	StringConcat.outputSchema(Schema input)
Schema	SecondsBetween.outputSchema(Schema input)
Schema	SUBSTRING.outputSchema(Schema input)
Schema	STRSPLITTOBAG.outputSchema(Schema input)
Schema	STRSPLIT.outputSchema(Schema input)
Schema	STARTSWITH.outputSchema(Schema input)
Schema	SPRINTF.outputSchema(Schema input)
Schema	SIZE.outputSchema(Schema input)
Schema	RollupDimensions.outputSchema(Schema input)
Schema	RTRIM.outputSchema(Schema input)
Schema	ROUND_TO.outputSchema(Schema input)
Schema	ROUND.outputSchema(Schema input)
Schema	REPLACE.outputSchema(Schema input)
Schema	REGEX_SEARCH.outputSchema(Schema input)
Schema	REGEX_EXTRACT_ALL.outputSchema(Schema input)
Schema	REGEX_EXTRACT.outputSchema(Schema input)
Schema	RANDOM.outputSchema(Schema input)
Schema	PluckTuple.outputSchema(Schema inputSchema)
Schema	MonthsBetween.outputSchema(Schema input)
Schema	MinutesBetween.outputSchema(Schema input)
Schema	MilliSecondsBetween.outputSchema(Schema input)
Schema	MapSize.outputSchema(Schema input)
Schema	LongAvg.outputSchema(Schema input)
Schema	LongAbs.outputSchema(Schema input)
Schema	LTRIM.outputSchema(Schema input)
Schema	LOWER.outputSchema(Schema input) This method gives a name to the column.
Schema	LCFIRST.outputSchema(Schema input)
Schema	LAST_INDEX_OF.outputSchema(Schema input)
Schema	KEYSET.outputSchema(Schema input)
Schema	InvokerGenerator.outputSchema(Schema input)
Schema	IntAvg.outputSchema(Schema input)
Schema	IntAbs.outputSchema(Schema input)
Schema	INVERSEMAP.outputSchema(Schema input)
Schema	INDEXOF.outputSchema(Schema input)
Schema	HoursBetween.outputSchema(Schema input)
Schema	HiveUDTF.outputSchema(Schema input)
Schema	HiveUDF.outputSchema(Schema input)
Schema	HiveUDAF.outputSchema(Schema input)
Schema	GetYear.outputSchema(Schema input)
Schema	GetWeekYear.outputSchema(Schema input)
Schema	GetWeek.outputSchema(Schema input)
Schema	GetSecond.outputSchema(Schema input)
Schema	GetMonth.outputSchema(Schema input)
Schema	GetMinute.outputSchema(Schema input)
Schema	GetMilliSecond.outputSchema(Schema input)
Schema	GetHour.outputSchema(Schema input)
Schema	GetDay.outputSchema(Schema input)
Schema	GenericInvoker.outputSchema(Schema input)
Schema	FloatRound.outputSchema(Schema input)
Schema	FloatAvg.outputSchema(Schema input)
Schema	FloatAbs.outputSchema(Schema input)
Schema	ENDSWITH.outputSchema(Schema input)
Schema	DoubleRound.outputSchema(Schema input)
Schema	DoubleAvg.outputSchema(Schema input)
Schema	DaysBetween.outputSchema(Schema input)
Schema	DateTimeMin.outputSchema(Schema input)
Schema	DateTimeMax.outputSchema(Schema input)
Schema	CubeDimensions.outputSchema(Schema input)
Schema	ConstantSize.outputSchema(Schema input)
Schema	COV.outputSchema(Schema input)
Schema	COUNT_STAR.outputSchema(Schema input)
Schema	COUNT.outputSchema(Schema input)
Schema	COR.outputSchema(Schema input)
Schema	CONCAT.outputSchema(Schema input)
Schema	BuildBloom.outputSchema(Schema input)
Schema	BigIntegerAvg.outputSchema(Schema input)
Schema	BigDecimalAvg.outputSchema(Schema input)
Schema	Base.outputSchema(Schema input)
Schema	BagToTuple.outputSchema(Schema inputSchema)
Schema	BagToString.outputSchema(Schema inputSchema)
Schema	BagSize.outputSchema(Schema input)
Schema	AlgebraicLongMathBase.outputSchema(Schema input)
Schema	AlgebraicIntMathBase.outputSchema(Schema input)
Schema	AlgebraicFloatMathBase.outputSchema(Schema input)
Schema	AlgebraicDoubleMathBase.outputSchema(Schema input)
Schema	AlgebraicByteArrayMathBase.outputSchema(Schema input)
Schema	AlgebraicBigIntegerMathBase.outputSchema(Schema input)
Schema	AlgebraicBigDecimalMathBase.outputSchema(Schema input)
Schema	AddDuration.outputSchema(Schema input)
Schema	AVG.outputSchema(Schema input)
Schema	ARITY.outputSchema(Schema input) Deprecated.
Schema	ABS.outputSchema(Schema input)

Methods in org.apache.pig.builtin with parameters of type Schema

Modifier and Type	Method and Description
Schema	YearsBetween.outputSchema(Schema input)
Schema	WeeksBetween.outputSchema(Schema input)
Schema	VALUESET.outputSchema(Schema input)
Schema	VALUELIST.outputSchema(Schema input)
Schema	UniqueID.outputSchema(Schema input)
Schema	UPPER.outputSchema(Schema input) This method gives a name to the column.
Schema	UCFIRST.outputSchema(Schema input)
Schema	TupleSize.outputSchema(Schema input)
Schema	ToUnixTime.outputSchema(Schema input)
Schema	ToString.outputSchema(Schema input)
Schema	ToMilliSeconds.outputSchema(Schema input)
Schema	ToDate.outputSchema(Schema input)
Schema	TRIM.outputSchema(Schema input)
Schema	TOTUPLE.outputSchema(Schema input)
Schema	TOP.outputSchema(Schema input)
Schema	TOMAP.outputSchema(Schema input)
Schema	TOKENIZE.outputSchema(Schema input)
Schema	TOBAG.outputSchema(Schema inputSch)
Schema	SubtractDuration.outputSchema(Schema input)
Schema	StringSize.outputSchema(Schema input)
Schema	StringMin.outputSchema(Schema input)
Schema	StringMax.outputSchema(Schema input)
Schema	StringConcat.outputSchema(Schema input)
Schema	SecondsBetween.outputSchema(Schema input)
Schema	SUBSTRING.outputSchema(Schema input)
Schema	STRSPLITTOBAG.outputSchema(Schema input)
Schema	STRSPLIT.outputSchema(Schema input)
Schema	STARTSWITH.outputSchema(Schema input)
Schema	SPRINTF.outputSchema(Schema input)
Schema	SIZE.outputSchema(Schema input)
Schema	RollupDimensions.outputSchema(Schema input)
Schema	RTRIM.outputSchema(Schema input)
Schema	ROUND_TO.outputSchema(Schema input)
Schema	ROUND.outputSchema(Schema input)
Schema	REPLACE.outputSchema(Schema input)
Schema	REGEX_SEARCH.outputSchema(Schema input)
Schema	REGEX_EXTRACT_ALL.outputSchema(Schema input)
Schema	REGEX_EXTRACT.outputSchema(Schema input)
Schema	RANDOM.outputSchema(Schema input)
Schema	PluckTuple.outputSchema(Schema inputSchema)
Schema	MonthsBetween.outputSchema(Schema input)
Schema	MinutesBetween.outputSchema(Schema input)
Schema	MilliSecondsBetween.outputSchema(Schema input)
Schema	MapSize.outputSchema(Schema input)
Schema	LongAvg.outputSchema(Schema input)
Schema	LongAbs.outputSchema(Schema input)
Schema	LTRIM.outputSchema(Schema input)
Schema	LOWER.outputSchema(Schema input) This method gives a name to the column.
Schema	LCFIRST.outputSchema(Schema input)
Schema	LAST_INDEX_OF.outputSchema(Schema input)
Schema	KEYSET.outputSchema(Schema input)
Schema	InvokerGenerator.outputSchema(Schema input)
Schema	IntAvg.outputSchema(Schema input)
Schema	IntAbs.outputSchema(Schema input)
Schema	INVERSEMAP.outputSchema(Schema input)
Schema	INDEXOF.outputSchema(Schema input)
Schema	HoursBetween.outputSchema(Schema input)
Schema	HiveUDTF.outputSchema(Schema input)
Schema	HiveUDF.outputSchema(Schema input)
Schema	HiveUDAF.outputSchema(Schema input)
Schema	GetYear.outputSchema(Schema input)
Schema	GetWeekYear.outputSchema(Schema input)
Schema	GetWeek.outputSchema(Schema input)
Schema	GetSecond.outputSchema(Schema input)
Schema	GetMonth.outputSchema(Schema input)
Schema	GetMinute.outputSchema(Schema input)
Schema	GetMilliSecond.outputSchema(Schema input)
Schema	GetHour.outputSchema(Schema input)
Schema	GetDay.outputSchema(Schema input)
Schema	GenericInvoker.outputSchema(Schema input)
Schema	FloatRound.outputSchema(Schema input)
Schema	FloatAvg.outputSchema(Schema input)
Schema	FloatAbs.outputSchema(Schema input)
Schema	ENDSWITH.outputSchema(Schema input)
Schema	DoubleRound.outputSchema(Schema input)
Schema	DoubleAvg.outputSchema(Schema input)
Schema	DaysBetween.outputSchema(Schema input)
Schema	DateTimeMin.outputSchema(Schema input)
Schema	DateTimeMax.outputSchema(Schema input)
Schema	CubeDimensions.outputSchema(Schema input)
Schema	ConstantSize.outputSchema(Schema input)
Schema	COV.outputSchema(Schema input)
Schema	COUNT_STAR.outputSchema(Schema input)
Schema	COUNT.outputSchema(Schema input)
Schema	COR.outputSchema(Schema input)
Schema	CONCAT.outputSchema(Schema input)
Schema	BuildBloom.outputSchema(Schema input)
Schema	BigIntegerAvg.outputSchema(Schema input)
Schema	BigDecimalAvg.outputSchema(Schema input)
Schema	Base.outputSchema(Schema input)
Schema	BagToTuple.outputSchema(Schema inputSchema)
Schema	BagToString.outputSchema(Schema inputSchema)
Schema	BagSize.outputSchema(Schema input)
Schema	AlgebraicLongMathBase.outputSchema(Schema input)
Schema	AlgebraicIntMathBase.outputSchema(Schema input)
Schema	AlgebraicFloatMathBase.outputSchema(Schema input)
Schema	AlgebraicDoubleMathBase.outputSchema(Schema input)
Schema	AlgebraicByteArrayMathBase.outputSchema(Schema input)
Schema	AlgebraicBigIntegerMathBase.outputSchema(Schema input)
Schema	AlgebraicBigDecimalMathBase.outputSchema(Schema input)
Schema	AddDuration.outputSchema(Schema input)
Schema	AVG.outputSchema(Schema input)
Schema	ARITY.outputSchema(Schema input) Deprecated.
Schema	ABS.outputSchema(Schema input)

Uses of Schema in org.apache.pig.builtin.mock

Methods in org.apache.pig.builtin.mock that return Schema

Modifier and Type	Method and Description
Schema	Storage.Data.getSchema(String location)
static Schema	Storage.schema(String schema)

Methods in org.apache.pig.builtin.mock with parameters of type Schema

Modifier and Type	Method and Description
void	Storage.Data.set(String location, Schema schema, Collection<Tuple> data) to set the data in a location with a known schema
void	Storage.Data.set(String location, Schema schema, Tuple... data) to set the data in a location with a known schema
void	Storage.Data.setSchema(String location, Schema schema) to set the schema for a given location

Uses of Schema in org.apache.pig.data

Methods in org.apache.pig.data that return Schema

Modifier and Type	Method and Description
Schema	TypeAwareTuple.getSchema()
protected static Schema	SchemaTuple.staticSchemaGen(String s)

Methods in org.apache.pig.data with parameters of type Schema

Modifier and Type	Method and Description
protected static void	SchemaTupleClassGenerator.generateSchemaTuple(Schema s, boolean appendable, int id, File codeDir, SchemaTupleClassGenerator.GenContext... contexts) This class actually generates the code for a given Schema.
static SchemaTupleFactory	SchemaTupleFactory.getInstance(Schema s)
static SchemaTupleFactory	SchemaTupleFactory.getInstance(Schema s, boolean isAppendable)
static SchemaTupleFactory	SchemaTupleFactory.getInstance(Schema s, boolean isAppendable, SchemaTupleClassGenerator.GenContext context) This method is the publicly facing method which returns a SchemaTupleFactory which will generate SchemaTuples of the given Schema.
static boolean	SchemaTupleFactory.isGeneratable(Schema s) This method inspects a Schema to see whether or not a SchemaTuple implementation can be generated for the types present.
static SchemaTupleFactory	SchemaTupleBackend.newSchemaTupleFactory(Schema s, boolean isAppendable, SchemaTupleClassGenerator.GenContext context)
static int	SchemaTupleFrontend.registerToGenerateIfPossible(Schema udfSchema, boolean isAppendable, SchemaTupleClassGenerator.GenContext context) This method "registers" a Schema to be generated.

Uses of Schema in org.apache.pig.data.utils

Methods in org.apache.pig.data.utils that return Schema

Modifier and Type	Method and Description
Schema	StructuresHelper.SchemaKey.get()

Methods in org.apache.pig.data.utils with parameters of type Schema

Modifier and Type	Method and Description
static int	StructuresHelper.SchemaKey.hashCode(Schema s)

Constructors in org.apache.pig.data.utils with parameters of type Schema

Constructor and Description
SchemaKey(Schema s)

Uses of Schema in org.apache.pig.impl.builtin

Methods in org.apache.pig.impl.builtin that return Schema

Modifier and Type	Method and Description
Schema	StreamingUDF.outputSchema(Schema input)
Schema	IdentityColumn.outputSchema(Schema input)

Methods in org.apache.pig.impl.builtin with parameters of type Schema

Modifier and Type	Method and Description
Schema	StreamingUDF.outputSchema(Schema input)
Schema	IdentityColumn.outputSchema(Schema input)

Uses of Schema in org.apache.pig.impl.logicalLayer.schema

Fields in org.apache.pig.impl.logicalLayer.schema declared as Schema

Modifier and Type	Field and Description
Schema	Schema.FieldSchema.schema If this is a tuple itself, it can have a schema.

Methods in org.apache.pig.impl.logicalLayer.schema that return Schema

Modifier and Type	Method and Description
Schema	Schema.clone() Make a deep copy of a schema.
static Schema	Schema.generateNestedSchema(byte topLevelType, byte... innerTypes)
static Schema	Schema.getPigSchema(ResourceSchema rSchema)
Schema	Schema.merge(Schema other, boolean otherTakesAliasPrecedence) Merge this schema with the other schema
Schema	Schema.mergePrefixSchema(Schema other, boolean otherTakesAliasPrecedence) Recursively prefix merge two schemas
Schema	Schema.mergePrefixSchema(Schema other, boolean otherTakesAliasPrecedence, boolean allowMergeableTypes) Recursively prefix merge two schemas
static Schema	Schema.mergeSchema(Schema schema, Schema other, boolean otherTakesAliasPrecedence) Recursively merge two schemas
static Schema	Schema.mergeSchema(Schema schema, Schema other, boolean otherTakesAliasPrecedence, boolean allowDifferentSizeMerge, boolean allowIncompatibleTypes) Recursively merge two schemas
static Schema	Schema.mergeSchemaByAlias(Schema schema1, Schema schema2) Merges two schemas using their column aliases (unlike mergeSchema(..) functions which merge using positions) Schema will not be merged if types are incompatible, as per DataType.mergeType(..) For Tuples and Bags, SubSchemas have to be equal be considered compatible
static Schema	Schema.mergeSchemasByAlias(Collection<Schema> schemas) Merges collection of schemas using their column aliases (unlike mergeSchema(..) functions which merge using positions) Schema will not be merged if types are incompatible, as per DataType.mergeType(..) For Tuples and Bags, SubSchemas have to be equal be considered compatible
static Schema	SchemaUtil.newBagSchema(Byte[] dataTypes) Create a new tuple schema according one array: the type of fields, the tuple name is t, and the bag name is b.
static Schema	SchemaUtil.newBagSchema(List<Byte> dataTypes) Create a new tuple schema according one list: types of fields, the default names of fields are f0,f1,f2..., and the tuple is t, the bag name is b.
static Schema	SchemaUtil.newBagSchema(List<String> names, List<Byte> dataTypes) Create a bag schema according two list: name of fields, type of fields, and the default bag name is b, the default tuple name is t.
static Schema	SchemaUtil.newBagSchema(String[] names, Byte[] dataTypes) Create a new tuple schema according two arrays: names of field,types of fields.
static Schema	SchemaUtil.newBagSchema(String bagName, String tupleName, List<String> fieldNames, List<Byte> dataTypes) Create a bag schema according the bag name,tuple name and two list: name of fields, type of fields
static Schema	SchemaUtil.newBagSchema(String bagName, String tupleName, String[] fieldNames, Byte[] dataTypes)
static Schema	SchemaUtil.newTupleSchema(Byte[] dataTypes) Create a new tuple schema according one array: types of fields, the default names of fields are f0,f1,f2..., and the tuple name is t.
static Schema	SchemaUtil.newTupleSchema(List<Byte> dataTypes) Create a new tuple schema according one list: types of fields, the default names of fields are f0,f1,f2..., and the tuple name is t.
static Schema	SchemaUtil.newTupleSchema(List<String> fieldNames, List<Byte> dataTypes) Create a new tuple schema according the two list: names of fields, types of fields, the default tuple name is t.
static Schema	SchemaUtil.newTupleSchema(String[] names, Byte[] dataTypes) Create a new tuple schema according the two arrays: names of fields, types of fields, the default tuple name is t.
static Schema	SchemaUtil.newTupleSchema(String tupleName, List<String> fieldNames, List<Byte> dataTypes) Create a new tuple schema according the tuple name and two list: names of fields, types of fields
static Schema	SchemaUtil.newTupleSchema(String tupleName, String[] fieldNames, Byte[] dataTypes) Create a new tuple schema according the tuple name and two arrays: names of fields, types of fields

Methods in org.apache.pig.impl.logicalLayer.schema with parameters of type Schema

Modifier and Type	Method and Description
static boolean	Schema.castable(Schema cast, Schema input) Recursively compare two schemas to check if the input schema can be cast to the cast schema
static boolean	Schema.equals(Schema schema, Schema other, boolean relaxInner, boolean relaxAlias) Recursively compare two schemas for equality
Schema	Schema.merge(Schema other, boolean otherTakesAliasPrecedence) Merge this schema with the other schema
Schema	Schema.mergePrefixSchema(Schema other, boolean otherTakesAliasPrecedence) Recursively prefix merge two schemas
Schema	Schema.mergePrefixSchema(Schema other, boolean otherTakesAliasPrecedence, boolean allowMergeableTypes) Recursively prefix merge two schemas
static Schema	Schema.mergeSchema(Schema schema, Schema other, boolean otherTakesAliasPrecedence) Recursively merge two schemas
static Schema	Schema.mergeSchema(Schema schema, Schema other, boolean otherTakesAliasPrecedence, boolean allowDifferentSizeMerge, boolean allowIncompatibleTypes) Recursively merge two schemas
static Schema	Schema.mergeSchemaByAlias(Schema schema1, Schema schema2) Merges two schemas using their column aliases (unlike mergeSchema(..) functions which merge using positions) Schema will not be merged if types are incompatible, as per DataType.mergeType(..) For Tuples and Bags, SubSchemas have to be equal be considered compatible
void	Schema.reconcile(Schema other) Reconcile this schema with another schema.
static void	Schema.setSchemaDefaultType(Schema s, byte t) Recursively set NULL type to the specifid type in a schema
static void	Schema.stringifySchema(StringBuilder sb, Schema schema, byte type)
static void	Schema.stringifySchema(StringBuilder sb, Schema schema, byte type, int indentLevel)

Method parameters in org.apache.pig.impl.logicalLayer.schema with type arguments of type Schema

Modifier and Type	Method and Description
static Schema	Schema.mergeSchemasByAlias(Collection<Schema> schemas) Merges collection of schemas using their column aliases (unlike mergeSchema(..) functions which merge using positions) Schema will not be merged if types are incompatible, as per DataType.mergeType(..) For Tuples and Bags, SubSchemas have to be equal be considered compatible

Constructors in org.apache.pig.impl.logicalLayer.schema with parameters of type Schema

Constructor and Description
FieldSchema(String a, Schema s) Constructor for tuple fields.
FieldSchema(String a, Schema s, byte t) Constructor for tuple fields.
Schema(Schema s) Copy Constructor.

Uses of Schema in org.apache.pig.impl.util

Methods in org.apache.pig.impl.util that return Schema

Modifier and Type	Method and Description
static Schema	Utils.getSchemaFromBagSchemaString(String schemaString) getSchemaFromBagSchemaString NOTE: use this call when you need to generate a Schema object from the representation generated by Schema#toString.
static Schema	Utils.getSchemaFromString(String schemaString)
static Schema	Utils.getScriptSchema(String loadFuncSignature, org.apache.hadoop.conf.Configuration conf) A helper function for retrieving the script schema set by the LOLoad function.

Methods in org.apache.pig.impl.util with parameters of type Schema

Modifier and Type	Method and Description
static void	CompilerUtils.addEmptyBagOuterJoin(PhysicalPlan fePlan, Schema inputSchema, boolean skewedRightOuterJoin, String isFirstReduceOfKeyClassName)

Uses of Schema in org.apache.pig.newplan.logical

Methods in org.apache.pig.newplan.logical that return Schema

Modifier and Type	Method and Description
static Schema	Util.fixSchemaAddTupleInBag(Schema sch) If schema argument has fields where a bag does not contain a tuple schema, it inserts a tuple schema.
static Schema	Util.translateSchema(LogicalSchema schema) This function translates the new LogicalSchema into old Schema format required by PhysicalOperators

Methods in org.apache.pig.newplan.logical with parameters of type Schema

Modifier and Type	Method and Description
static Schema	Util.fixSchemaAddTupleInBag(Schema sch) If schema argument has fields where a bag does not contain a tuple schema, it inserts a tuple schema.
static LogicalSchema	Util.translateSchema(Schema schema)

Uses of Schema in org.apache.pig.newplan.logical.visitor

Methods in org.apache.pig.newplan.logical.visitor with parameters of type Schema

Modifier and Type	Method and Description
static boolean	TypeCheckingExpVisitor.schemaEqualsForMatching(Schema inputSchema, Schema udfSchema, EvalFunc.SchemaType udfSchemaType, boolean ignoreByteArrays) Compare two schemas for equality for argument matching purposes.

Uses of Schema in org.apache.pig.piggybank.evaluation

Methods in org.apache.pig.piggybank.evaluation that return Schema

Modifier and Type	Method and Description
Schema	Stitch.outputSchema(Schema inputSch)
Schema	Over.outputSchema(Schema inputSch)
Schema	MaxTupleBy1stField.outputSchema(Schema input)
Schema	IsNumeric.outputSchema(Schema input)
Schema	IsLong.outputSchema(Schema input)
Schema	IsInt.outputSchema(Schema input)
Schema	IsFloat.outputSchema(Schema input)
Schema	IsDouble.outputSchema(Schema input)
Schema	ExtremalTupleByNthField.outputSchema(Schema input)

Methods in org.apache.pig.piggybank.evaluation with parameters of type Schema

Modifier and Type	Method and Description
Schema	Stitch.outputSchema(Schema inputSch)
Schema	Over.outputSchema(Schema inputSch)
Schema	MaxTupleBy1stField.outputSchema(Schema input)
Schema	IsNumeric.outputSchema(Schema input)
Schema	IsLong.outputSchema(Schema input)
Schema	IsInt.outputSchema(Schema input)
Schema	IsFloat.outputSchema(Schema input)
Schema	IsDouble.outputSchema(Schema input)
Schema	ExtremalTupleByNthField.outputSchema(Schema input)

Uses of Schema in org.apache.pig.piggybank.evaluation.datetime

Methods in org.apache.pig.piggybank.evaluation.datetime that return Schema

Modifier and Type	Method and Description
Schema	DiffDate.outputSchema(Schema input)

Methods in org.apache.pig.piggybank.evaluation.datetime with parameters of type Schema

Modifier and Type	Method and Description
Schema	DiffDate.outputSchema(Schema input)

Uses of Schema in org.apache.pig.piggybank.evaluation.datetime.convert

Methods in org.apache.pig.piggybank.evaluation.datetime.convert that return Schema

Modifier and Type	Method and Description
Schema	UnixToISO.outputSchema(Schema input)
Schema	ISOToUnix.outputSchema(Schema input)
Schema	CustomFormatToISO.outputSchema(Schema input)

Methods in org.apache.pig.piggybank.evaluation.datetime.convert with parameters of type Schema

Modifier and Type	Method and Description
Schema	UnixToISO.outputSchema(Schema input)
Schema	ISOToUnix.outputSchema(Schema input)
Schema	CustomFormatToISO.outputSchema(Schema input)

Uses of Schema in org.apache.pig.piggybank.evaluation.datetime.diff

Methods in org.apache.pig.piggybank.evaluation.datetime.diff that return Schema

Modifier and Type	Method and Description
Schema	ISOYearsBetween.outputSchema(Schema input)
Schema	ISOSecondsBetween.outputSchema(Schema input)
Schema	ISOMonthsBetween.outputSchema(Schema input)
Schema	ISOMinutesBetween.outputSchema(Schema input)
Schema	ISOHoursBetween.outputSchema(Schema input)
Schema	ISODaysBetween.outputSchema(Schema input)

Methods in org.apache.pig.piggybank.evaluation.datetime.diff with parameters of type Schema

Modifier and Type	Method and Description
Schema	ISOYearsBetween.outputSchema(Schema input)
Schema	ISOSecondsBetween.outputSchema(Schema input)
Schema	ISOMonthsBetween.outputSchema(Schema input)
Schema	ISOMinutesBetween.outputSchema(Schema input)
Schema	ISOHoursBetween.outputSchema(Schema input)
Schema	ISODaysBetween.outputSchema(Schema input)

Uses of Schema in org.apache.pig.piggybank.evaluation.datetime.truncate

Methods in org.apache.pig.piggybank.evaluation.datetime.truncate that return Schema

Modifier and Type	Method and Description
Schema	ISOToYear.outputSchema(Schema input)
Schema	ISOToWeek.outputSchema(Schema input)
Schema	ISOToSecond.outputSchema(Schema input)
Schema	ISOToMonth.outputSchema(Schema input)
Schema	ISOToMinute.outputSchema(Schema input)
Schema	ISOToHour.outputSchema(Schema input)
Schema	ISOToDay.outputSchema(Schema input)

Methods in org.apache.pig.piggybank.evaluation.datetime.truncate with parameters of type Schema

Modifier and Type	Method and Description
Schema	ISOToYear.outputSchema(Schema input)
Schema	ISOToWeek.outputSchema(Schema input)
Schema	ISOToSecond.outputSchema(Schema input)
Schema	ISOToMonth.outputSchema(Schema input)
Schema	ISOToMinute.outputSchema(Schema input)
Schema	ISOToHour.outputSchema(Schema input)
Schema	ISOToDay.outputSchema(Schema input)

Uses of Schema in org.apache.pig.piggybank.evaluation.decode

Methods in org.apache.pig.piggybank.evaluation.decode that return Schema

Modifier and Type	Method and Description
Schema	Decode.outputSchema(Schema input)
Schema	BinCond.outputSchema(Schema input)
Schema	Bin.outputSchema(Schema input)

Methods in org.apache.pig.piggybank.evaluation.decode with parameters of type Schema

Modifier and Type	Method and Description
Schema	Decode.outputSchema(Schema input)
Schema	BinCond.outputSchema(Schema input)
Schema	Bin.outputSchema(Schema input)

Uses of Schema in org.apache.pig.piggybank.evaluation.math

Methods in org.apache.pig.piggybank.evaluation.math that return Schema

Modifier and Type	Method and Description
Schema	nextAfter.outputSchema(Schema input)
Schema	getExponent.outputSchema(Schema input)
Schema	copySign.outputSchema(Schema input)
Schema	ULP.outputSchema(Schema input)
Schema	SIGNUM.outputSchema(Schema input)
Schema	SCALB.outputSchema(Schema input)
Schema	ROUND.outputSchema(Schema input) Deprecated.
Schema	NEXTUP.outputSchema(Schema input)
Schema	MIN.outputSchema(Schema input)
Schema	MAX.outputSchema(Schema input)
Schema	LongMin.outputSchema(Schema input)
Schema	LongMax.outputSchema(Schema input)
Schema	LongAbs.outputSchema(Schema input) Deprecated.
Schema	IntMin.outputSchema(Schema input)
Schema	IntMax.outputSchema(Schema input)
Schema	IntAbs.outputSchema(Schema input) Deprecated.
Schema	FloatUlp.outputSchema(Schema input)
Schema	FloatSignum.outputSchema(Schema input)
Schema	FloatRound.outputSchema(Schema input) Deprecated.
Schema	FloatNextup.outputSchema(Schema input)
Schema	FloatNextAfter.outputSchema(Schema input)
Schema	FloatMin.outputSchema(Schema input)
Schema	FloatMax.outputSchema(Schema input)
Schema	FloatGetExponent.outputSchema(Schema input)
Schema	FloatCopySign.outputSchema(Schema input)
Schema	FloatAbs.outputSchema(Schema input) Deprecated.
Schema	DoubleUlp.outputSchema(Schema input)
Schema	DoubleSignum.outputSchema(Schema input)
Schema	DoubleRound.outputSchema(Schema input) Deprecated.
Schema	DoubleNextup.outputSchema(Schema input)
Schema	DoubleNextAfter.outputSchema(Schema input)
Schema	DoubleMin.outputSchema(Schema input)
Schema	DoubleMax.outputSchema(Schema input)
Schema	DoubleGetExponent.outputSchema(Schema input)
Schema	DoubleCopySign.outputSchema(Schema input)
Schema	DoubleAbs.outputSchema(Schema input) Deprecated.
Schema	Base.outputSchema(Schema input) Deprecated.
Schema	ABS.outputSchema(Schema input) Deprecated.

Methods in org.apache.pig.piggybank.evaluation.math with parameters of type Schema

Modifier and Type	Method and Description
Schema	nextAfter.outputSchema(Schema input)
Schema	getExponent.outputSchema(Schema input)
Schema	copySign.outputSchema(Schema input)
Schema	ULP.outputSchema(Schema input)
Schema	SIGNUM.outputSchema(Schema input)
Schema	SCALB.outputSchema(Schema input)
Schema	ROUND.outputSchema(Schema input) Deprecated.
Schema	NEXTUP.outputSchema(Schema input)
Schema	MIN.outputSchema(Schema input)
Schema	MAX.outputSchema(Schema input)
Schema	LongMin.outputSchema(Schema input)
Schema	LongMax.outputSchema(Schema input)
Schema	LongAbs.outputSchema(Schema input) Deprecated.
Schema	IntMin.outputSchema(Schema input)
Schema	IntMax.outputSchema(Schema input)
Schema	IntAbs.outputSchema(Schema input) Deprecated.
Schema	FloatUlp.outputSchema(Schema input)
Schema	FloatSignum.outputSchema(Schema input)
Schema	FloatRound.outputSchema(Schema input) Deprecated.
Schema	FloatNextup.outputSchema(Schema input)
Schema	FloatNextAfter.outputSchema(Schema input)
Schema	FloatMin.outputSchema(Schema input)
Schema	FloatMax.outputSchema(Schema input)
Schema	FloatGetExponent.outputSchema(Schema input)
Schema	FloatCopySign.outputSchema(Schema input)
Schema	FloatAbs.outputSchema(Schema input) Deprecated.
Schema	DoubleUlp.outputSchema(Schema input)
Schema	DoubleSignum.outputSchema(Schema input)
Schema	DoubleRound.outputSchema(Schema input) Deprecated.
Schema	DoubleNextup.outputSchema(Schema input)
Schema	DoubleNextAfter.outputSchema(Schema input)
Schema	DoubleMin.outputSchema(Schema input)
Schema	DoubleMax.outputSchema(Schema input)
Schema	DoubleGetExponent.outputSchema(Schema input)
Schema	DoubleCopySign.outputSchema(Schema input)
Schema	DoubleAbs.outputSchema(Schema input) Deprecated.
Schema	Base.outputSchema(Schema input) Deprecated.
Schema	ABS.outputSchema(Schema input) Deprecated.

Uses of Schema in org.apache.pig.piggybank.evaluation.stats

Methods in org.apache.pig.piggybank.evaluation.stats that return Schema

Modifier and Type	Method and Description
Schema	COV.outputSchema(Schema input) Deprecated.
Schema	COR.outputSchema(Schema input) Deprecated.

Methods in org.apache.pig.piggybank.evaluation.stats with parameters of type Schema

Modifier and Type	Method and Description
Schema	COV.outputSchema(Schema input) Deprecated.
Schema	COR.outputSchema(Schema input) Deprecated.

Uses of Schema in org.apache.pig.piggybank.evaluation.string

Methods in org.apache.pig.piggybank.evaluation.string that return Schema

Modifier and Type	Method and Description
Schema	UPPER.outputSchema(Schema input) Deprecated. This method gives a name to the column.
Schema	Stuff.outputSchema(Schema input)
Schema	Reverse.outputSchema(Schema input)
Schema	RegexMatch.outputSchema(Schema input)
Schema	RegexExtractAll.outputSchema(Schema input) Deprecated.
Schema	RegexExtract.outputSchema(Schema input) Deprecated.
Schema	REPLACE_MULTI.outputSchema(Schema input)
Schema	LookupInFiles.outputSchema(Schema input)
Schema	LENGTH.outputSchema(Schema input)
Schema	HashFNV.outputSchema(Schema input)

Methods in org.apache.pig.piggybank.evaluation.string with parameters of type Schema

Modifier and Type	Method and Description
Schema	UPPER.outputSchema(Schema input) Deprecated. This method gives a name to the column.
Schema	Stuff.outputSchema(Schema input)
Schema	Reverse.outputSchema(Schema input)
Schema	RegexMatch.outputSchema(Schema input)
Schema	RegexExtractAll.outputSchema(Schema input) Deprecated.
Schema	RegexExtract.outputSchema(Schema input) Deprecated.
Schema	REPLACE_MULTI.outputSchema(Schema input)
Schema	LookupInFiles.outputSchema(Schema input)
Schema	LENGTH.outputSchema(Schema input)
Schema	HashFNV.outputSchema(Schema input)

Uses of Schema in org.apache.pig.piggybank.evaluation.util

Methods in org.apache.pig.piggybank.evaluation.util that return Schema

Modifier and Type	Method and Description
Schema	Top.outputSchema(Schema input) Deprecated.
Schema	ToTuple.outputSchema(Schema input) Deprecated.
Schema	SearchQuery.outputSchema(Schema input)

Methods in org.apache.pig.piggybank.evaluation.util with parameters of type Schema

Modifier and Type	Method and Description
Schema	Top.outputSchema(Schema input) Deprecated.
Schema	ToTuple.outputSchema(Schema input) Deprecated.
Schema	SearchQuery.outputSchema(Schema input)

Uses of Schema in org.apache.pig.scripting.groovy

Methods in org.apache.pig.scripting.groovy that return Schema

Modifier and Type	Method and Description
Schema	GroovyEvalFunc.outputSchema(Schema input)
Schema	GroovyAccumulatorEvalFunc.outputSchema(Schema input)

Methods in org.apache.pig.scripting.groovy with parameters of type Schema

Modifier and Type	Method and Description
Schema	GroovyEvalFunc.outputSchema(Schema input)
Schema	GroovyAccumulatorEvalFunc.outputSchema(Schema input)

Uses of Schema in org.apache.pig.scripting.jruby

Methods in org.apache.pig.scripting.jruby that return Schema

Modifier and Type	Method and Description
Schema	RubySchema.getInternalSchema() This is a helper method to pull out the native Java type from the ruby object.
Schema	JrubyEvalFunc.outputSchema(Schema input) This method uses the schema method of the function encapsulation object to get the Schema information for the Ruby method.
Schema	JrubyAccumulatorEvalFunc.outputSchema(Schema input) This provides the Schema of the output, and leverages the get_output_schema function on the class object that is defined on the ruby side.
static Schema	RubySchema.rubyArgToSchema(Object arg) This is a helper function which converts objects into Schema objects.
static Schema	PigJrubyLibrary.rubyToPig(RubySchema rbObject) A type specific conversion routine.

Methods in org.apache.pig.scripting.jruby with parameters of type Schema

Modifier and Type	Method and Description
Schema	JrubyEvalFunc.outputSchema(Schema input) This method uses the schema method of the function encapsulation object to get the Schema information for the Ruby method.
Schema	JrubyAccumulatorEvalFunc.outputSchema(Schema input) This provides the Schema of the output, and leverages the get_output_schema function on the class object that is defined on the ruby side.
static RubySchema	PigJrubyLibrary.pigToRuby(org.jruby.Ruby ruby, Schema object) A type specific conversion routine.

Constructors in org.apache.pig.scripting.jruby with parameters of type Schema

Constructor and Description
RubySchema(org.jruby.Ruby ruby, org.jruby.RubyClass rc, Schema s) This constructor sets the encapsulated Schema to be equal to the given Schema.
RubySchema(org.jruby.Ruby ruby, org.jruby.RubyClass rc, Schema s, boolean copy) This constructor sets the encapsulated Schema to be equal to the given Schema.

Uses of Schema in org.apache.pig.scripting.js

Methods in org.apache.pig.scripting.js that return Schema

Modifier and Type	Method and Description
Schema	JsFunction.outputSchema(Schema input)

Methods in org.apache.pig.scripting.js with parameters of type Schema

Modifier and Type	Method and Description
Schema	JsFunction.outputSchema(Schema input)

Uses of Schema in org.apache.pig.scripting.jython

Methods in org.apache.pig.scripting.jython that return Schema

Modifier and Type	Method and Description
Schema	JythonFunction.outputSchema(Schema input)

Methods in org.apache.pig.scripting.jython with parameters of type Schema

Modifier and Type	Method and Description
Schema	JythonFunction.outputSchema(Schema input)