Uses of Class
org.apache.pig.newplan.logical.relational.LogicalSchema

Packages that use LogicalSchema

Package	Description
org.apache.pig	Public interfaces and classes for Pig.
org.apache.pig.impl.util
org.apache.pig.newplan.logical
org.apache.pig.newplan.logical.optimizer
org.apache.pig.newplan.logical.relational
org.apache.pig.newplan.logical.rules
org.apache.pig.parser
org.apache.pig.pen

Uses of LogicalSchema in org.apache.pig

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

Constructor and Description
ResourceSchema(LogicalSchema pigSchema) Construct a ResourceSchema from a LogicalSchema
ResourceSchema(LogicalSchema pigSchema, SortInfo sortInfo) Only for use by Pig internal code.

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

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

Modifier and Type	Method and Description
static LogicalSchema	Utils.parseSchema(String schemaString)

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

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

Modifier and Type	Method and Description
static LogicalSchema	Util.translateSchema(Schema schema)

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

Modifier and Type	Method and Description
static Schema	Util.translateSchema(LogicalSchema schema) This function translates the new LogicalSchema into old Schema format required by PhysicalOperators

Uses of LogicalSchema in org.apache.pig.newplan.logical.optimizer

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

Modifier and Type	Method and Description
void	SchemaResetter.validate(LogicalSchema schema) Check if schema is valid (ready to be part of a final logical plan)

Uses of LogicalSchema in org.apache.pig.newplan.logical.relational

Fields in org.apache.pig.newplan.logical.relational declared as LogicalSchema

Modifier and Type	Field and Description
LogicalSchema	LogicalSchema.LogicalFieldSchema.schema
protected LogicalSchema	LogicalRelationalOperator.schema

Methods in org.apache.pig.newplan.logical.relational that return LogicalSchema

Modifier and Type	Method and Description
LogicalSchema	LogicalSchema.deepCopy()
LogicalSchema	LOForEach.dumpNestedSchema(String alias, String nestedAlias)
LogicalSchema	LOLoad.getDeterminedSchema()
abstract LogicalSchema	LogicalRelationalOperator.getSchema() Get the schema for the output of this relational operator.
LogicalSchema	LOUnion.getSchema()
LogicalSchema	LOStream.getSchema()
LogicalSchema	LOStore.getSchema()
LogicalSchema	LOSplitOutput.getSchema()
LogicalSchema	LOSplit.getSchema()
LogicalSchema	LOSort.getSchema()
LogicalSchema	LORank.getSchema() Get the schema for the output of LORank.
LogicalSchema	LONative.getSchema()
LogicalSchema	LOLoad.getSchema() Get the schema for this load.
LogicalSchema	LOLimit.getSchema()
LogicalSchema	LOJoin.getSchema()
LogicalSchema	LOInnerLoad.getSchema()
LogicalSchema	LOGenerate.getSchema()
LogicalSchema	LOForEach.getSchema()
LogicalSchema	LOFilter.getSchema()
LogicalSchema	LODistinct.getSchema()
LogicalSchema	LOCube.getSchema()
LogicalSchema	LOCross.getSchema()
LogicalSchema	LOCogroup.getSchema()
LogicalSchema	LOStream.getScriptSchema()
LogicalSchema	LOLoad.getScriptSchema()
static LogicalSchema	LogicalSchema.merge(LogicalSchema s1, LogicalSchema s2, LogicalSchema.MergeMode mode) Merge two schemas.
static LogicalSchema	LogicalSchema.mergeSchemaByAlias(LogicalSchema schema1, LogicalSchema 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 LogicalSchema	LogicalSchema.mergeSchemasByAlias(List<LogicalSchema> 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
LogicalSchema	LogicalSchema.mergeUid(LogicalSchema uidOnlySchema)

Methods in org.apache.pig.newplan.logical.relational that return types with arguments of type LogicalSchema

Modifier and Type	Method and Description
List<LogicalSchema>	LOGenerate.getOutputPlanSchemas() Get the output schema corresponding to each input expression plan
List<LogicalSchema>	LOGenerate.getUidOnlySchemas()
List<LogicalSchema>	LOGenerate.getUserDefinedSchema()

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

Modifier and Type	Method and Description
static boolean	LogicalSchema.castable(LogicalSchema inSch, LogicalSchema outSch) Recursively compare two schemas to check if the input schema can be cast to the cast schema
static boolean	LogicalSchema.equals(LogicalSchema schema, LogicalSchema other, boolean relaxInner, boolean relaxAlias) Recursively compare two schemas for equality
static boolean	LogicalSchema.isEqualUnlessUnknown(LogicalSchema s1, LogicalSchema s2)
static LogicalSchema	LogicalSchema.merge(LogicalSchema s1, LogicalSchema s2, LogicalSchema.MergeMode mode) Merge two schemas.
static LogicalSchema	LogicalSchema.mergeSchemaByAlias(LogicalSchema schema1, LogicalSchema 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
LogicalSchema	LogicalSchema.mergeUid(LogicalSchema uidOnlySchema)
void	LogicalRelationalOperator.neverUseForRealSetSchema(LogicalSchema schema) Only to be used by unit tests.
void	LogicalRelationalOperator.setSchema(LogicalSchema schema)
void	LOLoad.setScriptSchema(LogicalSchema schema)

Method parameters in org.apache.pig.newplan.logical.relational with type arguments of type LogicalSchema

Modifier and Type	Method and Description
static LogicalSchema	LogicalSchema.mergeSchemasByAlias(List<LogicalSchema> 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
void	LOGenerate.setOutputPlanSchemas(List<LogicalSchema> outputPlanSchemas)
void	LOGenerate.setUidOnlySchemas(List<LogicalSchema> uidOnlySchemas)
void	LOGenerate.setUserDefinedSchema(List<LogicalSchema> userDefinedSchema)

Constructors in org.apache.pig.newplan.logical.relational with parameters of type LogicalSchema

Constructor and Description
LogicalSchema.LogicalFieldSchema(String alias, LogicalSchema schema, byte type)
LogicalSchema.LogicalFieldSchema(String alias, LogicalSchema schema, byte type, long uid)
LOLoad(FileSpec loader, LogicalSchema schema, LogicalPlan plan, org.apache.hadoop.conf.Configuration conf, LoadFunc loadFunc, String signature) Used from the LogicalPlanBuilder
LOLoad(LogicalSchema schema, LogicalPlan plan) used for pattern matching
LOStream(LogicalPlan plan, ExecutableManager exeManager, StreamingCommand cmd, LogicalSchema schema)

Uses of LogicalSchema in org.apache.pig.newplan.logical.rules

Methods in org.apache.pig.newplan.logical.rules that return LogicalSchema

Modifier and Type	Method and Description
protected abstract LogicalSchema	TypeCastInserter.determineSchema(LogicalRelationalOperator op)
protected LogicalSchema	StreamTypeCastInserter.determineSchema(LogicalRelationalOperator op)
protected LogicalSchema	LoadTypeCastInserter.determineSchema(LogicalRelationalOperator op) if we are inserting casts in a load and if the loader implements determineSchema(), insert casts only where necessary Note that in this case, the data coming out of the loader is not a BYTEARRAY but is whatever determineSchema() says it is.

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

Modifier and Type	Method and Description
protected Set<Integer>	ColumnPruneHelper.getColumns(LogicalSchema schema, Set<Long> uids)

Uses of LogicalSchema in org.apache.pig.parser

Methods in org.apache.pig.parser that return LogicalSchema

Modifier and Type	Method and Description
LogicalSchema	QueryParserDriver.parseSchema(String input)

Uses of LogicalSchema in org.apache.pig.pen

Methods in org.apache.pig.pen that return LogicalSchema

Modifier and Type	Method and Description
LogicalSchema	Illustrator.getSchema()

Constructors in org.apache.pig.pen with parameters of type LogicalSchema

Constructor and Description
Illustrator(LineageTracer lineage, LinkedList<IdentityHashSet<Tuple>> equivalenceClasses, int maxRecords, IllustratorAttacher attacher, LogicalSchema schema, PigContext hadoopPigContext)

Constructor parameters in org.apache.pig.pen with type arguments of type LogicalSchema

Constructor and Description
IllustratorAttacher(PhysicalPlan plan, LineageTracer lineage, int maxRecords, Map<POLoad,LogicalSchema> poLoadToSchemaMap, PigContext hadoopPigContext)