org.apache.pig.newplan.logical.relational
Classes 
LOCogroup
LOCross
LODistinct
LOFilter
LOForEach
LOGenerate
LogicalPlan
LogicalRelationalNodesVisitor
LogicalRelationalOperator
LogicalSchema
LogicalSchema.LogicalFieldSchema
LogToPhyTranslationVisitor
LOInnerLoad
LOJoin
LOLimit
LOLoad
LONative
LOSort
LOSplit
LOSplitOutput
LOStore
LOStream
LOUnion
Enums 
LOCogroup.GROUPTYPE
LOJoin.JOINTYPE
Exceptions 
SchemaNotDefinedException