org.apache.pig.impl.logicalLayer
Classes 
BinaryExpressionOperator
CanonicalNamer
CastFinder
DotLOPrinter
ExpressionOperator
LOAdd
LOAnd
LOBinCond
LOCast
LOCogroup
LOConst
LOCross
LODefine
LODistinct
LODivide
LOEqual
LOFilter
LOForEach
LOGenerate
LogicalOperator
LogicalPlan
LogicalPlanBuilder
LogicalPlanCloneHelper
LogicalPlanCloner
LOGreaterThan
LOGreaterThanEqual
LOIsNull
LOJoin
LOLesserThan
LOLesserThanEqual
LOLimit
LOLoad
LOMapLookup
LOMod
LOMultiply
LONegative
LONot
LONotEqual
LOOr
LOPrinter
LOProject
LORegexp
LOSort
LOSplit
LOSplitOutput
LOStore
LOStream
LOSubtract
LOUnion
LOUserFunc
LOVisitor
PlanSetter
ProjectFixerUpper
ProjectionMapCalculator
ProjectionMapRemover
ProjectStarTranslator
RelationalOperator
RemoveRedundantOperators
TopLevelProjectFinder
UDFFinder
UnaryExpressionOperator
Enums 
LOJoin.JOINTYPE
Exceptions 
FrontendException