gitignore: hide eclipse files
Merge Join and Union
MergeJoin
Plan structure
estimators fixes
DP partial order of plans
merge and merge join operators
Merge branch 'execution' into querydecomp
split condition cardinality
cost of merge join and sorting
commonSources fix on DP optimizer
Plan limit push down opt
VOID hotfix: regex not working with xsd:string
Bug in VOIDSourceSelector
EvaluationStrategy handles Plan expr
remove sources with zero triples
QueryLog writer
Merge branch 'master' into queryobserve