@Proceedings{benedikt_et_al:LIPIcs.ICDT.2017, title = {{LIPIcs, Volume 68, ICDT'17, Complete Volume}}, booktitle = {20th International Conference on Database Theory (ICDT 2017)}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-024-8}, ISSN = {1868-8969}, year = {2017}, volume = {68}, editor = {Benedikt, Michael and Orsi, Giorgio}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ICDT.2017}, URN = {urn:nbn:de:0030-drops-70689}, doi = {10.4230/LIPIcs.ICDT.2017}, annote = {Keywords: Database Management, Normal Forms, Schema and Subschema, Query Languages, \lbrackSystems\rbrack Query Processing, Relational Databases, Distributed Databases} }