@Proceedings{barcelo_et_al:LIPIcs.ICDT.2019, title = {{LIPIcs, Volume 127, ICDT'19, Complete Volume}}, booktitle = {22nd International Conference on Database Theory (ICDT 2019)}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-101-6}, ISSN = {1868-8969}, year = {2019}, volume = {127}, editor = {Barcelo, Pablo and Calautti, Marco}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ICDT.2019}, URN = {urn:nbn:de:0030-drops-103630}, doi = {10.4230/LIPIcs.ICDT.2019}, annote = {Keywords: Computing Methodologies, Knowledge Representation and Reasoning, Theory of computation, Data modeling, Incomplete, inconsistent and uncertain database Information systems, Data management systems, Data streams, Database query processing, Incomplete data, Inconsistent data, Relational database model} }