{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,14]],"date-time":"2026-03-14T09:49:46Z","timestamp":1773481786182,"version":"3.50.1"},"reference-count":55,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2019,12,20]],"date-time":"2019-12-20T00:00:00Z","timestamp":1576800000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.springer.com\/tdm"},{"start":{"date-parts":[[2019,12,20]],"date-time":"2019-12-20T00:00:00Z","timestamp":1576800000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/www.springer.com\/tdm"}],"funder":[{"DOI":"10.13039\/501100001744","name":"International Science and Technology Center","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001744","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000083","name":"Directorate for Computer and Information Science and Engineering","doi-asserted-by":"publisher","award":["IIS-1513407"],"award-info":[{"award-number":["IIS-1513407"]}],"id":[{"id":"10.13039\/100000083","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000083","name":"Directorate for Computer and Information Science and Engineering","doi-asserted-by":"publisher","award":["IIS-1633755"],"award-info":[{"award-number":["IIS-1633755"]}],"id":[{"id":"10.13039\/100000083","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000083","name":"Directorate for Computer and Information Science and Engineering","doi-asserted-by":"publisher","award":["IIS-1652750"],"award-info":[{"award-number":["IIS-1652750"]}],"id":[{"id":"10.13039\/100000083","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000070","name":"National Institute of Biomedical Imaging and Bioengineering","doi-asserted-by":"crossref","award":["1U54GM114838"],"award-info":[{"award-number":["1U54GM114838"]}],"id":[{"id":"10.13039\/100000070","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["The VLDB Journal"],"published-print":{"date-parts":[[2020,1]]},"DOI":"10.1007\/s00778-019-00594-5","type":"journal-article","created":{"date-parts":[[2019,12,20]],"date-time":"2019-12-20T14:03:41Z","timestamp":1576850621000},"page":"509-538","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["$$\\varvec{\\textsc {Orpheus}}$$DB: bolt-on versioning for relational databases (extended version)"],"prefix":"10.1007","volume":"29","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5291-0167","authenticated-orcid":false,"given":"Silu","family":"Huang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liqi","family":"Xu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jialin","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aaron J.","family":"Elmore","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aditya","family":"Parameswaran","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2019,12,20]]},"reference":[{"key":"594_CR1","unstructured":"For big-data scientists, \u2018janitor work\u2019 is key hurdle to insights. http:\/\/www.nytimes.com\/2014\/08\/18\/technology\/for-big-data-scientists-hurdle-to-insights-is-janitor-work.html?_r=0"},{"key":"594_CR2","unstructured":"Bhardwaj, A., Bhattacherjee, S., Chavan, A., Deshpande, A., Elmore, A.J., Madden, S., Parameswaran, A.G.: Datahub: collaborative data science & dataset version management at scale. In: CIDR (2015)"},{"issue":"D1","key":"594_CR3","doi-asserted-by":"publisher","first-page":"D1049","DOI":"10.1093\/nar\/gku1179","volume":"43","author":"GO Consortium","year":"2015","unstructured":"Consortium, G.O., et al.: Gene ontology consortium: going forward. Nucleic Acids Res. 43(D1), D1049\u2013D1056 (2015)","journal-title":"Nucleic Acids Res."},{"issue":"Database","key":"594_CR4","doi-asserted-by":"publisher","first-page":"D561","DOI":"10.1093\/nar\/gkq973","volume":"39","author":"D. Szklarczyk","year":"2010","unstructured":"Szklarczyk, D., et\u00a0al.: The string database in 2011: functional interaction networks of proteins, globally integrated and scored. Nucleic Acids Res. 39(1), D561\u2013D568. https:\/\/academic.oup.com\/nar\/article\/39\/suppl_1\/D561\/2509054","journal-title":"Nucleic Acids Research"},{"issue":"9","key":"594_CR5","doi-asserted-by":"publisher","first-page":"624","DOI":"10.14778\/2947618.2947619","volume":"9","author":"M Maddox","year":"2016","unstructured":"Maddox, M., Goehring, D., Elmore, A.J., Madden, S., Parameswaran, A., Deshpande, A.: Decibel: the relational dataset branching system. Proc. VLDB Endow. 9(9), 624\u2013635 (2016)","journal-title":"Proc. VLDB Endow."},{"issue":"12","key":"594_CR6","doi-asserted-by":"publisher","first-page":"1346","DOI":"10.14778\/2824032.2824035","volume":"8","author":"S Bhattacherjee","year":"2015","unstructured":"Bhattacherjee, S., Chavan, A., Huang, S., Deshpande, A., Parameswaran, A.: Principles of dataset versioning: exploring the recreation\/storage tradeoff. Proc. VLDB Endow. 8(12), 1346\u20131357 (2015)","journal-title":"Proc. VLDB Endow."},{"key":"594_CR7","unstructured":"Tansel, A.U., Clifford, J., Gadia, S., Jajodia, S., Segev, A., Snodgrass, R.: Temporal databases: theory, design, and implementation. Benjamin-Cummings Publishing Co., Inc (1993)"},{"issue":"1","key":"594_CR8","doi-asserted-by":"publisher","first-page":"36","DOI":"10.1109\/69.755613","volume":"11","author":"CS Jensen","year":"1999","unstructured":"Jensen, C.S., Snodgrass, R.T.: Temporal data management. IEEE Trans. Knowl. Data Eng. 11(1), 36\u201344 (1999)","journal-title":"IEEE Trans. Knowl. Data Eng."},{"issue":"4","key":"594_CR9","doi-asserted-by":"publisher","first-page":"513","DOI":"10.1109\/69.404027","volume":"7","author":"G Ozsoyoglu","year":"1995","unstructured":"Ozsoyoglu, G., Snodgrass, R.T.: Temporal and real-time databases: a survey. IEEE Trans. Knowl. Data Eng. 7(4), 513\u2013532 (1995)","journal-title":"IEEE Trans. Knowl. Data Eng."},{"issue":"3","key":"594_CR10","doi-asserted-by":"publisher","first-page":"34","DOI":"10.1145\/2380776.2380786","volume":"41","author":"K Kulkarni","year":"2012","unstructured":"Kulkarni, K., Michels, J.-E.: Temporal features in sql: 2011. ACM Sigmod Record 41(3), 34\u201343 (2012)","journal-title":"ACM Sigmod Record"},{"issue":"10","key":"594_CR11","doi-asserted-by":"publisher","first-page":"1130","DOI":"10.14778\/3115404.3115417","volume":"10","author":"S Huang","year":"2017","unstructured":"Huang, S., Xu, L., Liu, J., Elmore, A.J., Parameswaran, A.: O rpheus db: bolt-on versioning for relational databases. Proc. VLDB Endow. 10(10), 1130\u20131141 (2017)","journal-title":"Proc. VLDB Endow."},{"key":"594_CR12","doi-asserted-by":"crossref","unstructured":"Xu, L., Huang, S., Hui, S., Elmore, A., Parameswaran, A.: (2017) OrpheusDB : A lightweight approach to relational dataset versioning. Technical Report","DOI":"10.1145\/3035918.3058744"},{"issue":"1","key":"594_CR13","doi-asserted-by":"publisher","first-page":"78","DOI":"10.1145\/373626.373713","volume":"30","author":"RJ Miller","year":"2001","unstructured":"Miller, R.J., Hern\u00e1ndez, M.A., Haas, L.M., Yan, L.-L., Ho, C.H., Fagin, R., Popa, L.: The clio project: managing heterogeneity. SIgMOD Record 30(1), 78\u201383 (2001)","journal-title":"SIgMOD Record"},{"key":"594_CR14","doi-asserted-by":"crossref","unstructured":"Fisher, K., Walker, D., Zhu, K.Q., White, P.: From dirt to shovels: fully automatic tool generation from ad hoc data. In: ACM SIGPLAN Notices, vol. 43, pp. 421\u2013434. ACM (2008)","DOI":"10.1145\/1328897.1328488"},{"key":"594_CR15","unstructured":"PostgreSQL 9.5 intarray. https:\/\/www.postgresql.org\/docs\/current\/static\/intarray.html"},{"key":"594_CR16","unstructured":"DB2 9.7 array. https:\/\/www.ibm.com\/support\/knowledgecenter\/SSEPGG_9.7.0\/com.ibm.db2.luw.sql.ref.doc\/doc\/r0050497.html"},{"key":"594_CR17","unstructured":"Add array data type in MySql 7.1. https:\/\/dev.mysql.com\/worklog\/task\/?id=2081"},{"issue":"1","key":"594_CR18","doi-asserted-by":"publisher","first-page":"2","DOI":"10.1145\/974750.974752","volume":"29","author":"P Buneman","year":"2004","unstructured":"Buneman, P., Khanna, S., Tajima, K., Tan, W.-C.: Archiving scientific data. ACM Trans. Database Syst. (TODS) 29(1), 2\u201342 (2004)","journal-title":"ACM Trans. Database Syst. (TODS)"},{"key":"594_CR19","doi-asserted-by":"crossref","unstructured":"Jain, S., Moritz, D., Halperin, D., Howe, B., Lazowska, E.: Sqlshare: Results from a multi-year sql-as-a-service experiment. In: Proceedings of the 2016 International Conference on Management of Data, pp. 281\u2013293. ACM (2016)","DOI":"10.1145\/2882903.2882957"},{"key":"594_CR20","doi-asserted-by":"crossref","unstructured":"De Castro, C., Grandi, F., Scalas, M.R.: (1995) On schema versioning in temporal databases. In: Recent Advances in Temporal Databases, pp. 272\u2013291. Springer","DOI":"10.1007\/978-1-4471-3033-8_15"},{"issue":"5","key":"594_CR21","doi-asserted-by":"publisher","first-page":"249","DOI":"10.1016\/S0306-4379(97)00017-3","volume":"22","author":"C De Castro","year":"1997","unstructured":"De Castro, C., Grandi, F., Scalas, M.R.: Schema versioning for multitemporal relational databases. Inf. Syst. 22(5), 249\u2013290 (1997)","journal-title":"Inf. Syst."},{"issue":"1","key":"594_CR22","doi-asserted-by":"publisher","first-page":"882","DOI":"10.14778\/1453856.1453952","volume":"1","author":"HJ Moon","year":"2008","unstructured":"Moon, H.J., Curino, C.A., Deutsch, A., Hou, C.-Y., Zaniolo, C.: Managing and querying transaction-time databases under schema evolution. Proc. VLDB Endow. 1(1), 882\u2013895 (2008)","journal-title":"Proc. VLDB Endow."},{"key":"594_CR23","doi-asserted-by":"crossref","unstructured":"Moon, H.J., Curino, C.A., Zaniolo, C.: Scalable architecture and query optimization fortransaction-time dbs with evolving schemas. In: Proceedings of the 2010 ACM SIGMOD International Conference on Management of Data, pp. 207\u2013218. ACM (2010)","DOI":"10.1145\/1807167.1807192"},{"key":"594_CR24","unstructured":"Quamar, A., Deshpande, A., Lin, J.: (2014) Nscale: neighborhood-centric large-scale graph analytics in the cloud. VLDB J. 1\u201326"},{"key":"594_CR25","doi-asserted-by":"crossref","unstructured":"Wang, S., Dinh, T.T.A., Lin, Q., Xie, Z., Zhang, M., Cai, Q., Chen, G., Fu, W., Ooi, B.C., Ruan, P.: (2018) Forkbase: an efficient storage engine for blockchain and forkable applications. arXiv preprint\narXiv:1802.04949","DOI":"10.14778\/3231751.3231762"},{"key":"594_CR26","unstructured":"Chavan, A., Huang, S., Deshpande, A., Elmore, A., Madden, S., Parameswaran, A.: Towards a unified query language for provenance and versioning. In: 7th USENIX Workshop on the Theory and Practice of Provenance (TaPP 15) (2015)"},{"key":"594_CR27","unstructured":"Arab, B., Gawlick, D., Radhakrishnan, V., Guo, H., Glavic, B.: A generic provenance middleware for queries, updates, and transactions. In: 6th $$\\{$$USENIX$$\\}$$ Workshop on the Theory and Practice of Provenance (TaPP 2014) (2014)"},{"issue":"1","key":"594_CR28","doi-asserted-by":"publisher","first-page":"761","DOI":"10.14778\/1453856.1453939","volume":"1","author":"CA Curino","year":"2008","unstructured":"Curino, C.A., Moon, H.J., Zaniolo, C.: Graceful database schema evolution: the prism workbench. Proc. VLDB Endow. 1(1), 761\u2013772 (2008)","journal-title":"Proc. VLDB Endow."},{"issue":"10","key":"594_CR29","doi-asserted-by":"publisher","first-page":"968","DOI":"10.14778\/2336664.2336670","volume":"5","author":"Y Ahmad","year":"2012","unstructured":"Ahmad, Y., Kennedy, O., Koch, C., Nikolic, M.: Dbtoaster: higher-order delta processing for dynamic, frequently fresh views. Proc. VLDB Endow. 5(10), 968\u2013979 (2012)","journal-title":"Proc. VLDB Endow."},{"key":"594_CR30","doi-asserted-by":"crossref","unstructured":"Ahn, I., Snodgrass, R.: Performance evaluation of a temporal database management system. In: ACM SIGMOD Record, vol. 15, pp. 96\u2013107. ACM (1986)","DOI":"10.1145\/16856.16864"},{"issue":"4","key":"594_CR31","doi-asserted-by":"publisher","first-page":"236","DOI":"10.1145\/971699.318921","volume":"14","author":"R Snodgrass","year":"1985","unstructured":"Snodgrass, R., Ahn, I.: A taxonomy of time databases. ACM Sigmod Record 14(4), 236\u2013246 (1985)","journal-title":"ACM Sigmod Record"},{"issue":"1","key":"594_CR32","doi-asserted-by":"publisher","first-page":"65","DOI":"10.1145\/181550.181562","volume":"23","author":"RT Snodgrass","year":"1994","unstructured":"Snodgrass, R.T., Ahn, I., Ariav, G., Batory, D.S., Clifford, J., Dyreson, C.E., Elmasri, R., Grandi, F., Jensen, C.S., K\u00e4fer, W., et al.: Tsql2 language specification. Sigmod Record 23(1), 65\u201386 (1994)","journal-title":"Sigmod Record"},{"key":"594_CR33","unstructured":"Torp, K., Jensen, C.S., Snodgrass, R.T.: Stratum approaches to temporal DBMS implementation. In: Database Engineering and Applications Symposium, 1998. Proceedings. IDEAS\u201998. International, pp. 4\u201313. IEEE (1998)"},{"key":"594_CR34","unstructured":"Chen, C.X., Kong, J., Zaniolo, C.: Design and implementation of a temporal extension of sql. In: 19th International Conference on Data Engineering, 2003. Proceedings, pp. 689\u2013691. IEEE (2003)"},{"key":"594_CR35","volume-title":"A matter of time: temporal data management in db2 for z","author":"CM Saracco","year":"2010","unstructured":"Saracco, C.M., Nicola, M., Gandhi, L.: A matter of time: temporal data management in db2 for z. IBM Corporation, New York (2010)"},{"key":"594_CR36","doi-asserted-by":"crossref","unstructured":"Al-Kateb, M., Ghazal, A., Crolotte, A., Bhashyam, R., Chimanchode, J.,. Pakala, S.P.: Temporal query processing in teradata. In: Proceedings of the 16th International Conference on Extending Database Technology, pp. 573\u2013578. ACM (2013)","DOI":"10.1145\/2452376.2452443"},{"key":"594_CR37","doi-asserted-by":"crossref","unstructured":"Kaufmann, M., Manjili, A.A., Vagenas, P., Fischer, P.M., Kossmann, D., F\u00e4rber, F., May, N.: Timeline index: a unified data structure for processing queries on temporal data in sap hana. In: Proceedings of the 2013 ACM SIGMOD International Conference on Management of Data, pp. 1173\u20131184. ACM (2013)","DOI":"10.1145\/2463676.2465293"},{"issue":"1","key":"594_CR38","first-page":"28","volume":"35","author":"F F\u00e4rber","year":"2012","unstructured":"F\u00e4rber, F., May, N., Lehner, W., Gro\u00dfe, P., M\u00fcller, I., Rauhe, H., Dees, J.: The sap hana database-an architecture overview. IEEE Data Eng. Bull. 35(1), 28\u201333 (2012)","journal-title":"IEEE Data Eng. Bull."},{"key":"594_CR39","doi-asserted-by":"crossref","unstructured":"Kaufmann, M., Fischer, P.M., May, N., Kossmann, D.: Benchmarking bitemporal database systems: ready for the future or stuck in the past? In: EDBT, pp. 738\u2013749 (2014)","DOI":"10.1007\/978-3-319-04936-6_2"},{"issue":"2","key":"594_CR40","doi-asserted-by":"publisher","first-page":"158","DOI":"10.1145\/319806.319816","volume":"31","author":"B Salzberg","year":"1999","unstructured":"Salzberg, B., Tsotras, V.J.: Comparison of access methods for time-evolving data. ACM Comput. Surv. (CSUR) 31(2), 158\u2013221 (1999)","journal-title":"ACM Comput. Surv. (CSUR)"},{"key":"594_CR41","unstructured":"Lee, J.W., Loaiza, J., Stewart, M.J., Hu, W.-M., Bridge Jr, W.H.: Flashback database, Feb.\u00a020 2007. US Patent 7,181,476"},{"issue":"1","key":"594_CR42","doi-asserted-by":"publisher","first-page":"2","DOI":"10.1007\/s00778-003-0111-3","volume":"14","author":"D Gao","year":"2005","unstructured":"Gao, D., Jensen, S., Snodgrass, T., Soo, D.: Join operations in temporal databases. VLDB J. Int. J. Very Large Data Bases 14(1), 2\u201329 (2005)","journal-title":"VLDB J. Int. J. Very Large Data Bases"},{"issue":"4","key":"594_CR43","doi-asserted-by":"publisher","first-page":"703","DOI":"10.1007\/BF01354880","volume":"4","author":"GM Landau","year":"1995","unstructured":"Landau, G.M., Schmidt, J.P., Tsotras, V.J.: Historical queries along multiple lines of time evolution. VLDB J. Int. J. Very Large Data Bases 4(4), 703\u2013726 (1995)","journal-title":"VLDB J. Int. J. Very Large Data Bases"},{"key":"594_CR44","unstructured":"Salzberg, B.J., Lomet, D.B.: Branched and Temporal Index Structures. Northeastern University, College of Computer Science (1995)"},{"key":"594_CR45","volume-title":"Fully Persistent B+-trees,","author":"S Lanka","year":"1991","unstructured":"Lanka, S., Mays, E.: Fully Persistent B+-trees, vol. 20. ACM, New York (1991)"},{"key":"594_CR46","unstructured":"Jiang, L., Salzberg, B., Lomet, D.B., Garc\u00eda, M.B.: (2000) The bt-tree: a branched and temporal access method. In: VLDB, pp. 451\u2013460"},{"key":"594_CR47","unstructured":"Liquibase. http:\/\/www.liquibase.org\/"},{"key":"594_CR48","unstructured":"dbv. https:\/\/dbv.vizuina.com\/"},{"key":"594_CR49","unstructured":"Dat. http:\/\/datproject.org\/"},{"key":"594_CR50","unstructured":"Mode. https:\/\/about.modeanalytics.com\/"},{"issue":"1","key":"594_CR51","doi-asserted-by":"publisher","first-page":"359","DOI":"10.1137\/S1064827595287997","volume":"20","author":"G Karypis","year":"1998","unstructured":"Karypis, G., Kumar, V.: A fast and high quality multilevel scheme for partitioning irregular graphs. SIAM J. Sci. Comput. 20(1), 359\u2013392 (1998)","journal-title":"SIAM J. Sci. Comput."},{"issue":"6","key":"594_CR52","doi-asserted-by":"publisher","first-page":"475","DOI":"10.1016\/0306-4379(96)00024-5","volume":"21","author":"D-R Liu","year":"1996","unstructured":"Liu, D.-R., Shekhar, S.: Partitioning similarity graphs: a framework for declustering problems. Inf. Syst. 21(6), 475\u2013496 (1996)","journal-title":"Inf. Syst."},{"issue":"3","key":"594_CR53","doi-asserted-by":"publisher","first-page":"410","DOI":"10.1007\/s004530010050","volume":"29","author":"U Feige","year":"2001","unstructured":"Feige, U., Peleg, D., Kortsarz, G.: The dense k-subgraph problem. Algorithmica 29(3), 410\u2013421 (2001)","journal-title":"Algorithmica"},{"issue":"3","key":"594_CR54","doi-asserted-by":"publisher","first-page":"285","DOI":"10.1155\/2000\/19436","volume":"11","author":"G Karypis","year":"2000","unstructured":"Karypis, G., Kumar, V.: Multilevel k-way hypergraph partitioning. VLSI Des. 11(3), 285\u2013300 (2000)","journal-title":"VLSI Des."},{"issue":"6","key":"594_CR55","doi-asserted-by":"publisher","first-page":"845","DOI":"10.1007\/s00778-014-0362-1","volume":"23","author":"KA Kumar","year":"2014","unstructured":"Kumar, K.A., Quamar, A., Deshpande, A., Khuller, S.: Sword: workload-aware data placement and replica selection for cloud data management systems. VLDB J. 23(6), 845\u2013870 (2014)","journal-title":"VLDB J."}],"container-title":["The VLDB Journal"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/s00778-019-00594-5.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/article\/10.1007\/s00778-019-00594-5\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/s00778-019-00594-5.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,12,19]],"date-time":"2020-12-19T00:22:11Z","timestamp":1608337331000},"score":1,"resource":{"primary":{"URL":"http:\/\/link.springer.com\/10.1007\/s00778-019-00594-5"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,12,20]]},"references-count":55,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2020,1]]}},"alternative-id":["594"],"URL":"https:\/\/doi.org\/10.1007\/s00778-019-00594-5","relation":{},"ISSN":["1066-8888","0949-877X"],"issn-type":[{"value":"1066-8888","type":"print"},{"value":"0949-877X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,12,20]]},"assertion":[{"value":"1 December 2018","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"12 November 2019","order":2,"name":"revised","label":"Revised","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"6 December 2019","order":3,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"20 December 2019","order":4,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}}]}}