{"id":"https://openalex.org/W2145061307","doi":"https://doi.org/10.1145/1142473.1142480","title":"User-defined aggregate functions","display_name":"User-defined aggregate functions","publication_year":2006,"publication_date":"2006-06-27","ids":{"openalex":"https://openalex.org/W2145061307","doi":"https://doi.org/10.1145/1142473.1142480","mag":"2145061307"},"language":"en","primary_location":{"id":"doi:10.1145/1142473.1142480","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1142473.1142480","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2006 ACM SIGMOD international conference on Management of data","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5006348713","display_name":"Sara Cohen","orcid":"https://orcid.org/0000-0002-8482-9435"},"institutions":[{"id":"https://openalex.org/I174306211","display_name":"Technion \u2013 Israel Institute of Technology","ror":"https://ror.org/03qryx823","country_code":"IL","type":"education","lineage":["https://openalex.org/I174306211"]}],"countries":["IL"],"is_corresponding":true,"raw_author_name":"Sara Cohen","raw_affiliation_strings":["Technion---Israel Institute of Technology, Technion City, Haifa, Israel"],"affiliations":[{"raw_affiliation_string":"Technion---Israel Institute of Technology, Technion City, Haifa, Israel","institution_ids":["https://openalex.org/I174306211"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5006348713"],"corresponding_institution_ids":["https://openalex.org/I174306211"],"apc_list":null,"apc_paid":null,"fwci":2.4143,"has_fulltext":false,"cited_by_count":41,"citation_normalized_percentile":{"value":0.90280789,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"49","last_page":"60"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11106","display_name":"Data Management and Algorithms","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10772","display_name":"Distributed systems and fault tolerance","score":0.992900013923645,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8231245279312134},{"id":"https://openalex.org/keywords/rewriting","display_name":"Rewriting","score":0.7350120544433594},{"id":"https://openalex.org/keywords/aggregate","display_name":"Aggregate (composite)","score":0.6929786801338196},{"id":"https://openalex.org/keywords/bridge","display_name":"Bridge (graph theory)","score":0.617051899433136},{"id":"https://openalex.org/keywords/query-optimization","display_name":"Query optimization","score":0.6114718914031982},{"id":"https://openalex.org/keywords/class","display_name":"Class (philosophy)","score":0.5375146269798279},{"id":"https://openalex.org/keywords/relational-database","display_name":"Relational database","score":0.4753180146217346},{"id":"https://openalex.org/keywords/view","display_name":"View","score":0.4751286804676056},{"id":"https://openalex.org/keywords/query-by-example","display_name":"Query by Example","score":0.4652239978313446},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.4367491900920868},{"id":"https://openalex.org/keywords/online-aggregation","display_name":"Online aggregation","score":0.42565441131591797},{"id":"https://openalex.org/keywords/query-language","display_name":"Query language","score":0.42561060190200806},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.366019070148468},{"id":"https://openalex.org/keywords/database-design","display_name":"Database design","score":0.26410287618637085},{"id":"https://openalex.org/keywords/web-search-query","display_name":"Web search query","score":0.20121046900749207},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.1655384600162506},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.10049065947532654},{"id":"https://openalex.org/keywords/search-engine","display_name":"Search engine","score":0.09699702262878418}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8231245279312134},{"id":"https://openalex.org/C154690210","wikidata":"https://www.wikidata.org/wiki/Q1668499","display_name":"Rewriting","level":2,"score":0.7350120544433594},{"id":"https://openalex.org/C4679612","wikidata":"https://www.wikidata.org/wiki/Q866298","display_name":"Aggregate (composite)","level":2,"score":0.6929786801338196},{"id":"https://openalex.org/C100776233","wikidata":"https://www.wikidata.org/wiki/Q2532492","display_name":"Bridge (graph theory)","level":2,"score":0.617051899433136},{"id":"https://openalex.org/C157692150","wikidata":"https://www.wikidata.org/wiki/Q2919848","display_name":"Query optimization","level":2,"score":0.6114718914031982},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.5375146269798279},{"id":"https://openalex.org/C5655090","wikidata":"https://www.wikidata.org/wiki/Q192588","display_name":"Relational database","level":2,"score":0.4753180146217346},{"id":"https://openalex.org/C54239708","wikidata":"https://www.wikidata.org/wiki/Q1329910","display_name":"View","level":3,"score":0.4751286804676056},{"id":"https://openalex.org/C194222762","wikidata":"https://www.wikidata.org/wiki/Q114486","display_name":"Query by Example","level":4,"score":0.4652239978313446},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.4367491900920868},{"id":"https://openalex.org/C24028149","wikidata":"https://www.wikidata.org/wiki/Q7094056","display_name":"Online aggregation","level":5,"score":0.42565441131591797},{"id":"https://openalex.org/C192028432","wikidata":"https://www.wikidata.org/wiki/Q845739","display_name":"Query language","level":2,"score":0.42561060190200806},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.366019070148468},{"id":"https://openalex.org/C148840519","wikidata":"https://www.wikidata.org/wiki/Q1049878","display_name":"Database design","level":2,"score":0.26410287618637085},{"id":"https://openalex.org/C164120249","wikidata":"https://www.wikidata.org/wiki/Q995982","display_name":"Web search query","level":3,"score":0.20121046900749207},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.1655384600162506},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.10049065947532654},{"id":"https://openalex.org/C97854310","wikidata":"https://www.wikidata.org/wiki/Q19541","display_name":"Search engine","level":2,"score":0.09699702262878418},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1142473.1142480","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1142473.1142480","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2006 ACM SIGMOD international conference on Management of data","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.49000000953674316,"display_name":"Peace, Justice and strong institutions","id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":34,"referenced_works":["https://openalex.org/W1483342375","https://openalex.org/W1488870204","https://openalex.org/W1503132582","https://openalex.org/W1527733826","https://openalex.org/W1574894409","https://openalex.org/W1761301028","https://openalex.org/W1846087057","https://openalex.org/W1879587332","https://openalex.org/W1968210840","https://openalex.org/W1973382888","https://openalex.org/W1992810975","https://openalex.org/W2012670464","https://openalex.org/W2029038562","https://openalex.org/W2034347604","https://openalex.org/W2063645305","https://openalex.org/W2068901259","https://openalex.org/W2075827270","https://openalex.org/W2079590017","https://openalex.org/W2097989803","https://openalex.org/W2102387332","https://openalex.org/W2143401113","https://openalex.org/W2158114843","https://openalex.org/W2162621793","https://openalex.org/W2170515491","https://openalex.org/W2171492933","https://openalex.org/W2462092264","https://openalex.org/W2646887492","https://openalex.org/W4244600136","https://openalex.org/W6628966482","https://openalex.org/W6630795752","https://openalex.org/W6631453627","https://openalex.org/W6637898976","https://openalex.org/W6639055759","https://openalex.org/W6675450584"],"related_works":["https://openalex.org/W2554271401","https://openalex.org/W2406556739","https://openalex.org/W3125756434","https://openalex.org/W2889903446","https://openalex.org/W2955368753","https://openalex.org/W2150741898","https://openalex.org/W2588167896","https://openalex.org/W2970853428","https://openalex.org/W4244564558","https://openalex.org/W2186703450"],"abstract_inverted_index":{"The":[0],"ability":[1],"to":[2,76,85,90,101,151],"create":[3],"user-defined":[4],"aggregate":[5,51],"functions":[6],"(UDAs)":[7],"is":[8,39,55,84],"rapidly":[9],"becoming":[10],"a":[11,40,56,153,160],"standard":[12],"feature":[13],"in":[14,61,74],"relational":[15],"database":[16,71,161],"systems.":[17],"Therefore,":[18],"problems":[19,46,126],"such":[20],"as":[21],"query":[22,24,111,113],"optimization,":[23,112],"rewriting":[25,114],"and":[26,66,89,96,115,132,138,144],"view":[27,116],"maintenance":[28,117],"must":[29],"take":[30],"into":[31],"account":[32],"queries":[33,48,119],"(or":[34],"views)":[35],"with":[36,49,120],"UDAs.":[37,121],"There":[38],"wealth":[41],"of":[42,81,124],"research":[43],"on":[44],"these":[45,125],"for":[47,118,156],"general":[50],"functions.":[52],"Unfortunately,":[53],"there":[54],"mismatch":[57,88,135],"between":[58,94,136],"the":[59,67,70,92,106,134],"manner":[60],"which":[62],"UDAs":[63,100,158],"are":[64],"created,":[65],"information":[68],"that":[69,147],"system":[72],"requires":[73],"order":[75],"apply":[77],"previous":[78,130],"research.The":[79],"purpose":[80],"this":[82,87],"paper":[83],"explore":[86,133],"bridge":[91],"gap":[93],"theory":[95,137],"practice,":[97],"thereby":[98],"enabling":[99],"become":[102],"first-class":[103],"citizens":[104],"within":[105,159],"database.":[107],"Specifically,":[108],"we":[109,127],"consider":[110],"For":[122],"each":[123],"first":[128],"survey":[129],"results":[131],"practice.":[139],"We":[140],"then":[141],"present":[142],"theoretical":[143],"practical":[145],"insights":[146],"can":[148],"be":[149],"combined":[150],"derive":[152],"coherent":[154],"framework":[155],"defining":[157],"system.":[162]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":2},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":7},{"year":2012,"cited_by_count":3}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
