GROUP-BY AND DISTINCT PUSHDOWN INTO UNION-ALL VIEWS
A mechanism is provided for performing a group-by pushdown operation or a distinct pushdown operation on a query. The query comprises an outer query block containing a view with a union-all operator, and the outer query block comprises an outer query statement referencing one or more columns of the...
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| creator | AHMED, RAFI WITKOWSKI, ANDREW |
| description | A mechanism is provided for performing a group-by pushdown operation or a distinct pushdown operation on a query. The query comprises an outer query block containing a view with a union-all operator, and the outer query block comprises an outer query statement referencing one or more columns of the union-all view and a group-by statement or a distinct keyword. Performing the group-by pushdown operation or the distinct pushdown operation on the query comprises modifying at least a given branch of the union-all view to include a distinct keyword in a query statement of the given branch or a group-by clause that groups results of the given branch by the one or more columns of the table of the given branch. |
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The query comprises an outer query block containing a view with a union-all operator, and the outer query block comprises an outer query statement referencing one or more columns of the union-all view and a group-by statement or a distinct keyword. Performing the group-by pushdown operation or the distinct pushdown operation on the query comprises modifying at least a given branch of the union-all view to include a distinct keyword in a query statement of the given branch or a group-by clause that groups results of the given branch by the one or more columns of the table of the given branch.</description><language>eng</language><subject>CALCULATING ; COMPUTING ; COUNTING ; ELECTRIC DIGITAL DATA PROCESSING ; PHYSICS</subject><creationdate>2024</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240829&DB=EPODOC&CC=US&NR=2024289330A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240829&DB=EPODOC&CC=US&NR=2024289330A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>AHMED, RAFI</creatorcontrib><creatorcontrib>WITKOWSKI, ANDREW</creatorcontrib><title>GROUP-BY AND DISTINCT PUSHDOWN INTO UNION-ALL VIEWS</title><description>A mechanism is provided for performing a group-by pushdown operation or a distinct pushdown operation on a query. 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| subjects | CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS |
| title | GROUP-BY AND DISTINCT PUSHDOWN INTO UNION-ALL VIEWS |
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