Title
Increasing the Accuracy and Coverage of SQL Progress Indicators
Abstract
Recently, progress indicators have been proposed for long-running SQL queries in RDBMSs. Although the proposed techniques work well for a subset of SQL queries, they are preliminary in the sense that (1) they cannot provide non-trivial estimates for some SQL queries, and (2) the provided estimates can be rather imprecise in certain cases. In this paper, we consider the problem of supporting non-trivial progress indicators for a wider class of SQL queries with more precise estimates. We present a set of techniques in achieving this goal. We report an initial implementation of these techniques in PostgreSQL.
Year
DOI
Venue
2005
10.1109/ICDE.2005.79
ICDE
Keywords
Field
DocType
certain case,non-trivial progress indicator,non-trivial estimate,long-running sql query,sql progress indicators,precise estimate,proposed technique,wider class,sql query,progress indicator,initial implementation,rdbms,testing,pipelines,relational databases,cost function,sql
Data mining,PL/SQL,Stored procedure,Computer science,Data Transformation Services,Data definition language,Query by Example,Spatial query,Null (SQL),SQL/PSM,Database
Conference
ISSN
ISBN
Citations 
1084-4627
0-7695-2285-8
32
PageRank 
References 
Authors
2.67
12
4
Name
Order
Citations
PageRank
Gang Luo174144.73
Jeffrey F. Naughton283631913.71
Curt J. Ellmann327924.78
Michael W. Watzke41148.27