Add direct support for other well known aggregate visitors (unique, avg,
std-dev)
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Key: GEOT-3210
URL: http://jira.codehaus.org/browse/GEOT-3210
Project: GeoTools
Issue Type: Improvement
Components: data jdbc-ng
Reporter: Andrea Aime
Assignee: Andrea Aime
Fix For: 2.6.5
We have direct support for aggregate visitors only for count, min, max, sum
(that's what SQLDialect.registerAggregateFunctions registers), leaving out some
other well supported examples out: avg, stddev, unique
We also have a "bounds" visitor that we can bind pretty easily (useful if one
has more than one geometry column and needs the bounds of a specific one)
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