[postgis-devel] [PostGIS] #1048: [raster] Coverage version of stats functions should be aggregates

[PostGIS]

#1048: [raster] Coverage version of stats functions should be aggregates
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 Reporter:  pracine         |       Owner:  pracine      
     Type:  enhancement     |      Status:  new          
 Priority:  medium          |   Milestone:  PostGIS 2.0.0
Component:  postgis raster  |     Version:  trunk        
 Keywords:                  |  
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 Thinking about it twice I was wondering if it would not be better to
 implement the coverage versions of ST_Histogram, ST_SummaryStat, ST_count,
 ST_ValueCount, ST_ValuePercent (BTW should not there be a coverage version
 of ST_Quantile?) as aggregates. We would be able to limit the stats to
 tiles selected with a where clause.

 I guess you would just have to refactor the existing code into a complex
 state object with a state function accumulating stats and a final
 function.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/1048>
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