PostGIS

summarystats
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summarystats

12.1. Raster Support Data types

Name

summarystats — A composite type returned by the ST_SummaryStats and ST_SummaryStatsAgg functions.

A composite type returned by the ST_SummaryStats and ST_SummaryStatsAgg functions.

[.term]# `+count +` integer #: Number of pixels counted for the summary statistics.
[.term]# `+sum +` double precision #: Sum of all counted pixel values.
[.term]# `+mean +` double precision #: Arithmetic mean of all counted pixel values.
[.term]# `+stddev +` double precision #: Standard deviation of all counted pixel values.
[.term]# `+min +` double precision #: Minimum value of counted pixel values.
[.term]# `+max +` double precision #: Maximum value of counted pixel values.