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postgis/raster/test/regress/rt_histogram.sql
Bborie Park c07caf55e6 Fixed how the minimum possible value of a pixel type was being 
determined.  Added regression tests for band without NODATA.

git-svn-id: http://svn.osgeo.org/postgis/trunk@10029 b70326c6-7e19-0410-871a-916f4a2858ee
2012-07-04 00:33:00 +00:00

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5.7 KiB
PL/PgSQL
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SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram(
ST_SetValue(
ST_SetValue(
ST_SetValue(
ST_AddBand(
ST_MakeEmptyRaster(10, 10, 10, 10, 2, 2, 0, 0,0)
, 1, '64BF', 0, 0
)
, 1, 1, 1, -10
)
, 1, 5, 4, 0
)
, 1, 5, 5, 3.14159
)
);
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram(
ST_SetValue(
ST_SetValue(
ST_SetValue(
ST_AddBand(
ST_MakeEmptyRaster(10, 10, 10, 10, 2, 2, 0, 0,0)
, 1, '64BF', 0, NULL
)
, 1, 1, 1, -10
)
, 1, 5, 4, 0
)
, 1, 5, 5, 3.14159
)
);
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram(
ST_SetValue(
ST_SetValue(
ST_SetValue(
ST_AddBand(
ST_MakeEmptyRaster(10, 10, 10, 10, 2, 2, 0, 0,0)
, 1, '64BF', 0, 0
)
, 1, 1, 1, -10
)
, 1, 5, 4, 0
)
, 1, 5, 5, 3.14159
),
1, FALSE, 0, ARRAY[]::double precision[], FALSE
);
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram(
ST_SetValue(
ST_SetValue(
ST_SetValue(
ST_AddBand(
ST_MakeEmptyRaster(10, 10, 10, 10, 2, 2, 0, 0,0)
, 1, '64BF', 0, 0
)
, 1, 1, 1, -10
)
, 1, 5, 4, 0
)
, 1, 5, 5, 3.14159
),
1, FALSE, 1, FALSE
);
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram(
ST_SetValue(
ST_SetValue(
ST_SetValue(
ST_AddBand(
ST_MakeEmptyRaster(10, 10, 10, 10, 2, 2, 0, 0,0)
, 1, '64BF', 0, 0
)
, 1, 1, 1, -10
)
, 1, 5, 4, 0
)
, 1, 5, 5, 3.14159
),
1, FALSE, 5
);
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram(
ST_SetValue(
ST_SetValue(
ST_SetValue(
ST_AddBand(
ST_MakeEmptyRaster(10, 10, 10, 10, 2, 2, 0, 0,0)
, 1, '64BF', 0, 0
)
, 1, 1, 1, -10
)
, 1, 5, 4, 0
)
, 1, 5, 5, 3.14159
),
1, FALSE
);
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram(
ST_SetValue(
ST_SetValue(
ST_SetValue(
ST_AddBand(
ST_MakeEmptyRaster(10, 10, 10, 10, 2, 2, 0, 0,0)
, 1, '64BF', 0, 0
)
, 1, 1, 1, -10
)
, 1, 5, 4, 0
)
, 1, 5, 5, 3.14159
),
1
);
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram(
ST_SetValue(
ST_SetValue(
ST_SetValue(
ST_AddBand(
ST_MakeEmptyRaster(10, 10, 10, 10, 2, 2, 0, 0,0)
, 1, '64BF', 0, 0
)
, 1, 1, 1, -10
)
, 1, 5, 4, 0
)
, 1, 5, 5, 3.14159
),
1, 0, ARRAY[5]::double precision[], FALSE
);
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram(
ST_SetValue(
ST_SetValue(
ST_SetValue(
ST_AddBand(
ST_MakeEmptyRaster(10, 10, 10, 10, 2, 2, 0, 0,0)
, 1, '64BF', 0, 0
)
, 1, 1, 1, -10
)
, 1, 5, 4, 0
)
, 1, 5, 5, 3.14159
),
1, 3, FALSE
);
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram(
ST_SetValue(
ST_SetValue(
ST_SetValue(
ST_AddBand(
ST_MakeEmptyRaster(10, 10, 10, 10, 2, 2, 0, 0,0)
, 1, '64BF', 0, 0
)
, 1, 1, 1, -10
)
, 1, 5, 4, 0
)
, 1, 5, 5, 3.14159
),
1, 5
);
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram(
ST_SetValue(
ST_SetValue(
ST_SetValue(
ST_AddBand(
ST_MakeEmptyRaster(10, 10, 10, 10, 2, 2, 0, 0,0)
, 1, '64BF', 0, 0
)
, 1, 1, 1, -10
)
, 1, 5, 4, 0
)
, 1, 5, 5, 3.14159
),
2
);
BEGIN;
CREATE TEMP TABLE test_histogram
ON COMMIT DROP AS
SELECT
rast.rast
FROM (
SELECT ST_SetValue(
ST_SetValue(
ST_SetValue(
ST_AddBand(
ST_MakeEmptyRaster(10, 10, 10, 10, 2, 2, 0, 0,0)
, 1, '64BF', 0, 0
)
, 1, 1, 1, -10
)
, 1, 5, 4, 0
)
, 1, 5, 5, 3.14159
) AS rast
) AS rast
FULL JOIN (
SELECT generate_series(1, 10) AS id
) AS id
ON 1 = 1;
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram('test_histogram', 'rast', 1, TRUE, 0, NULL, FALSE);
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram('test_histogram', 'rast', 1, TRUE, 0, NULL, FALSE);
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram('test_histogram', 'rast', 1, FALSE);
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram('test_histogram', 'rast', 1, FALSE, 5, FALSE);
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram('test_histogram', 'rast', 1, 10);
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram('test_histogram', 'rast', 1, 3, FALSE);
SAVEPOINT test;
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram('test_histogram', 'rast', 2, TRUE, 0, NULL, FALSE);
ROLLBACK TO SAVEPOINT test;
RELEASE SAVEPOINT test;
SAVEPOINT test;
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram('test1', 'rast', 1, TRUE, 0, NULL, FALSE);
ROLLBACK TO SAVEPOINT test;
RELEASE SAVEPOINT test;
SAVEPOINT test;
SELECT
round(min::numeric, 3),
round(max::numeric, 3),
count,
round(percent::numeric, 3)
FROM ST_Histogram('test_histogram', 'rast1', 1, TRUE, 0, NULL, FALSE);
ROLLBACK TO SAVEPOINT test;
RELEASE SAVEPOINT test;
ROLLBACK;
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