[postgis-users] Create Polygon from table columns

[confugere]

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Dear Community,
I would like to create a polygon from
a table containing landsat 8 corner coordinates in wgs84

CORNER_UL_LAT_PRODUCT DOUBLE PRECISION
CORNER_UL_LON_PRODUCT DOUBLE PRECISION
CORNER_UR_LAT_PRODUCT DOUBLE PRECISION
CORNER_UR_LON_PRODUCT DOUBLE PRECISION
CORNER_LL_LAT_PRODUCT DOUBLE PRECISION
CORNER_LL_LON_PRODUCT DOUBLE PRECISION
CORNER_LR_LAT_PRODUCT DOUBLE PRECISION
CORNER_LR_LON_PRODUCT DOUBLE PRECISION

i tried various things and my last effort looked like the following:
UPDATE "sat_l8_mtl"
SET geomz = ST_SetSRID
(ST_MakePolygon(
ST_MakeLine(
ST_MakePoint("CORNER_UL_LAT_PRODUCT" "CORNER_UL_LON_PRODUCT"),
ST_MakePoint("CORNER_LL_LAT_PRODUCT" "CORNER_LL_LON_PRODUCT"),
ST_MakePoint("CORNER_LR_LAT_PRODUCT" "CORNER_LR_LON_PRODUCT"),
ST_MakePoint("CORNER_UR_LAT_PRODUCT" "CORNER_UR_LON_PRODUCT"),
ST_MakePoint("CORNER_UL_LAT_PRODUCT" "CORNER_UL_LON_PRODUCT")
)),4326);
Maybe someone can help me out.
Greetings 



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