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I have multiple geography tables in PostGIS database. All of them have extents of (-180,-90;180,90), probably in their metadata, which makes editing difficult. I'd like to set the extent to exactly the bounding box of them, but I can't find any command to alter them.

Extents are viewed in QGIS by right clicking the layer and click Properties, then click Info tab.

How do I set the extents to exactly the bounding boxes of my geography tables?

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  • I do not know your purpose, but take a look at "CHECK" constraint.
    – Ralph Tee
    Jan 4, 2019 at 5:43
  • As per the Tour there should be only one question asked per question.
    – PolyGeo ♦
    Jan 4, 2019 at 5:58
  • in short, you can't; the GEOGRAPHY data type reqires the full spherical 'extent' for all implicit calculations. this datatype is not ecactly meant for GIS based visualization, but for precise trigonometric calculations; load and view your tables as GEOMETRYs, calculate in-DB with GEOGRAPHY.
    – geozelot
    Jan 6, 2019 at 12:00

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