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+====== Add geometry with X,Y columns ======
+<code>
+ALTER TABLE your_table ADD COLUMN geom geometry(Point, 4326);
+UPDATE your_table SET geom = ST_SetSRID(ST_MakePoint(longitude, latitude), 4326);
+</code>
+====== Auto regenerate X,Y while inserting ======
+PostgreSQL 12+
+<code>
+ALTER TABLE test ADD COLUMN geom geometry(Point,5514) GENERATED ALWAYS AS (ST_SetSRID(ST_MakePoint(jtsk_x, jtsk_y), 5514)) STORED
+</code>
+<code>
+CREATE TABLE table(
+    ...
+    geom geometry(Point,4326) GENERATED ALWAYS AS (ST_SetSRID(ST_MakePoint(longitude, latitude), 4326)) STORED
+);
+</code>

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