Hi,
I would suggest if you can try one of this options:
0- create a new index on " inter "column for grille table and in your WHERE
clause try to limit the number of update rows instead of 2mills for one
the whole transaction , something like :where inter > x and inter < y;
1- drop at least the grille_geom indexes and next
2- disable All the check constraints on grille tables, there are geometry
functions which possible are called every time when you run the updates.
Isabella
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