is_view="$(test -e "$postprocess_sql" \

&& grep -F force_update_view "$postprocess_sql" >/dev/null; exit2bool)"

map_table()

# note that collisions may prevent all renames from being made at once.

# if this is the case, run map_table repeatedly until no more renames are made:

	if test "$is_view"; then return 0; fi # do not rename view columns

	table_make map.csv

	psql <<EOF

SELECT util.reset_map_table('$map_table');

ALTER TABLE $map_table DISABLE TRIGGER map_filter_insert;