from pycen import con

tab = 'rpg2020_ilots_anonymes_reg'
vm_tab = 'vm_'+tab[:-3]+'isere'


vm = '''
CREATE MATERIALIZED VIEW ref_territoire.{vm_name}
TABLESPACE pg_default
AS SELECT s.*
   FROM ref_territoire.{table} s, ref_territoire.dept_isere reg
   WHERE ST_INTERSECTS(s.geom,reg.geom)
WITH DATA;

-- View indexes:
CREATE UNIQUE INDEX {vm_name}_idx ON ref_territoire.{vm_name} USING btree (id_ilot);
CREATE INDEX {vm_name}_geom ON ref_territoire.{vm_name} USING gist (geom);
'''.format(vm_name=vm_tab,table=tab)

with con.begin() as cnx:
   cnx.execute(vm)