fix: ajout de suffixes dynamiques pour les indexes

Peut-être un poil overkill, mais assez simple

dora/sirene/backup.py

@@ -1,3 +1,5 @@
+import random
+
 from django.db import connection, transaction
 
 from .models import Establishment
@@ -48,18 +50,22 @@ def create_table(table_name: str):
 
 
 def create_indexes(table_name: str):
+    def _suffix():
+        # pas de risque ici : cette table n'est pas utilisée par l'ORM Django
+        return f"{random.getrandbits(16*8):8x}"
+
     create_indexes_ddl = f"""
     CREATE INDEX {table_name}_full_text_trgm_idx ON public.{table_name} USING gin (full_search_text gin_trgm_ops);
-    CREATE INDEX {table_name}_code_commune_100bb2ad ON public.{table_name} USING btree (city_code);
-    CREATE INDEX {table_name}_code_commune_100bb2ad_like ON public.{table_name} USING btree (city_code varchar_pattern_ops);
-    CREATE INDEX {table_name}_is_siege_9c0272c3 ON public.{table_name} USING btree (is_siege);
-    CREATE INDEX {table_name}_name_d8569d90 ON public.{table_name} USING btree (name);
-    CREATE INDEX {table_name}_name_d8569d90_like ON public.{table_name} USING btree (name varchar_pattern_ops);
-    CREATE INDEX {table_name}_parent_name_1990928d ON public.{table_name} USING btree (parent_name);
-    CREATE INDEX {table_name}_parent_name_1990928d_like ON public.{table_name} USING btree (parent_name varchar_pattern_ops);
-    CREATE INDEX {table_name}_siren_b19f551a ON public.{table_name} USING btree (siren);
-    CREATE INDEX {table_name}_siren_b19f551a_like ON public.{table_name} USING btree (siren varchar_pattern_ops);
-    CREATE INDEX {table_name}_siret_3eb91925_like ON public.{table_name} USING btree (siret varchar_pattern_ops);
+    CREATE INDEX {table_name}_code_commune_{_suffix()} ON public.{table_name} USING btree (city_code);
+    CREATE INDEX {table_name}_code_commune_{_suffix()}_like ON public.{table_name} USING btree (city_code varchar_pattern_ops);
+    CREATE INDEX {table_name}_is_siege_{_suffix()} ON public.{table_name} USING btree (is_siege);
+    CREATE INDEX {table_name}_name_{_suffix()} ON public.{table_name} USING btree (name);
+    CREATE INDEX {table_name}_name_{_suffix()}_like ON public.{table_name} USING btree (name varchar_pattern_ops);
+    CREATE INDEX {table_name}_parent_name_{_suffix()} ON public.{table_name} USING btree (parent_name);
+    CREATE INDEX {table_name}_parent_name_{_suffix()}_like ON public.{table_name} USING btree (parent_name varchar_pattern_ops);
+    CREATE INDEX {table_name}_siren_{_suffix()} ON public.{table_name} USING btree (siren);
+    CREATE INDEX {table_name}_siren_{_suffix()}_like ON public.{table_name} USING btree (siren varchar_pattern_ops);
+    CREATE INDEX {table_name}_siret_{_suffix()}_like ON public.{table_name} USING btree (siret varchar_pattern_ops);
     """
     with connection.cursor() as c:
         c.execute(create_indexes_ddl)