fix: make storage migrations idempotent

Author: TylerHillery

.github/workflows/ci.yml

@@ -95,6 +95,17 @@ jobs:
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Verify migration idempotency
+        run: |
+          psql "${{ env.DATABASE_URL }}" -c "DROP TABLE IF EXISTS storage.migrations;"
+          npm run migration:run
+        env:
+          DATABASE_URL: postgresql://postgres:[email protected]/postgres
+          DB_INSTALL_ROLES: true
+          ENABLE_DEFAULT_METRICS: false
+          PG_QUEUE_ENABLE: false
+          MULTI_TENANT: false
+
       - name: Ensure OrioleDB migration compatibility
         run: |
           npm run infra:restart:oriole

migrations/tenant/00010-search-files-search-function.sql

@@ -1,4 +1,3 @@
-drop function storage.search;
 
 create or replace function storage.search (
   prefix text,

migrations/tenant/0002-storage-schema.sql

@@ -18,11 +18,23 @@ BEGIN
     END IF;
 
   -- Install ROLES
-  EXECUTE 'CREATE ROLE ' || anon_role || ' NOLOGIN NOINHERIT';
-  EXECUTE 'CREATE ROLE ' || authenticated_role || ' NOLOGIN NOINHERIT';
-  EXECUTE 'CREATE ROLE ' || service_role || ' NOLOGIN NOINHERIT bypassrls';
+    IF NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = anon_role) THEN
+        EXECUTE 'CREATE ROLE ' || anon_role || ' NOLOGIN NOINHERIT';
+    END IF;
+
+    IF NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = authenticated_role  ) THEN
+        EXECUTE 'CREATE ROLE ' || authenticated_role || ' NOLOGIN NOINHERIT';
+    END IF;
+
+    IF NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = service_role) THEN
+        EXECUTE 'CREATE ROLE ' || service_role || ' NOLOGIN NOINHERIT bypassrls';
+    END IF;
+
+    IF NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = 'authenticator') THEN
+        EXECUTE 'CREATE USER authenticator NOINHERIT';
+    END IF;
+
 
-  create user authenticator noinherit;
   EXECUTE 'grant ' || anon_role || ' to authenticator';
   EXECUTE 'grant ' || authenticated_role || ' to authenticator';
   EXECUTE 'grant ' || service_role || ' to authenticator';
@@ -70,7 +82,6 @@ CREATE INDEX IF NOT EXISTS name_prefix_search ON storage.objects(name text_patte
 
 ALTER TABLE storage.objects ENABLE ROW LEVEL SECURITY;
 
-drop function if exists storage.foldername;
 CREATE OR REPLACE FUNCTION storage.foldername(name text)
  RETURNS text[]
  LANGUAGE plpgsql
@@ -83,7 +94,6 @@ BEGIN
 END
 $function$;
 
-drop function if exists storage.filename;
 CREATE OR REPLACE FUNCTION storage.filename(name text)
  RETURNS text
  LANGUAGE plpgsql
@@ -96,7 +106,6 @@ BEGIN
 END
 $function$;
 
-drop function if exists storage.extension;
 CREATE OR REPLACE FUNCTION storage.extension(name text)
  RETURNS text
  LANGUAGE plpgsql
@@ -113,7 +122,6 @@ END
 $function$;
 
 -- @todo can this query be optimised further?
-drop function if exists storage.search;
 CREATE OR REPLACE FUNCTION storage.search(prefix text, bucketname text, limits int DEFAULT 100, levels int DEFAULT 1, offsets int DEFAULT 0)
  RETURNS TABLE (
     name text,

migrations/tenant/0006-change-column-name-in-get-size.sql

@@ -1,4 +1,3 @@
-DROP FUNCTION storage.get_size_by_bucket();
 CREATE OR REPLACE FUNCTION storage.get_size_by_bucket()
  RETURNS TABLE (
     size BIGINT,

migrations/tenant/0009-fix-search-function.sql

@@ -1,4 +1,3 @@
-drop function if exists storage.search;
 CREATE OR REPLACE FUNCTION storage.search(prefix text, bucketname text, limits int DEFAULT 100, levels int DEFAULT 1, offsets int DEFAULT 0)
  RETURNS TABLE (
     name text,

migrations/tenant/0038-iceberg-catalog-flag-on-buckets.sql

@@ -40,7 +40,9 @@ DO $$
             updated_at timestamptz NOT NULL default now()
         );
 
-        CREATE UNIQUE INDEX IF NOT EXISTS idx_iceberg_namespaces_bucket_id ON storage.iceberg_namespaces (bucket_id, name);
+        IF EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name = 'iceberg_namespaces' AND column_name = 'bucket_id') THEN
+            CREATE UNIQUE INDEX IF NOT EXISTS idx_iceberg_namespaces_bucket_id ON storage.iceberg_namespaces (bucket_id, name);
+        END IF;
 
         CREATE TABLE IF NOT EXISTS storage.iceberg_tables (
           id uuid primary key default gen_random_uuid(),
@@ -52,6 +54,7 @@ DO $$
           updated_at timestamptz NOT NULL default now()
         );
 
+        DROP INDEX IF EXISTS idx_iceberg_tables_namespace_id;
         CREATE UNIQUE INDEX idx_iceberg_tables_namespace_id ON storage.iceberg_tables (namespace_id, name);
 
         ALTER TABLE storage.iceberg_namespaces ENABLE ROW LEVEL SECURITY;

migrations/tenant/0039-add-search-v2-sort-support.sql

@@ -1,4 +1,3 @@
-DROP FUNCTION IF EXISTS storage.search_v2;
 CREATE OR REPLACE FUNCTION storage.search_v2 (
     prefix text,
     bucket_name text,