Manual cherry pick of #35497 (#36341)

Automatic Merge

server/channels/db/migrations/postgres/000142_add_schemeid_to_roles.down.sql

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+ALTER TABLE roles DROP COLUMN IF EXISTS schemeid;

server/channels/db/migrations/postgres/000142_add_schemeid_to_roles.up.sql

@@ -0,0 +1 @@
+ALTER TABLE roles ADD COLUMN IF NOT EXISTS schemeid VARCHAR(26);

server/channels/db/migrations/postgres/000143_backfill_roles_schemeid.down.sql

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+UPDATE roles SET schemeid = NULL;

server/channels/db/migrations/postgres/000143_backfill_roles_schemeid.up.sql

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+UPDATE roles
+SET schemeid = match.scheme_id
+FROM (
+    SELECT DISTINCT ON (role_name) id AS scheme_id, role_name
+    FROM (
+        SELECT id, unnest(ARRAY[
+            defaultteamadminrole,
+            defaultteamuserrole,
+            defaultteamguestrole,
+            defaultchanneladminrole,
+            defaultchanneluserrole,
+            defaultchannelguestrole,
+            defaultplaybookadminrole,
+            defaultplaybookmemberrole,
+            defaultrunadminrole,
+            defaultrunmemberrole
+        ]) AS role_name
+        FROM schemes
+    ) expanded
+    WHERE role_name IS NOT NULL AND role_name <> ''
+    ORDER BY role_name, scheme_id
+) match
+WHERE roles.name = match.role_name;

server/channels/db/migrations/postgres/000144_add_roles_schemeid_index.down.sql

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+-- morph:nontransactional
+DROP INDEX CONCURRENTLY IF EXISTS idx_roles_scheme_id;

server/channels/db/migrations/postgres/000144_add_roles_schemeid_index.up.sql

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+-- morph:nontransactional
+CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_roles_scheme_id ON roles(schemeid);