fix(indexes): fields vector to array

Following: https://github.com/supabase/supabase/pull/33645\#discussion_r1957551271

Author: avallete

src/lib/sql/indexes.sql

@@ -14,10 +14,10 @@ SELECT
     idx.indisready AS is_ready,
     idx.indislive AS is_live,
     idx.indisreplident AS is_replica_identity,
-    idx.indkey AS key_attributes,
-    idx.indcollation AS collation,
-    idx.indclass AS class,
-    idx.indoption AS options,
+    idx.indkey::smallint[] AS key_attributes,
+    idx.indcollation::integer[] AS collation,
+    idx.indclass::integer[] AS class,
+    idx.indoption::smallint[] AS options,
     idx.indpred AS index_predicate,
     obj_description(idx.indexrelid, 'pg_class') AS comment,
     ix.indexdef as index_definition,

test/server/indexes.ts

@@ -15,8 +15,12 @@ test('list indexes', async () => {
     {
       "access_method": "btree",
       "check_xmin": false,
-      "class": "3124",
-      "collation": "0",
+      "class": [
+        3124,
+      ],
+      "collation": [
+        0,
+      ],
       "comment": null,
       "id": 16399,
       "index_attributes": [
@@ -37,10 +41,14 @@ test('list indexes', async () => {
       "is_replica_identity": false,
       "is_unique": true,
       "is_valid": true,
-      "key_attributes": "1",
+      "key_attributes": [
+        1,
+      ],
       "number_of_attributes": 1,
       "number_of_key_attributes": 1,
-      "options": "0",
+      "options": [
+        0,
+      ],
       "schema": "public",
       "table_id": 16393,
     }
@@ -56,8 +64,12 @@ test('retrieve index', async () => {
     {
       "access_method": "btree",
       "check_xmin": false,
-      "class": "3124",
-      "collation": "0",
+      "class": [
+        3124,
+      ],
+      "collation": [
+        0,
+      ],
       "comment": null,
       "id": 16399,
       "index_attributes": [
@@ -78,10 +90,14 @@ test('retrieve index', async () => {
       "is_replica_identity": false,
       "is_unique": true,
       "is_valid": true,
-      "key_attributes": "1",
+      "key_attributes": [
+        1,
+      ],
       "number_of_attributes": 1,
       "number_of_key_attributes": 1,
-      "options": "0",
+      "options": [
+        0,
+      ],
       "schema": "public",
       "table_id": 16393,
     }