Fix: Resolve usage errors

src/server/sync.dto.ts

@@ -1,7 +1,15 @@
 import { z } from "zod/v4";
 
 export const SyncRequest = z.object({
-  db: z.string().startsWith("postgres://"),
+  // We shouldn't be doing separate validations on both the front end and here? Should probably consolidate
+  db: z
+    .string()
+    .refine(
+      (val) => val.startsWith("postgres://") || val.startsWith("postgresql://"),
+      {
+        message: "Must start with 'postgres://' or 'postgresql://'",
+      }
+    ),
   seed: z.coerce.number().min(0).max(1).default(0),
   schema: z.coerce.string().default("public"),
   requiredRows: z.coerce.number().positive().default(2),

src/sync/pg-connector.ts

@@ -292,7 +292,7 @@ export class PostgresConnector implements DatabaseConnector<PostgresTuple> {
         ",\n  "
       )} from (select * from ${doubleQuote(
         table
-      )} where ctid = any($1::tid[]))`;
+      )} where ctid = any($1::tid[])) as samples`;
       const serialized = await this.sql.unsafe(query, [allCtids]);
 
       const estimate = this.tupleEstimates.get(table) ?? "?";