From 25287f643628260ad560ae997e7ce2ddabe88b1e Mon Sep 17 00:00:00 2001
From: Bee Ing <beeing@users.noreply.github.com>
Date: Wed, 5 Nov 2025 09:35:15 +0800
Subject: [PATCH] fix: nested COALESCE in deparser

---
 packages/deparser/src/deparser.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/deparser/src/deparser.ts b/packages/deparser/src/deparser.ts
index 16d3e884..44c75c31 100644
--- a/packages/deparser/src/deparser.ts
+++ b/packages/deparser/src/deparser.ts
@@ -2258,7 +2258,7 @@ export class Deparser implements DeparserVisitor {
         if (isSimpleArgument && (arg.includes('(') || arg.startsWith('-'))) {
         } else {
           const cleanTypeName = typeName.replace('pg_catalog.', '');
-          return `${arg}::${cleanTypeName}`;
+          return this.context.parens(`${arg}::${cleanTypeName}`);
         }
       }
     }