From 69d5c53edd0959a6e57ed4af5391fa6cdb912485 Mon Sep 17 00:00:00 2001
From: Zanette Arrigo <arrigo.zanette@exorint.com>
Date: Wed, 12 Nov 2025 17:31:13 +0100
Subject: [PATCH] free buffer memory

---
 packages/duckdb-wasm/src/bindings/bindings_base.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/duckdb-wasm/src/bindings/bindings_base.ts b/packages/duckdb-wasm/src/bindings/bindings_base.ts
index b4b00188b..81bf2a8f9 100644
--- a/packages/duckdb-wasm/src/bindings/bindings_base.ts
+++ b/packages/duckdb-wasm/src/bindings/bindings_base.ts
@@ -402,6 +402,9 @@ export abstract class DuckDBBindingsBase implements DuckDBBindings {
             ['number', 'number', 'number', 'string'],
             [conn, bufferPtr, buffer.length, optJSON],
         );
+
+        this.mod._free(bufferPtr);
+
         if (s !== StatusCode.SUCCESS) {
             throw new Error(readString(this.mod, d, n));
         }