From 36126b885689de0a4959e9236f6f4ccea08c7712 Mon Sep 17 00:00:00 2001
From: xiezhaodong <xiezhaodong@bytedance.com>
Date: Mon, 14 Apr 2025 14:45:36 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=AF=E6=8C=81lru=E7=BC=93=E5=AD=98?=
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---
 prepare_stmt.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/prepare_stmt.go b/prepare_stmt.go
index 4426dfa1..aebad797 100644
--- a/prepare_stmt.go
+++ b/prepare_stmt.go
@@ -30,6 +30,9 @@ func NewPreparedStmtDB(connPool ConnPool, prepareStmtLruConfig *PrepareStmtLruCo
 		Stmts: func() StmtStore {
 			var stmts StmtStore
 			if prepareStmtLruConfig != nil && prepareStmtLruConfig.Open {
+				if prepareStmtLruConfig.Size <= 0 {
+					panic("LRU prepareStmtLruConfig.Size must > 0")
+				}
 				lru := &LruStmtStore{}
 				lru.NewLru(prepareStmtLruConfig.Size, prepareStmtLruConfig.TTL)
 				stmts = lru