From 23c58dca16f38b7ce33235df2e2fe132223bedd9 Mon Sep 17 00:00:00 2001
From: guojn1 <gjn16637211661@163.com>
Date: Thu, 30 Jul 2026 10:03:27 +0800
Subject: [PATCH] [fix][runtime] Precision loss when converting long string to
 long type

---
 .../dingodb/expr/runtime/op/cast/LongCastCheckOpFactory.java   | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/runtime/src/main/java/io/dingodb/expr/runtime/op/cast/LongCastCheckOpFactory.java b/runtime/src/main/java/io/dingodb/expr/runtime/op/cast/LongCastCheckOpFactory.java
index a2460063..d5f949b4 100644
--- a/runtime/src/main/java/io/dingodb/expr/runtime/op/cast/LongCastCheckOpFactory.java
+++ b/runtime/src/main/java/io/dingodb/expr/runtime/op/cast/LongCastCheckOpFactory.java
@@ -189,6 +189,9 @@ protected Long evalNonNullValue(@NonNull Object value, ExprConfig config) {
                 if (config.getExprContext() != ExprContext.CALC_VALUE) {
                     return longCastWithStringCompat((String)value);
                 }
+                if (((String) value).length() > 15) {
+                    return longCastWithStringCompat((String)value);
+                }
                 return longCast(Double.parseDouble((String) value));
             } else if (value instanceof Boolean) {
                 return longCast((Boolean) value);