[GLUTEN-6111][CH]Fix core problem of get_json_object #6113

What changes were proposed in this pull request? (Please fill in changes proposed in this fix) (Fixes: #6111) How was this patch tested? test by ut
apache · Jun 18, 2024 · 1ed8358 · 1ed8358
1 parent be0ada5
commit 1ed8358
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diff --git a/backends-clickhouse/src/test/resources/text-data/abnormal-json/data2.txt b/backends-clickhouse/src/test/resources/text-data/abnormal-json/data2.txt
diff --git a/cpp-ch/local-engine/Functions/SparkFunctionGetJsonObject.h b/cpp-ch/local-engine/Functions/SparkFunctionGetJsonObject.h
@@ -232,7 +232,7 @@ class FlattenJSONStringOnRequiredFunction : public DB::IFunction
                     tmp.push('{');
                 else if (ch == '}')
                 {
-                    if (tmp.top() == '{')
+                    if (!tmp.empty() && tmp.top() == '{')
                         tmp.pop();
                 }
                 if (tmp.empty())