[BugFix] fix Array difference largeint (#40876)

Signed-off-by: Zhuhe Fang <[email protected]>
StarRocks · Feb 6, 2024 · f899b86 · f899b86
1 parent be5fda3
commit f899b86
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/be/src/exprs/vectorized/array_functions.tpp b/be/src/exprs/vectorized/array_functions.tpp
@@ -207,7 +207,8 @@ private:
                     dest_data_column->append_nulls(1);
                 } else {
                     if constexpr (pt_is_largeint<PT>) {
-                        dest_data_column->append_datum((CppType)0);
+                        dest_data_column->append_datum(
+                                (CppType)(items[i].get<CppType>() - items[i - 1].get<CppType>()));
                     } else if constexpr (pt_is_integer<PT> || pt_is_boolean<PT>) {
                         dest_data_column->append_datum(
                                 (int64_t)(items[i].get<CppType>() - items[i - 1].get<CppType>()));