Fix prev_offset for arraySymmetricDifference

petern48 · petern48 · commit b616378ea714 · 2025-04-14T07:49:08.000-07:00
diff --git a/src/Functions/array/arrayIntersect.cpp b/src/Functions/array/arrayIntersect.cpp
@@ -680,6 +680,12 @@ ColumnPtr FunctionArrayIntersect<Mode>::execute(const UnpackedArrays & arrays, M
                 null_map.push_back(1);
                 null_added = true;
             }
+            const auto & arg = arrays.args[0];
+            // const array has only one row
+            if (arg.is_const)
+                prev_off[0] = 0;
+            else
+                prev_off[0] = (*arg.offsets)[row];
         }
         else if constexpr (std::is_same_v<Mode, ArrayModeIntersect>)
         {

Original file line number	Diff line number	Diff line change
`@@ -680,6 +680,12 @@ ColumnPtr FunctionArrayIntersect<Mode>::execute(const UnpackedArrays & arrays, M`
`680`	`680`	`null_map.push_back(1);`
`681`	`681`	`null_added = true;`
`682`	`682`	`}`
	`683`	`+ const auto & arg = arrays.args[0];`
	`684`	`+ // const array has only one row`
	`685`	`+ if (arg.is_const)`
	`686`	`+ prev_off[0] = 0;`
	`687`	`+ else`
	`688`	`+ prev_off[0] = (*arg.offsets)[row];`
`683`	`689`	`}`
`684`	`690`	`else if constexpr (std::is_same_v<Mode, ArrayModeIntersect>)`
`685`	`691`	`{`