From a6ab9bd615f4d57a945d610564d87ab538cdda79 Mon Sep 17 00:00:00 2001
From: Akhmad Oripov <96055449+AestheticAkhmad@users.noreply.github.com>
Date: Tue, 8 Apr 2025 17:47:47 +0200
Subject: [PATCH] fix(funcexp): MCOL-5386 Bitwise aggregation functions do not
 work with wide decimals (internal error) (#3485)

---
 .../columnstore/bugfixes/mcol_5386.result     | 11 ++++++++++
 .../columnstore/bugfixes/mcol_5386.test       | 21 +++++++++++++++++++
 utils/rowgroup/rowgroup.h                     |  2 ++
 3 files changed, 34 insertions(+)
 create mode 100644 mysql-test/columnstore/bugfixes/mcol_5386.result
 create mode 100644 mysql-test/columnstore/bugfixes/mcol_5386.test

diff --git a/mysql-test/columnstore/bugfixes/mcol_5386.result b/mysql-test/columnstore/bugfixes/mcol_5386.result
new file mode 100644
index 000000000..be7da80c1
--- /dev/null
+++ b/mysql-test/columnstore/bugfixes/mcol_5386.result
@@ -0,0 +1,11 @@
+DROP DATABASE IF EXISTS mcol_5386;
+CREATE DATABASE mcol_5386;
+USE mcol_5386;
+DROP TABLE IF EXISTS t1;
+create table t1(c decimal(19)) engine=columnstore;
+insert into t1(c) values (-2);
+select bit_or(c), bit_xor(c), bit_and(c) from t1;
+bit_or(c)	bit_xor(c)	bit_and(c)
+18446744073709551614	18446744073709551614	18446744073709551614
+DROP TABLE IF EXISTS t1;
+DROP DATABASE mcol_5386;
diff --git a/mysql-test/columnstore/bugfixes/mcol_5386.test b/mysql-test/columnstore/bugfixes/mcol_5386.test
new file mode 100644
index 000000000..ab81c0177
--- /dev/null
+++ b/mysql-test/columnstore/bugfixes/mcol_5386.test
@@ -0,0 +1,21 @@
+-- source ../include/have_columnstore.inc
+--disable_warnings
+DROP DATABASE IF EXISTS mcol_5386;
+--enable_warnings
+CREATE DATABASE mcol_5386;
+USE mcol_5386;
+
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+create table t1(c decimal(19)) engine=columnstore;
+insert into t1(c) values (-2);
+select bit_or(c), bit_xor(c), bit_and(c) from t1;
+
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+
+--disable_warnings
+DROP DATABASE mcol_5386;
+--enable_warnings
diff --git a/utils/rowgroup/rowgroup.h b/utils/rowgroup/rowgroup.h
index 573d10611..7ecab0eca 100644
--- a/utils/rowgroup/rowgroup.h
+++ b/utils/rowgroup/rowgroup.h
@@ -866,6 +866,8 @@ inline int64_t Row::getIntField(uint32_t colIndex) const
 
     case 8: return *((int64_t*)&data[offsets[colIndex]]);
 
+    case 16: return *((int128_t*)&data[offsets[colIndex]]);
+
     default: idbassert(0); throw std::logic_error("Row::getIntField(): bad length.");
   }
 }