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new 8de09cb [Bug-fix] Decimal Divide, Mod Zero Result Should be NULL.
(#6051)
8de09cb is described below
commit 8de09cbd2125764a44d6513ebabb2c6fcf8d899a
Author: HappenLee <[email protected]>
AuthorDate: Fri Jul 16 21:43:06 2021 -0500
[Bug-fix] Decimal Divide, Mod Zero Result Should be NULL. (#6051)
---
be/src/exprs/decimalv2_operators.cpp | 24 ++++++++++++++++++------
be/src/runtime/decimalv2_value.cpp | 4 ++--
2 files changed, 20 insertions(+), 8 deletions(-)
diff --git a/be/src/exprs/decimalv2_operators.cpp
b/be/src/exprs/decimalv2_operators.cpp
index 32f54d9..ccc41b9 100644
--- a/be/src/exprs/decimalv2_operators.cpp
+++ b/be/src/exprs/decimalv2_operators.cpp
@@ -176,12 +176,24 @@ DateTimeVal
DecimalV2Operators::cast_to_date_val(FunctionContext* context,
return result;
\
}
-#define DECIMAL_ARITHMETIC_OPS() \
- DECIMAL_ARITHMETIC_OP(add, +); \
- DECIMAL_ARITHMETIC_OP(subtract, -); \
- DECIMAL_ARITHMETIC_OP(multiply, *); \
- DECIMAL_ARITHMETIC_OP(divide, /); \
- DECIMAL_ARITHMETIC_OP(mod, %);
+#define DECIMAL_ARITHMETIC_OP_DIVIDE(FN_NAME, OP)
\
+DecimalV2Val DecimalV2Operators::FN_NAME##_decimalv2_val_decimalv2_val(
\
+ FunctionContext* context, const DecimalV2Val& v1, const DecimalV2Val&
v2) { \
+ if (v1.is_null || v2.is_null || v2.value() == 0) return
DecimalV2Val::null(); \
+ DecimalV2Value iv1 = DecimalV2Value::from_decimal_val(v1);
\
+ DecimalV2Value iv2 = DecimalV2Value::from_decimal_val(v2);
\
+ DecimalV2Value ir = iv1 OP iv2;
\
+ DecimalV2Val result;
\
+ ir.to_decimal_val(&result);
\
+ return result;
\
+}
+
+#define DECIMAL_ARITHMETIC_OPS() \
+ DECIMAL_ARITHMETIC_OP(add, +); \
+ DECIMAL_ARITHMETIC_OP(subtract, -); \
+ DECIMAL_ARITHMETIC_OP(multiply, *); \
+ DECIMAL_ARITHMETIC_OP_DIVIDE(divide, /); \
+ DECIMAL_ARITHMETIC_OP_DIVIDE(mod, %);
DECIMAL_ARITHMETIC_OPS();
diff --git a/be/src/runtime/decimalv2_value.cpp
b/be/src/runtime/decimalv2_value.cpp
index 437dd8f..4a12398 100644
--- a/be/src/runtime/decimalv2_value.cpp
+++ b/be/src/runtime/decimalv2_value.cpp
@@ -192,7 +192,7 @@ DecimalV2Value operator/(const DecimalV2Value& v1, const
DecimalV2Value& v2) {
int128_t x = v1.value();
int128_t y = v2.value();
- //todo: return 0 for divide zero
+ DCHECK(y != 0);
if (x == 0 || y == 0) return DecimalV2Value(0);
bool is_positive = (x > 0 && y > 0) || (x < 0 && y < 0);
do_div(abs(x), abs(y), &result);
@@ -207,7 +207,7 @@ DecimalV2Value operator%(const DecimalV2Value& v1, const
DecimalV2Value& v2) {
int128_t x = v1.value();
int128_t y = v2.value();
- //todo: return 0 for divide zero
+ DCHECK(y != 0);
if (x == 0 || y == 0) return DecimalV2Value(0);
do_mod(x, y, &result);
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