database/mariadb-columnstore-engine
1
0
Fork 0
mirror of https://github.com/mariadb-corporation/mariadb-columnstore-engine.git synced 2025-07-30 19:23:07 +03:00
Code Activity

MCOL-641 Initial version of Math operations for wide decimal.

Browse Source
This commit is contained in:
Roman Nozdrin
2020-03-12 19:39:10 +00:00
parent 62d0c82d75
commit b09f3088ca
22 changed files with 1323 additions and 213 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
dbcon/execplan/arithmeticoperator.h
View File

@ -290,31 +290,19 @@ inline void ArithmeticOperator::execute(IDB_Decimal& result, IDB_Decimal op1, ID
case OP_ADD:
if (resultCscType.colWidth == 16)
{
result.s128Value = op1.s128Value + op2.s128Value;
break;
datatypes::Decimal::addition<decltype(result.s128Value),false>(
op1, op2, result);
}
if (result.scale == op1.scale && result.scale == op2.scale)
else if (resultCscType.colWidth == 8)
{
result.value = op1.value + op2.value;
break;
datatypes::Decimal::addition<decltype(result.value),false>(
op1, op2, result);
}
if (result.scale >= op1.scale)
op1.value *= IDB_pow[result.scale - op1.scale];
else
op1.value = (int64_t)(op1.value > 0 ?
(double)op1.value / IDB_pow[op1.scale - result.scale] + 0.5 :
(double)op1.value / IDB_pow[op1.scale - result.scale] - 0.5);
if (result.scale >= op2.scale)
op2.value *= IDB_pow[result.scale - op2.scale];
else
op2.value = (int64_t)(op2.value > 0 ?
(double)op2.value / IDB_pow[op2.scale - result.scale] + 0.5 :
(double)op2.value / IDB_pow[op2.scale - result.scale] - 0.5);
result.value = op1.value + op2.value;
{
throw logging::InvalidArgumentExcept(
"Unexpected result width");
}
break;
case OP_SUB:
@ -352,21 +340,33 @@ inline void ArithmeticOperator::execute(IDB_Decimal& result, IDB_Decimal op1, ID
break;
case OP_DIV:
if (op2.value == 0)
if (resultCscType.colWidth == 16)
{
isNull = true;
break;
if (op2.s128Value == 0)
{
isNull = true;
break;
}
datatypes::Decimal::division<decltype(result.s128Value),false>(
op1, op2, result);
}
else if (resultCscType.colWidth == 8)
{
if (op2.value == 0)
{
isNull = true;
break;
}
if (result.scale >= op1.scale - op2.scale)
result.value = (int64_t)(( (op1.value > 0 && op2.value > 0) || (op1.value < 0 && op2.value < 0) ?
(long double)op1.value / op2.value * IDB_pow[result.scale - (op1.scale - op2.scale)] + 0.5 :
(long double)op1.value / op2.value * IDB_pow[result.scale - (op1.scale - op2.scale)] - 0.5));
datatypes::Decimal::division<decltype(result.value),false>(
op1, op2, result);
}
else
result.value = (int64_t)(( (op1.value > 0 && op2.value > 0) || (op1.value < 0 && op2.value < 0) ?
(long double)op1.value / op2.value / IDB_pow[op1.scale - op2.scale - result.scale] + 0.5 :
(long double)op1.value / op2.value / IDB_pow[op1.scale - op2.scale - result.scale] - 0.5));
{
throw logging::InvalidArgumentExcept(
"Unexpected result width");
}
break;
default: