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MCOL-4361 Replace pow(10.0, (double)scale) expressions with a static dictionary lookup.

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This commit is contained in:
Alexander Barkov
2021-04-09 12:14:41 +04:00
parent fd720bfd7d
commit 362bfcd15e
13 changed files with 153 additions and 132 deletions
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13
dbcon/execplan/simplecolumn_decimal.h
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@ -166,7 +166,9 @@ inline int64_t SimpleColumn_Decimal<len>:: getIntVal(rowgroup::Row& row, bool& i
if (row.equals<len>(fNullVal, fInputIndex))
isNull = true;
return (int64_t)(row.getIntField<len>(fInputIndex) / pow((double)10, fResultType.scale));
// TODO: fix double division to integer division
return (int64_t)(row.getIntField<len>(fInputIndex) /
datatypes::scaleDivisor<double>(fResultType.scale));
}
template<int len>
@ -175,7 +177,8 @@ inline float SimpleColumn_Decimal<len>::getFloatVal(rowgroup::Row& row, bool& is
if (row.equals<len>(fNullVal, fInputIndex))
isNull = true;
return (row.getIntField<len>(fInputIndex) / pow((double)10, fResultType.scale));
return (row.getIntField<len>(fInputIndex) /
datatypes::scaleDivisor<double>(fResultType.scale));
}
template<int len>
@ -184,7 +187,8 @@ inline double SimpleColumn_Decimal<len>::getDoubleVal(rowgroup::Row& row, bool&
if (row.equals<len>(fNullVal, fInputIndex))
isNull = true;
return (row.getIntField<len>(fInputIndex) / pow((double)10, fResultType.scale));
return (row.getIntField<len>(fInputIndex) /
datatypes::scaleDivisor<double>(fResultType.scale));
}
template<int len>
@ -193,7 +197,8 @@ inline long double SimpleColumn_Decimal<len>::getLongDoubleVal(rowgroup::Row& ro
if (row.equals<len>(fNullVal, fInputIndex))
isNull = true;
return (row.getIntField<len>(fInputIndex) / pow((double)10, fResultType.scale));
return (row.getIntField<len>(fInputIndex) /
datatypes::scaleDivisor<long double>(fResultType.scale));
}
template<int len>