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MCOL-3536 use Locale for compare of strings in ORDER BY

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This commit is contained in:
David Hall
2019-10-07 09:21:09 -05:00
parent 1f475340dc
commit b747e9ab92
4 changed files with 20 additions and 11 deletions
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1
dbcon/joblist/limitedorderby.h
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@@ -58,7 +58,6 @@ protected:
uint64_t fCount;
};
}
#endif // LIMITED_ORDER_BY_H

2
utils/funcexp/utils_utf8.h
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@@ -53,7 +53,7 @@ extern std::locale loc;
// Is there a way to construct a global reference to a facet?
// const std::collate<char>& coll = std::use_facet<std::collate<char> >(loc);
//Infinidb version of strlocale BUG 5362
//Columnstore version of strlocale BUG 5362
//set System Locale "C" by default
//return the system Locale currently set in from Columnstore.xml
inline

12
utils/rowgroup/rowgroup.h
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@@ -375,6 +375,7 @@ public:
inline std::string getStringField(uint32_t colIndex) const;
inline const uint8_t* getStringPointer(uint32_t colIndex) const;
inline uint32_t getStringLength(uint32_t colIndex) const;
inline const char* getCharPtrField(uint32_t colIndex, int& len) const;
void setStringField(const std::string& val, uint32_t colIndex);
inline void setStringField(const uint8_t*, uint32_t len, uint32_t colIndex);
@@ -774,6 +775,17 @@ inline std::string Row::getStringField(uint32_t colIndex) const
strnlen((char*) &data[offsets[colIndex]], getColumnWidth(colIndex)));
}
// Return a char* to the string field with len
inline const char* Row::getCharPtrField(uint32_t colIndex, int& len) const
{
len = getStringLength(colIndex);
if (inStringTable(colIndex))
{
return (const char*)strings->getPointer(*((uint64_t*) &data[offsets[colIndex]]));
}
return (char*)&data[offsets[colIndex]];
}
inline std::string Row::getVarBinaryStringField(uint32_t colIndex) const
{
if (inStringTable(colIndex))

12
utils/windowfunction/idborderby.cpp
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@@ -130,13 +130,11 @@ int StringCompare::operator()(IdbCompare* l, Row::Pointer r1, Row::Pointer r2)
}
else
{
string v1 = l->row1().getStringField(fSpec.fIndex);
string v2 = l->row2().getStringField(fSpec.fIndex);
if (v1 > v2)
ret = fSpec.fAsc;
else if (v1 < v2)
ret = -fSpec.fAsc;
int len1, len2;
const char* s1 = l->row1().getCharPtrField(fSpec.fIndex, len1);
const char* s2 = l->row2().getCharPtrField(fSpec.fIndex, len2);
const std::collate<char>& coll = std::use_facet<std::collate<char> >(loc);
ret = fSpec.fAsc * coll.compare(s1, s1+len1, s2, s2+len2);
}
return ret;