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MCOL-3536 collation

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This commit is contained in:
David Hall
2020-05-26 12:42:11 -05:00
parent 11ba12f6ea
commit 06e50e0926
47 changed files with 516 additions and 535 deletions
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65
utils/funcexp/func_instr.cpp
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@ -20,6 +20,10 @@
*
*
****************************************************************************/
#include <mariadb.h>
#undef set_bits // mariadb.h defines set_bits, which is incompatible with boost
#include <my_sys.h>
#include <m_ctype.h>
#include <cstdlib>
#include <string>
@ -42,37 +46,50 @@ CalpontSystemCatalog::ColType Func_instr::operationType( FunctionParm& fp, Calpo
return ct;
}
size_t Func_instr::in_str(const string& str, const string& substr, size_t start)
{
// convert both inputs to wide character strings
std::wstring wcstr = utf8::utf8_to_wstring(str);
std::wstring wcsubstr = utf8::utf8_to_wstring(substr);
if ((str.length() && !wcstr.length()) ||
(substr.length() && !wcsubstr.length()))
// this means one or both of the strings had conversion errors to wide character
return 0;
size_t pos = wcstr.find(wcsubstr, start - 1);
return (pos != string::npos ? pos + 1 : 0);
}
int64_t Func_instr::getIntVal(rowgroup::Row& row,
FunctionParm& parm,
bool& isNull,
CalpontSystemCatalog::ColType&)
CalpontSystemCatalog::ColType& colType)
{
uint64_t start = 1;
if (parm.size() == 3)
start = parm[2]->data()->getIntVal(row, isNull);
if (isNull || start == 0)
int64_t start = 0;
int64_t start0= 0;
my_match_t match;
const std::string& str = parm[0]->data()->getStrVal(row, isNull);
if (isNull)
return 0;
const char* s1 = str.c_str();
uint32_t l1 = (uint32_t)str.length();
const std::string& substr =parm[1]->data()->getStrVal(row, isNull);
if (isNull)
return 0;
//Bug 5110 : to support utf8 char type, we have to convert and search
return in_str(parm[0]->data()->getStrVal(row, isNull), parm[1]->data()->getStrVal(row, isNull), start);
const char* s2 = substr.c_str();
uint32_t l2 = (uint32_t)substr.length();
if (l2 < 1)
return start + 1;
CHARSET_INFO* cs = colType.getCharset();
if (parm.size() == 3)
{
start0 = start = parm[2]->data()->getIntVal(row, isNull) - 1;
if ((start < 0) || (start > l1))
return 0;
start = (int64_t)cs->charpos(s1, s1+l1, start); // adjust start for multi-byte
if (start + l2 > l1) // Substring is longer than str at pos.
return 0;
}
if (!cs->instr(s1+start, l1-start,
s2, l2,
&match, 1))
return 0;
return (int64_t)match.mb_len + start0 + 1;
}