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MDEV-7661 Unexpected result for: CAST(0xHHHH AS CHAR CHARACTER SET xxx)

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for incorrect byte sequences
This commit is contained in:
Alexander Barkov
2015-03-18 17:10:48 +04:00
parent a471b7098f
commit e28a241907
31 changed files with 1806 additions and 122 deletions
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12
sql/sql_string.h
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@ -200,6 +200,7 @@ public:
inline bool is_empty() const { return (str_length == 0); }
inline void mark_as_const() { Alloced_length= 0;}
inline const char *ptr() const { return Ptr; }
inline const char *end() const { return Ptr + str_length; }
inline char *c_ptr()
{
DBUG_ASSERT(!alloced || !Ptr || !Alloced_length ||
@ -423,6 +424,17 @@ public:
{
return copy(str->ptr(), str->length(), str->charset(), tocs, errors);
}
bool copy(CHARSET_INFO *tocs,
CHARSET_INFO *fromcs, const char *src, uint32 src_length,
uint32 nchars, String_copier *copier)
{
if (alloc(tocs->mbmaxlen * src_length))
return true;
str_length= copier->well_formed_copy(tocs, Ptr, Alloced_length,
fromcs, src, src_length, nchars);
str_charset= tocs;
return false;
}
void move(String &s)
{
free();