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A cleanup for MCOL-4064 Make JOIN collation aware

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A non-JOIN condition like `WHERE c1=c2` (with c1 and c2 being columns of the
same table) was not collation-aware yet after the main patches for MCOL-4064.

Additionally fixing StrFilterCmd::compare*() to address this.
This commit is contained in:
Alexander Barkov
2020-12-08 13:10:51 +04:00
parent 23df62e337
commit b08d719593
4 changed files with 112 additions and 126 deletions
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3
utils/common/collation.h
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@ -117,6 +117,9 @@ protected:
const struct charset_info_st * mCharset;
public:
Charset(CHARSET_INFO & cs) :mCharset(&cs) { }
Charset(CHARSET_INFO *cs)
:mCharset(cs ? cs : &my_charset_bin)
{ }
Charset(uint32_t charsetNumber);
CHARSET_INFO & getCharset() const { return *mCharset; }
uint32_t hash(const char *data, uint64_t len) const