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fix collation free compare with rowkey helper

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This commit is contained in:
obdev
2021-07-11 21:15:12 +08:00
committed by wangzelin.wzl
parent 025f70b876
commit 4c04455403
1 changed files with 6 additions and 1 deletions
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5
src/storage/ob_sstable_rowkey_helper.cpp
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@ -120,7 +120,12 @@ int ObRowkeyObjComparer::sstable_oracle_collation_free_cmp_func(
// int32_t is always capable of stroing the max lenth of varchar or char // int32_t is always capable of stroing the max lenth of varchar or char
for (int32_t i = 0; i < left_len; ++i) { for (int32_t i = 0; i < left_len; ++i) {
if (*(uptr + i) != ' ') { if (*(uptr + i) != ' ') {
// mysql特殊行为：a\1 < a，但ab > a
if (*(uptr + i) < ' ') {
cmp = lhs_len > cmp_len ? ObObjCmpFuncs::CR_LT : ObObjCmpFuncs::CR_GT;
} else {
cmp = lhs_len > cmp_len ? ObObjCmpFuncs::CR_GT : ObObjCmpFuncs::CR_LT; cmp = lhs_len > cmp_len ? ObObjCmpFuncs::CR_GT : ObObjCmpFuncs::CR_LT;
}
break; break;
} }
} }