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[TD-6054]<fix>: Filtered by tag with nchar value not as expected

This commit is contained in:
Ganlin Zhao 2021-08-15 23:01:57 +08:00
parent fc8bc32120
commit c86bda4a1b
1 changed files with 9 additions and 2 deletions
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11
src/util/src/tcompare.c
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@ -152,11 +152,18 @@ int32_t compareLenPrefixedStr(const void *pLeft, const void *pRight) {
int32_t compareLenPrefixedWStr(const void *pLeft, const void *pRight) {
int32_t len1 = varDataLen(pLeft);
int32_t len2 = varDataLen(pRight);
if (len1 != len2) {
return len1 > len2? 1:-1;
} else {
int32_t ret = wcsncmp(varDataVal(pLeft), varDataVal(pRight), len1/TSDB_NCHAR_SIZE);
char pLeftTerm[len1 + 1];
char pRightTerm[len2 + 1];
memset(pLeftTerm, 0, len1 + 1);
memset(pRightTerm, 0, len2 + 1);
memcpy(pLeftTerm, varDataVal(pLeft), len1);
memcpy(pRightTerm, varDataVal(pRight), len2);
int32_t ret = wcsncmp((void *)pLeftTerm, (void *)pRightTerm, len1/TSDB_NCHAR_SIZE);
if (ret == 0) {
return 0;
} else {