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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 c86bda4a1b
commit c859b1ff7f
1 changed files with 6 additions and 4 deletions
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10
src/util/src/tcompare.c
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@ -156,14 +156,16 @@ int32_t compareLenPrefixedWStr(const void *pLeft, const void *pRight) {
if (len1 != len2) {
return len1 > len2? 1:-1;
} else {
char pLeftTerm[len1 + 1];
char pRightTerm[len2 + 1];
memset(pLeftTerm, 0, len1 + 1);
memset(pRightTerm, 0, len2 + 1);
char *pLeftTerm = (char *)tcalloc(len1 + 1, sizeof(char));
char *pRightTerm = (char *)tcalloc(len1 + 1, sizeof(char));
memcpy(pLeftTerm, varDataVal(pLeft), len1);
memcpy(pRightTerm, varDataVal(pRight), len2);
int32_t ret = wcsncmp((void *)pLeftTerm, (void *)pRightTerm, len1/TSDB_NCHAR_SIZE);
tfree(pLeftTerm);
tfree(pRightTerm);
if (ret == 0) {
return 0;
} else {