[TS-821]<fix>: reverted some changes

src/query/src/qFilterfunc.c

@@ -184,16 +184,7 @@ bool likeOperator(SColumnFilterElem *pFilter, const char *minval, const char *ma
   } else if (type == TSDB_DATA_TYPE_NCHAR) {
     SPatternCompareInfo info = PATTERN_COMPARE_INFO_INITIALIZER;
     size_t size =  (size_t)(pFilter->filterInfo.len/TSDB_NCHAR_SIZE);
-    void *pz = calloc(size + 1, TSDB_NCHAR_SIZE);
-    if (pz == NULL) {
-      return false;
-    }
-
-    memcpy(pz, (void *) pFilter->filterInfo.pz, size * TSDB_NCHAR_SIZE);
-    int32_t ret = WCSPatternMatch((uint32_t *) pz, size, (uint32_t *) varDataVal(minval), varDataLen(minval)/TSDB_NCHAR_SIZE, &info);
-    free(pz);
-
-    return ret == TSDB_PATTERN_MATCH;
+    return WCSPatternMatch((uint32_t *) pFilter->filterInfo.pz, size, (uint32_t *) varDataVal(minval), varDataLen(minval)/TSDB_NCHAR_SIZE, &info) == TSDB_PATTERN_MATCH;
   } else {
     return false;
   }

src/util/inc/tcompare.h

@@ -44,7 +44,7 @@ typedef struct SPatternCompareInfo {
 
 int patternMatch(const char *pattern, const char *str, size_t size, const SPatternCompareInfo *pInfo);
 
-int WCSPatternMatch(uint32_t *pattern, size_t paSize, uint32_t *str, size_t size, const SPatternCompareInfo *pInfo);
+int WCSPatternMatch(const uint32_t *pattern, size_t paSize, const uint32_t *str, size_t size, const SPatternCompareInfo *pInfo);
 
 int32_t doCompare(const char* a, const char* b, int32_t type, size_t size);
 

src/util/src/tcompare.c

@@ -386,7 +386,7 @@ taosWcscspn (const uint32_t *wcs, const uint32_t *reject)
   return count;
 }
 
-int WCSPatternMatch(uint32_t *patterStr, size_t paSize, uint32_t *str, size_t size, const SPatternCompareInfo *pInfo) {
+int WCSPatternMatch(const uint32_t *patterStr, size_t paSize, const uint32_t *str, size_t size, const SPatternCompareInfo *pInfo) {
   wchar_t c, c1;
   wchar_t matchOne = L'_';  // "_"
   wchar_t matchAll = L'%';  // "%"