fix: index failed to filter float/double data

source/libs/index/src/indexTfile.c

@@ -473,16 +473,16 @@ static int32_t tfSearchCompareFunc_JSON(void* reader, SIndexTerm* tem, SIdxTempR
 
     int32_t sz = 0;
     char*   ch = (char*)fstSliceData(s, &sz);
-    char*   tmp = taosMemoryCalloc(1, sz + 1);
-    memcpy(tmp, ch, sz);
+    // char*   tmp = taosMemoryCalloc(1, sz + 1);
+    // memcpy(tmp, ch, sz);
 
-    if (0 != strncmp(tmp, p, skip)) {
+    if (0 != strncmp(ch, p, skip)) {
       swsResultDestroy(rt);
-      taosMemoryFree(tmp);
+      // taosMemoryFree(tmp);
       break;
     }
 
-    TExeCond cond = cmpFn(tmp + skip, tem->colVal, INDEX_TYPE_GET_TYPE(tem->colType));
+    TExeCond cond = cmpFn(ch + skip, tem->colVal, INDEX_TYPE_GET_TYPE(tem->colType));
 
     if (MATCH == cond) {
       tfileReaderLoadTableIds((TFileReader*)reader, rt->out.out, tr->total);
@@ -491,7 +491,7 @@ static int32_t tfSearchCompareFunc_JSON(void* reader, SIndexTerm* tem, SIdxTempR
       swsResultDestroy(rt);
       break;
     }
-    taosMemoryFree(tmp);
+    // taosMemoryFree(tmp);
     swsResultDestroy(rt);
   }
   streamWithStateDestroy(st);