fix(os): win compile error

contrib/CMakeLists.txt

@@ -226,10 +226,10 @@ endif(${BUILD_WITH_NURAFT})
 if(${BUILD_PTHREAD})
     set(CMAKE_BUILD_TYPE release)
     add_definitions(-DPTW32_STATIC_LIB)
-    add_subdirectory(pthread)
+    add_subdirectory(pthread EXCLUDE_FROM_ALL)
     set_target_properties(libpthreadVC3 PROPERTIES OUTPUT_NAME pthread)
-    add_library(pthread STATIC IMPORTED GLOBAL)
-    SET_PROPERTY(TARGET pthread PROPERTY IMPORTED_LOCATION ${LIBRARY_OUTPUT_PATH}/pthread.lib)
+    add_library(pthread INTERFACE)
+    target_link_libraries(pthread INTERFACE libpthreadVC3)
 endif()
 
 # iconv

source/libs/index/src/indexComm.c

@@ -361,7 +361,7 @@ int32_t indexConvertDataToStr(void* src, int8_t type, void** dst) {
       tlen = taosEncodeBinary(NULL, varDataVal(src), varDataLen(src));
       *dst = taosMemoryCalloc(1, tlen + 1);
       tlen = taosEncodeBinary(dst, varDataVal(src), varDataLen(src));
-      *dst = *dst - tlen;
+      *dst = (char*) * dst - tlen;
       break;
     }
     case TSDB_DATA_TYPE_VARCHAR: {  // TSDB_DATA_TYPE_BINARY