remove the compiler warnings

src/client/src/tscSchemaUtil.c

@@ -83,6 +83,13 @@ struct SSchema* tsGetColumnSchema(SMeterMeta* pMeta, int32_t startCol) {
   return (SSchema*)(((char*)pMeta + sizeof(SMeterMeta)) + startCol * sizeof(SSchema));
 }
 
+struct SSchema tsGetTbnameColumnSchema() {
+  struct SSchema s = {.colId = TSDB_TBNAME_COLUMN_INDEX, .type = TSDB_DATA_TYPE_BINARY, .bytes = TSDB_METER_NAME_LEN};
+  strcpy(s.name, TSQL_TBNAME_L);
+  
+  return s;
+}
+
 /**
  * the MeterMeta data format in memory is as follows:
  *
@@ -123,7 +130,7 @@ bool tsMeterMetaIdentical(SMeterMeta* p1, SMeterMeta* p2) {
   return memcmp(p1, p2, size) == 0;
 }
 
-//todo refactor
+// todo refactor
 static FORCE_INLINE char* skipSegments(char* input, char delimiter, int32_t num) {
   for (int32_t i = 0; i < num; ++i) {
     while (*input != 0 && *input++ != delimiter) {

src/inc/tschemautil.h

@@ -47,6 +47,7 @@ struct SSchema *tsGetSchema(SMeterMeta *pMeta);
 struct SSchema *tsGetTagSchema(SMeterMeta *pMeta);
 
 struct SSchema *tsGetColumnSchema(SMeterMeta *pMeta, int32_t startCol);
+struct SSchema tsGetTbnameColumnSchema();
 
 char *tsGetTagsValue(SMeterMeta *pMeta);
 

src/inc/tsqlfunction.h

@@ -227,8 +227,6 @@ typedef struct SPatternCompareInfo {
 int32_t getResultDataInfo(int32_t dataType, int32_t dataBytes, int32_t functionId, int32_t param, int16_t *type,
                           int16_t *len, int16_t *interResBytes, int16_t extLength, bool isSuperTable);
 
-SResultInfo *getResultSupportInfo(SQLFunctionCtx *pCtx);
-
 int patternMatch(const char *zPattern, const char *zString, size_t size, const SPatternCompareInfo *pInfo);
 
 int WCSPatternMatch(const wchar_t *zPattern, const wchar_t *zString, size_t size, const SPatternCompareInfo *pInfo);

src/inc/ttypes.h

@@ -50,7 +50,7 @@ bool isNull(const char *val, int32_t type);
 void setNull(char *val, int32_t type, int32_t bytes);
 void setNullN(char *val, int32_t type, int32_t bytes, int32_t numOfElems);
 
-void assignVal(char *val, char *src, int32_t len, int32_t type);
+void assignVal(char *val, const char *src, int32_t len, int32_t type);
 void tsDataSwap(void *pLeft, void *pRight, int32_t type, int32_t size);
 
 // variant, each number/string/field_id has a corresponding struct during parsing sql

src/util/src/ttypes.c

@@ -970,7 +970,7 @@ void setNullN(char *val, int32_t type, int32_t bytes, int32_t numOfElems) {
   }
 }
 
-void assignVal(char *val, char *src, int32_t len, int32_t type) {
+void assignVal(char *val, const char *src, int32_t len, int32_t type) {
   switch (type) {
     case TSDB_DATA_TYPE_INT: {
       *((int32_t *)val) = GET_INT32_VAL(src);