fix compile problem

include/common/tdataformat.h

@@ -98,7 +98,7 @@ struct STSRow2 {
   uint8_t        flags;
   int32_t        sver;
   uint32_t       nData;
-  uint8_t *pData;
+  const uint8_t *pData;
 };
 
 struct STSRowBuilder {
@@ -119,7 +119,7 @@ typedef enum { COL_VAL = 0, COL_NONE = 1, COL_NULL = 2 } EColValT;
 struct SColVal {
   EColValT       type;
   uint32_t       nData;
-  uint8_t *pData;
+  const uint8_t *pData;
 };
 
 #if 1  //====================================

source/common/src/tdataformat.c

@@ -97,7 +97,7 @@ static FORCE_INLINE int kvRowCmprFn(const void *p1, const void *p2) {
 
 int32_t tTSRowGet(const STSRow2 *pRow, STSchema *pTSchema, int32_t iCol, SColVal *pColVal) {
   uint32_t       n;
-  uint8_t  *p;
+  const uint8_t *p;
   uint8_t        v;
   int32_t        bidx = iCol - 1;
   STColumn      *pTColumn = &pTSchema->columns[iCol];
@@ -132,8 +132,8 @@ int32_t tTSRowGet(const STSRow2 *pRow, STSchema *pTSchema, int32_t iCol, SColVal
     }
   } else {
     // get bitmap
-    switch (pRow->flags & 0xf) {
     p = pRow->pData;
+    switch (pRow->flags & 0xf) {
       case TSROW_HAS_NULL | TSROW_HAS_NONE:
         v = GET_BIT1(p, bidx);
         if (v == 0) {
@@ -181,8 +181,7 @@ int32_t tTSRowGet(const STSRow2 *pRow, STSchema *pTSchema, int32_t iCol, SColVal
     // get real value
     p = p + pTColumn->offset;
     if (IS_VAR_DATA_TYPE(pTColumn->type)) {
-      p = pTSchema->flen + *(int32_t *)p;
-      tGetBinary(p, &p, &n);
+      tGetBinary(p + pTSchema->flen + *(int32_t *)p, &p, &n);
     } else {
       n = pTColumn->bytes;
     }