fix(query):fix limit/offset bug.

include/common/tcommon.h

@@ -153,11 +153,10 @@ typedef struct SQueryTableDataCond {
   int32_t      order;  // desc|asc order to iterate the data block
   int32_t      numOfCols;
   SColumnInfo* colList;
-  int32_t      type;  // data block load type:
-                      //  int32_t      numOfTWindows;
-  STimeWindow twindows;
-  int64_t     startVersion;
-  int64_t     endVersion;
+  int32_t      type;   // data block load type:
+  STimeWindow  twindows;
+  int64_t      startVersion;
+  int64_t      endVersion;
 } SQueryTableDataCond;
 
 int32_t tEncodeDataBlock(void** buf, const SSDataBlock* pBlock);

source/dnode/vnode/inc/vnode.h

@@ -117,9 +117,8 @@ int32_t     metaTbCursorNext(SMTbCursor *pTbCur);
 // typedef struct STsdb STsdb;
 typedef struct STsdbReader STsdbReader;
 
-#define BLOCK_LOAD_OFFSET_ORDER 1
-#define BLOCK_LOAD_TABLESEQ_ORDER 2
-#define BLOCK_LOAD_EXTERN_ORDER 3
+#define TIMEWINDOW_RANGE_CONTAINED 1
+#define TIMEWINDOW_RANGE_EXTERNAL  2
 
 #define LASTROW_RETRIEVE_TYPE_ALL 0x1
 #define LASTROW_RETRIEVE_TYPE_SINGLE 0x2