[TD-359] change table uid from int64_t to uint64_t

src/inc/taosmsg.h

@@ -187,7 +187,7 @@ typedef struct SMsgHead {
 
 // Submit message for one table
 typedef struct SSubmitBlk {
-  int64_t uid;        // table unique id
+  uint64_t uid;        // table unique id
   int32_t  tid;        // table id
   int32_t  padding;    // TODO just for padding here
   int32_t  sversion;   // data schema version
@@ -329,7 +329,7 @@ typedef struct {
 typedef struct {
   int32_t  contLen;
   int32_t  vgId;
-  int64_t uid;
+  uint64_t uid;
   char    tableId[TSDB_TABLE_ID_LEN + 1];
 } SMDDropSTableMsg;
 
@@ -404,7 +404,7 @@ typedef struct SColumnInfo {
 } SColumnInfo;
 
 typedef struct STableIdInfo {
-  int64_t uid;
+  uint64_t uid;
   int32_t  tid;
   TSKEY    key;  // last accessed ts, for subscription
 } STableIdInfo;