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TD-1224 update the uid generate algorithm

This commit is contained in:
Shengliang Guan 2020-09-04 09:36:54 +00:00
parent 083adfb4ae
commit 2932bc24bb
1 changed files with 11 additions and 5 deletions
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16
src/mnode/src/mnodeTable.c
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@ -1711,14 +1711,20 @@ static int32_t mnodeDoCreateChildTable(SMnodeMsg *pMsg, int32_t tid) {
mnodeDestroyChildTable(pTable);
return TSDB_CODE_MND_INVALID_TABLE_NAME;
}
pTable->suid = pMsg->pSTable->uid;
pTable->uid = (((uint64_t)pTable->vgId) << 40) + ((((uint64_t)pTable->sid) & ((1ul << 24) - 1ul)) << 16) +
(sdbGetVersion() & ((1ul << 16) - 1ul));
pTable->uid = (((uint64_t)pTable->vgId) << 48) + ((((uint64_t)pTable->sid) & ((1ul << 24) - 1ul)) << 24) +
((sdbGetVersion() & ((1ul << 16) - 1ul)) << 8) + (taosRand() & ((1ul << 8) - 1ul));
pTable->superTable = pMsg->pSTable;
} else {
pTable->uid = (((uint64_t)pTable->vgId) << 40) + ((((uint64_t)pTable->sid) & ((1ul << 24) - 1ul)) << 16) +
(sdbGetVersion() & ((1ul << 16) - 1ul));
if (pTable->info.type == TSDB_SUPER_TABLE) {
int64_t us = taosGetTimestampUs();
pTable->uid = (us << 24) + ((sdbGetVersion() & ((1ul << 16) - 1ul)) << 8) + (taosRand() & ((1ul << 8) - 1ul));
} else {
pTable->uid = (((uint64_t)pTable->vgId) << 48) + ((((uint64_t)pTable->sid) & ((1ul << 24) - 1ul)) << 24) +
((sdbGetVersion() & ((1ul << 16) - 1ul)) << 8) + (taosRand() & ((1ul << 8) - 1ul));
}
pTable->sversion = 0;
pTable->numOfColumns = htons(pCreate->numOfColumns);
pTable->sqlLen = htons(pCreate->sqlLen);