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implement drop table

This commit is contained in:
Hongze Cheng 2022-05-04 06:16:29 +00:00
parent ac0fb0237e
commit d5e578cf16
1 changed files with 49 additions and 6 deletions
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55
source/dnode/vnode/src/meta/metaTable.c
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@ -176,6 +176,9 @@ int metaDropTable(SMeta *pMeta, int64_t version, SVDropTbReq *pReq) {
int64_t tver;
SMetaEntry me = {0};
SCoder coder = {0};
int8_t type;
int64_t ctime;
tb_uid_t suid;
int c, ret;
// search & delete the name idx
@ -230,16 +233,56 @@ int metaDropTable(SMeta *pMeta, int64_t version, SVDropTbReq *pReq) {
return -1;
}
// tCoderInit(&coder, TD_LITTLE_ENDIAN, pData, nData, TD_DECODER);
// ret = metaDecodeEntry(&coder, &me);
// if (ret < 0) {
// ASSERT(0);
// return -1;
// }
// decode entry
void *pDataCopy = taosMemoryMalloc(nData); // remove the copy (todo)
memcpy(pDataCopy, pData, nData);
tCoderInit(&coder, TD_LITTLE_ENDIAN, pDataCopy, nData, TD_DECODER);
ret = metaDecodeEntry(&coder, &me);
if (ret < 0) {
ASSERT(0);
return -1;
}
type = me.type;
if (type == TSDB_CHILD_TABLE) {
ctime = me.ctbEntry.ctime;
suid = me.ctbEntry.suid;
} else if (type == TSDB_NORMAL_TABLE) {
ctime = me.ntbEntry.ctime;
suid = 0;
} else {
ASSERT(0);
}
taosMemoryFree(pDataCopy);
tCoderClear(&coder);
tdbDbcClose(pTbDbc);
if (type == TSDB_CHILD_TABLE) {
// remove the pCtbIdx
TDBC *pCtbIdxc = NULL;
tdbDbcOpen(pMeta->pCtbIdx, &pCtbIdxc, &pMeta->txn);
ret = tdbDbcMoveTo(pCtbIdxc, &(SCtbIdxKey){.suid = suid, .uid = uid}, sizeof(SCtbIdxKey), &c);
if (ret < 0 || c != 0) {
ASSERT(0);
return -1;
}
tdbDbcDelete(pCtbIdxc);
tdbDbcClose(pCtbIdxc);
// remove tags from pTagIdx (todo)
} else if (type == TSDB_NORMAL_TABLE) {
// remove from pSkmDb
} else {
ASSERT(0);
}
// remove from ttl (todo)
if (ctime > 0) {
}
return 0;
}