diff --git a/source/dnode/vnode/src/meta/metaQuery.c b/source/dnode/vnode/src/meta/metaQuery.c index 184b640bdd..605e804933 100644 --- a/source/dnode/vnode/src/meta/metaQuery.c +++ b/source/dnode/vnode/src/meta/metaQuery.c @@ -155,44 +155,52 @@ int metaTbCursorNext(SMTbCursor *pTbCur) { } SSchemaWrapper *metaGetTableSchema(SMeta *pMeta, tb_uid_t uid, int32_t sver, bool isinline) { - void *pKey = NULL; - void *pVal = NULL; - int kLen = 0; - int vLen = 0; - int ret; - SSkmDbKey skmDbKey; - SSchemaWrapper *pSW = NULL; - SSchema *pSchema = NULL; - void *pBuf; - SDecoder coder = {0}; + void *pData = NULL; + int nData = 0; + int64_t version; + SSchemaWrapper schema = {0}; + SSchemaWrapper *pSchema = NULL; + SDecoder dc = {0}; - // fetch - skmDbKey.uid = uid; - skmDbKey.sver = sver; - pKey = &skmDbKey; - kLen = sizeof(skmDbKey); metaRLock(pMeta); - ret = tdbTbGet(pMeta->pSkmDb, pKey, kLen, &pVal, &vLen); - metaULock(pMeta); - if (ret < 0) { - return NULL; + if (sver < 0) { + if (tdbTbGet(pMeta->pUidIdx, &uid, sizeof(uid), &pData, &nData) < 0) { + goto _err; + } + + version = *(int64_t *)pData; + + tdbTbGet(pMeta->pTbDb, &(STbDbKey){.uid = uid, .version = version}, sizeof(STbDbKey), &pData, &nData); + + SMetaEntry me = {0}; + tDecoderInit(&dc, pData, nData); + metaDecodeEntry(&dc, &me); + if (me.type == TSDB_SUPER_TABLE) { + pSchema = tCloneSSchemaWrapper(&me.stbEntry.schemaRow); + } else if (me.type == TSDB_NORMAL_TABLE) { + } else { + ASSERT(0); + } + tDecoderClear(&dc); + } else { + if (tdbTbGet(pMeta->pSkmDb, &(SSkmDbKey){.uid = uid, .sver = sver}, sizeof(SSkmDbKey), &pData, &nData) < 0) { + goto _err; + } + + tDecoderInit(&dc, pData, nData); + tDecodeSSchemaWrapper(&dc, &schema); + pSchema = tCloneSSchemaWrapper(&schema); + tDecoderClear(&dc); } - // decode - pBuf = pVal; - pSW = taosMemoryMalloc(sizeof(SSchemaWrapper)); + metaULock(pMeta); + tdbFree(pData); + return pSchema; - tDecoderInit(&coder, pVal, vLen); - tDecodeSSchemaWrapper(&coder, pSW); - pSchema = taosMemoryMalloc(sizeof(SSchema) * pSW->nCols); - memcpy(pSchema, pSW->pSchema, sizeof(SSchema) * pSW->nCols); - tDecoderClear(&coder); - - pSW->pSchema = pSchema; - - tdbFree(pVal); - - return pSW; +_err: + metaULock(pMeta); + tdbFree(pData); + return NULL; } struct SMCtbCursor {