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more alter table

This commit is contained in:
Hongze Cheng 2022-05-17 05:30:08 +00:00
parent 6325c9ccf0
commit e1645ee19c
2 changed files with 34 additions and 3 deletions
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2
source/dnode/mnode/impl/src/mndStb.c
View File

@ -386,7 +386,7 @@ static void *mndBuildVCreateStbReq(SMnode *pMnode, SVgObj *pVgroup, SStbObj *pSt
req.schema.sver = pStb->version;
req.schema.pSchema = pStb->pColumns;
req.schemaTag.nCols = pStb->numOfTags;
req.schemaTag.nCols = 0;
req.schemaTag.sver = 1;
req.schemaTag.pSchema = pStb->pTags;
if (req.rollup) {

35
source/dnode/vnode/src/meta/metaTable.c
View File

@ -599,10 +599,41 @@ static int metaUpdateTableTagVal(SMeta *pMeta, int64_t version, SVAlterTbReq *pA
goto _err;
}
{
// TODO:
if (iCol == 0) {
// TODO : need to update tag index
}
ctbEntry.version = version;
SKVRowBuilder kvrb = {0};
const SKVRow pOldTag = (const SKVRow)ctbEntry.ctbEntry.pTags;
SKVRow pNewTag = NULL;
tdInitKVRowBuilder(&kvrb);
for (int32_t i = 0; i < pTagSchema->nCols; i++) {
SSchema *pCol = &pTagSchema->pSchema[i];
if (iCol == i) {
tdAddColToKVRow(&kvrb, pCol->colId, pAlterTbReq->pTagVal, pAlterTbReq->nTagVal);
} else {
void *p = tdGetKVRowValOfCol(pOldTag, pCol->colId);
if (p) {
if (IS_VAR_DATA_TYPE(pCol->type)) {
tdAddColToKVRow(&kvrb, pCol->colId, p, varDataTLen(p));
} else {
tdAddColToKVRow(&kvrb, pCol->colId, p, pCol->bytes);
}
}
}
}
ctbEntry.ctbEntry.pTags = tdGetKVRowFromBuilder(&kvrb);
tdDestroyKVRowBuilder(&kvrb);
// save to table.db
metaSaveToTbDb(pMeta, &ctbEntry);
// save to uid.idx
tdbDbUpsert(pMeta->pUidIdx, &ctbEntry.uid, sizeof(tb_uid_t), &version, sizeof(version), &pMeta->txn);
if (ctbEntry.pBuf) taosMemoryFree(ctbEntry.pBuf);
if (stbEntry.pBuf) tdbFree(stbEntry.pBuf);
tdbDbcClose(pTbDbc);