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This commit is contained in:
Hongze Cheng 2021-12-28 16:22:35 +08:00
parent 846acadf04
commit 74900ff04e
2 changed files with 69 additions and 7 deletions
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2
include/dnode/vnode/meta/meta.h
View File

@ -48,7 +48,7 @@ int metaDropTable(SMeta *pMeta, tb_uid_t uid);
int metaCommit(SMeta *pMeta);
// For Query
int metaGetTableInfo(SMeta *pMeta, const char *tbname, STableMetaMsg **ppMsg);
int metaGetTableInfo(SMeta *pMeta, char *tbname, STableMetaMsg **ppMsg);
// Options
void metaOptionsInit(SMetaCfg *pMetaCfg);

74
source/dnode/vnode/meta/src/metaBDBImpl.c
View File

@ -431,17 +431,79 @@ static void metaClearTbCfg(STbCfg *pTbCfg) {
}
/* ------------------------ FOR QUERY ------------------------ */
int metaGetTableInfo(SMeta *pMeta, const char *tbname, STableMetaMsg **ppMsg) {
DBT key = {0};
DBT value = {0};
SMetaDB *pMetaDB = pMeta->pDB;
int metaGetTableInfo(SMeta *pMeta, char *tbname, STableMetaMsg **ppMsg) {
DBT key = {0};
DBT value = {0};
SMetaDB * pMetaDB = pMeta->pDB;
int ret;
STbCfg tbCfg;
SSchemaKey schemaKey;
DBT key1 = {0};
DBT value1 = {0};
uint32_t ncols;
void * pBuf;
int tlen;
STableMetaMsg *pMsg;
key.data = tbname;
key.size = strlen(tbname) + 1;
pMetaDB->pNameIdx->get(pMetaDB->pNameIdx, NULL, &key, &value, 0);
ret = pMetaDB->pNameIdx->get(pMetaDB->pNameIdx, NULL, &key, &value, 0);
if (ret != 0) {
// TODO
return -1;
}
// TODO: construct the message body
metaDecodeTbInfo(value.data, &tbCfg);
switch (tbCfg.type) {
case META_SUPER_TABLE:
schemaKey.uid = tbCfg.stbCfg.suid;
schemaKey.sver = 0;
key1.data = &schemaKey;
key1.size = sizeof(schemaKey);
ret = pMetaDB->pSchemaDB->get(pMetaDB->pSchemaDB, &key1, &value1, NULL, 0);
if (ret != 0) {
// TODO
return -1;
}
pBuf = value1.data;
pBuf = taosDecodeFixedU32(pBuf, &ncols);
tlen = sizeof(STableMetaMsg) + (tbCfg.stbCfg.nTagCols + ncols) * sizeof(SSchema);
pMsg = calloc(1, tlen);
if (pMsg == NULL) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return -1;
}
strcpy(pMsg->tbFname, tbCfg.name);
pMsg->numOfTags = tbCfg.stbCfg.nTagCols;
pMsg->numOfColumns = ncols;
pMsg->tableType = tbCfg.type;
pMsg->sversion = 0;
pMsg->tversion = 0;
pMsg->suid = tbCfg.stbCfg.suid;
pMsg->tuid = tbCfg.stbCfg.suid;
for (size_t i = 0; i < tbCfg.stbCfg.nTagCols; i++) {
}
break;
case META_CHILD_TABLE:
ASSERT(0);
break;
case META_NORMAL_TABLE:
ASSERT(0);
break;
default:
ASSERT(0);
break;
}
*ppMsg = pMsg;
return 0;
}