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[td-168] fix bug in var string

This commit is contained in:
hjxilinx 2020-05-05 16:16:44 +08:00
parent 6d6ee1eadd
commit 547a7752ca
2 changed files with 5 additions and 3 deletions
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2
src/client/src/tscUtil.c
View File

@ -2138,6 +2138,8 @@ void tscGetResultColumnChr(SSqlRes* pRes, SFieldInfo* pFieldInfo, int32_t column
if (type == TSDB_DATA_TYPE_NCHAR || type == TSDB_DATA_TYPE_BINARY) {
int32_t realLen = varDataLen(pData);
assert(realLen <= bytes - VARSTR_HEADER_SIZE);
if (realLen < pInfo->pSqlExpr->resBytes - VARSTR_HEADER_SIZE) { // todo refactor
*(char*) (pData + realLen + VARSTR_HEADER_SIZE) = 0;
}

6
src/mnode/src/mgmtDb.c
View File

@ -540,13 +540,13 @@ static int32_t mgmtGetDbMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn)
}
#endif
pShow->bytes[cols] = 3;
pShow->bytes[cols] = 3 + VARSTR_HEADER_SIZE;
pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
strcpy(pSchema[cols].name, "precision");
pSchema[cols].bytes = htons(pShow->bytes[cols]);
cols++;
pShow->bytes[cols] = 10;
pShow->bytes[cols] = 10 + VARSTR_HEADER_SIZE;
pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
strcpy(pSchema[cols].name, "status");
pSchema[cols].bytes = htons(pShow->bytes[cols]);
@ -672,7 +672,7 @@ static int32_t mgmtRetrieveDbs(SShowObj *pShow, char *data, int32_t rows, void *
pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
char *prec = (pDb->cfg.precision == TSDB_TIME_PRECISION_MILLI) ? TSDB_TIME_PRECISION_MILLI_STR
: TSDB_TIME_PRECISION_MICRO_STR;
strcpy(pWrite, prec);
STR_WITH_SIZE_TO_VARSTR(pWrite, prec, 2);
cols++;
pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;