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Merge pull request #11052 from taosdata/feature/3.0_liaohj 

[td-13039] support nchar in taos_fetch_block.
This commit is contained in:
Haojun Liao 2022-03-28 15:56:18 +08:00 committed by GitHub
parent ddfcac1951 bee71f5f42
commit 8239b576da
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 29 additions and 15 deletions
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44
source/client/src/clientImpl.c
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@ -558,15 +558,6 @@ static void doSetOneRowPtr(SReqResultInfo* pResultInfo) {
pResultInfo->length[i] = varDataLen(pStart);
pResultInfo->row[i] = varDataVal(pStart);
if (type == TSDB_DATA_TYPE_NCHAR) {
int32_t len = taosUcs4ToMbs((TdUcs4*)varDataVal(pStart), varDataLen(pStart), varDataVal(pResultInfo->convertBuf[i]));
ASSERT(len <= bytes);
pResultInfo->row[i] = varDataVal(pResultInfo->convertBuf[i]);
varDataSetLen(pResultInfo->convertBuf[i], len);
pResultInfo->length[i] = len;
}
} else {
pResultInfo->row[i] = NULL;
}
@ -689,12 +680,6 @@ static int32_t doPrepareResPtr(SReqResultInfo* pResInfo) {
if (pResInfo->row == NULL || pResInfo->pCol == NULL || pResInfo->length == NULL || pResInfo->convertBuf == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
for(int32_t i = 0; i < pResInfo->numOfCols; ++i) {
if(pResInfo->fields[i].type == TSDB_DATA_TYPE_NCHAR) {
pResInfo->convertBuf[i] = taosMemoryCalloc(1, NCHAR_WIDTH_TO_BYTES(pResInfo->fields[i].bytes));
}
}
}
return TSDB_CODE_SUCCESS;
@ -731,6 +716,35 @@ int32_t setResultDataPtr(SReqResultInfo* pResultInfo, TAOS_FIELD* pFields, int32
pStart += colLength[i];
}
for (int32_t i = 0; i < numOfCols; ++i) {
int32_t type = pResultInfo->fields[i].type;
int32_t bytes = pResultInfo->fields[i].bytes;
if (type == TSDB_DATA_TYPE_NCHAR) {
char* p = taosMemoryRealloc(pResultInfo->convertBuf[i], colLength[i]);
if (p == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
pResultInfo->convertBuf[i] = p;
SResultColumn* pCol = &pResultInfo->pCol[i];
for (int32_t j = 0; j < numOfRows; ++j) {
if (pCol->offset[j] != -1) {
pStart = pCol->offset[j] + pCol->pData;
int32_t len = taosUcs4ToMbs((TdUcs4*)varDataVal(pStart), varDataLen(pStart), varDataVal(p));
ASSERT(len <= bytes);
varDataSetLen(p, len);
pCol->offset[j] = (p - pResultInfo->convertBuf[i]);
p += (len + VARSTR_HEADER_SIZE);
}
}
pResultInfo->pCol[i].pData = pResultInfo->convertBuf[i];
}
}
return TSDB_CODE_SUCCESS;
}