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[td-187] support group by on normal columns.

This commit is contained in:
hjxilinx 2020-04-24 18:47:21 +08:00
parent 102cf898a4
commit 7ddbf61980
2 changed files with 31 additions and 13 deletions
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6
src/client/src/tscSQLParser.c
View File

@ -2477,6 +2477,10 @@ int32_t parseGroupbyClause(SQueryInfo* pQueryInfo, tVariantList* pList, SSqlCmd*
return TSDB_CODE_SUCCESS;
}
if (pQueryInfo->colList == NULL) {
pQueryInfo->colList = taosArrayInit(4, POINTER_BYTES);
}
pQueryInfo->groupbyExpr.numOfGroupCols = pList->nExpr;
if (pList->nExpr > TSDB_MAX_TAGS) {
return invalidSqlErrMsg(pQueryInfo->msg, msg1);
@ -4915,7 +4919,7 @@ void doAddGroupColumnForSubquery(SQueryInfo* pQueryInfo, int32_t tagIndex) {
list.num = 1;
list.ids[0] = colIndex;
insertResultField(pQueryInfo, size - 1, &list, pSchema->bytes, pSchema->type, pSchema->name, pExpr);
insertResultField(pQueryInfo, size, &list, pSchema->bytes, pSchema->type, pSchema->name, pExpr);
SFieldSupInfo* pInfo = tscFieldInfoGetSupp(&pQueryInfo->fieldsInfo, size - 1);
pInfo->visible = false;
}

38
src/query/src/queryExecutor.c
View File

@ -990,9 +990,7 @@ static int32_t setGroupResultOutputBuf(SQueryRuntimeEnv *pRuntimeEnv, char *pDat
return TSDB_CODE_SUCCESS;
}
static UNUSED_FUNC char *getGroupbyColumnData(SQuery *pQuery, SData **data, int16_t *type, int16_t *bytes) {
char *groupbyColumnData = NULL;
static char *getGroupbyColumnData(SQuery *pQuery, int16_t *type, int16_t *bytes, SArray* pDataBlock) {
SSqlGroupbyExpr *pGroupbyExpr = pQuery->pGroupbyExpr;
for (int32_t k = 0; k < pGroupbyExpr->numOfGroupCols; ++k) {
@ -1015,12 +1013,22 @@ static UNUSED_FUNC char *getGroupbyColumnData(SQuery *pQuery, SData **data, int1
*type = pQuery->colList[colIndex].type;
*bytes = pQuery->colList[colIndex].bytes;
// groupbyColumnData = doGetDataBlocks(pQuery, data, pQuery->colList[colIndex].inf);
break;
/*
* the colIndex is acquired from the first meter of all qualified meters in this vnode during query prepare
* stage, the remain meter may not have the required column in cache actually. So, the validation of required
* column in cache with the corresponding meter schema is reinforced.
*/
int32_t numOfCols = taosArrayGetSize(pDataBlock);
for (int32_t i = 0; i < numOfCols; ++i) {
SColumnInfoData *p = taosArrayGet(pDataBlock, i);
if (pColIndex->colId == p->info.colId) {
return p->pData;
}
}
}
return groupbyColumnData;
return NULL;
}
static int32_t doTSJoinFilter(SQueryRuntimeEnv *pRuntimeEnv, int32_t offset) {
@ -1091,8 +1099,7 @@ static void rowwiseApplyFunctions(SQueryRuntimeEnv *pRuntimeEnv, SDataStatis *pS
char *groupbyColumnData = NULL;
if (groupbyStateValue) {
assert(0);
// groupbyColumnData = getGroupbyColumnData(pQuery, data, &type, &bytes);
groupbyColumnData = getGroupbyColumnData(pQuery, &type, &bytes, pDataBlock);
}
for (int32_t k = 0; k < pQuery->numOfOutput; ++k) {
@ -6088,9 +6095,16 @@ int32_t qCreateQueryInfo(void *tsdb, SQueryTableMsg *pQueryMsg, qinfo_t *pQInfo)
STableId *id = taosArrayGet(pTableIdList, 0);
id->uid = -1; // todo fix me
// group by normal column, do not pass the group by condition to tsdb to group table into different group
int32_t numOfGroupByCols = pQueryMsg->numOfGroupCols;
if (pQueryMsg->numOfGroupCols == 1 && !TSDB_COL_IS_TAG(pGroupColIndex->flag)) {
numOfGroupByCols = 0;
}
// todo handle the error
/*int32_t ret =*/tsdbQueryByTagsCond(tsdb, id->uid, tagCond, pQueryMsg->tagCondLen, &groupInfo, pGroupColIndex,
pQueryMsg->numOfGroupCols);
numOfGroupByCols);
if (groupInfo.numOfTables == 0) { // no qualified tables no need to do query
code = TSDB_CODE_SUCCESS;
goto _query_over;