提交 b5554878 编写于 作者: H Haojun Liao

[TD-2293]<enhance>: improve projection query performance for super table.

上级 43a3f513
......@@ -5311,9 +5311,10 @@ int32_t parseLimitClause(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t clauseIn
if (tscOrderedProjectionQueryOnSTable(pQueryInfo, 0)) {
/*
* the limitation/offset value should be removed during retrieve data from virtual node,
* since the global order are done in client side, so the limitation should also
* be done at the client side.
* the offset value should be removed during retrieve data from virtual node, since the
* global order are done in client side, so the offset is applied at the client side
* However, note that the maximum allowed number of result for each table should be less
* than or equal to the value of limit.
*/
if (pQueryInfo->limit.limit > 0) {
pQueryInfo->limit.limit = -1;
......
......@@ -190,6 +190,7 @@ typedef struct SQueryRuntimeEnv {
bool groupbyNormalCol; // denote if this is a groupby normal column query
bool hasTagResults; // if there are tag values in final result or not
bool timeWindowInterpo;// if the time window start/end required interpolation
bool queryWindowIdentical; // all query time windows are identical for all tables in one group
int32_t interBufSize; // intermediate buffer sizse
int32_t prevGroupId; // previous executed group id
SDiskbasedResultBuf* pResultBuf; // query result buffer based on blocked-wised disk file
......@@ -217,7 +218,8 @@ typedef struct SQInfo {
STableGroupInfo tableGroupInfo; // table <tid, last_key> list SArray<STableKeyInfo>
STableGroupInfo tableqinfoGroupInfo; // this is a group array list, including SArray<STableQueryInfo*> structure
SQueryRuntimeEnv runtimeEnv;
SArray* arrTableIdInfo;
// SArray* arrTableIdInfo;
SHashObj* arrTableIdInfo;
int32_t groupIndex;
/*
......
此差异已折叠。
......@@ -83,8 +83,6 @@ void resetTimeWindowInfo(SQueryRuntimeEnv *pRuntimeEnv, SWindowResInfo *pWindowR
return;
}
// assert(pWindowResInfo->size == 1);
for (int32_t i = 0; i < pWindowResInfo->size; ++i) {
SResultRow *pWindowRes = pWindowResInfo->pResult[i];
clearResultRow(pRuntimeEnv, pWindowRes, pWindowResInfo->type);
......
......@@ -151,8 +151,9 @@ static void pushfrontNodeInEntryList(SHashEntry *pEntry, SHashNode *pNode);
*/
SHashObj *taosHashInit(size_t capacity, _hash_fn_t fn, bool update, SHashLockTypeE type) {
if (capacity == 0 || fn == NULL) {
return NULL;
assert(fn != NULL);
if (capacity == 0) {
capacity = 4;
}
SHashObj *pHashObj = (SHashObj *)calloc(1, sizeof(SHashObj));
......
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