596 lines
22 KiB
C
596 lines
22 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef TDENGINE_QEXECUTOR_H
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#define TDENGINE_QEXECUTOR_H
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#include "os.h"
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#include "hash.h"
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#include "qAggMain.h"
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#include "qFill.h"
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#include "qResultbuf.h"
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#include "qSqlparser.h"
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#include "qTableMeta.h"
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#include "qTsbuf.h"
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#include "query.h"
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#include "taosdef.h"
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#include "tarray.h"
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#include "tlockfree.h"
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#include "tsdb.h"
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struct SColumnFilterElem;
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typedef bool (*__filter_func_t)(struct SColumnFilterElem* pFilter, const char* val1, const char* val2, int16_t type);
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typedef int32_t (*__block_search_fn_t)(char* data, int32_t num, int64_t key, int32_t order);
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#define IS_QUERY_KILLED(_q) ((_q)->code == TSDB_CODE_TSC_QUERY_CANCELLED)
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#define Q_STATUS_EQUAL(p, s) (((p) & (s)) != 0u)
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#define QUERY_IS_ASC_QUERY(q) (GET_FORWARD_DIRECTION_FACTOR((q)->order.order) == QUERY_ASC_FORWARD_STEP)
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#define GET_TABLEGROUP(q, _index) ((SArray*) taosArrayGetP((q)->tableqinfoGroupInfo.pGroupList, (_index)))
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#define GET_NUM_OF_RESULTS(_r) (((_r)->outputBuf) == NULL? 0:((_r)->outputBuf)->info.rows)
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enum {
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// when query starts to execute, this status will set
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QUERY_NOT_COMPLETED = 0x1u,
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/* query is over
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* 1. this status is used in one row result query process, e.g., count/sum/first/last/ avg...etc.
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* 2. when all data within queried time window, it is also denoted as query_completed
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*/
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QUERY_COMPLETED = 0x2u,
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/* when the result is not completed return to client, this status will be
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* usually used in case of interval query with interpolation option
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*/
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QUERY_OVER = 0x4u,
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};
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typedef struct SResultRowPool {
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int32_t elemSize;
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int32_t blockSize;
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int32_t numOfElemPerBlock;
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struct {
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int32_t blockIndex;
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int32_t pos;
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} position;
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SArray* pData; // SArray<void*>
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} SResultRowPool;
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typedef struct SResultRow {
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int32_t pageId; // pageId & rowId is the position of current result in disk-based output buffer
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int32_t offset:29; // row index in buffer page
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bool startInterp; // the time window start timestamp has done the interpolation already.
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bool endInterp; // the time window end timestamp has done the interpolation already.
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bool closed; // this result status: closed or opened
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uint32_t numOfRows; // number of rows of current time window
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SResultRowCellInfo* pCellInfo; // For each result column, there is a resultInfo
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STimeWindow win;
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char* key; // start key of current result row
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} SResultRow;
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typedef struct SGroupResInfo {
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int32_t totalGroup;
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int32_t currentGroup;
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int32_t index;
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SArray* pRows; // SArray<SResultRow*>
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} SGroupResInfo;
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/**
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* If the number of generated results is greater than this value,
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* query query will be halt and return results to client immediate.
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*/
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typedef struct SRspResultInfo {
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int64_t total; // total generated result size in rows
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int32_t capacity; // capacity of current result output buffer
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int32_t threshold; // result size threshold in rows.
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} SRspResultInfo;
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typedef struct SResultRowInfo {
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SResultRow** pResult; // result list
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int16_t type:8; // data type for hash key
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int32_t size:24; // number of result set
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int32_t capacity; // max capacity
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int32_t curIndex; // current start active index
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int64_t prevSKey; // previous (not completed) sliding window start key
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} SResultRowInfo;
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typedef struct SColumnFilterElem {
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int16_t bytes; // column length
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__filter_func_t fp;
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SColumnFilterInfo filterInfo;
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void *q;
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} SColumnFilterElem;
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typedef struct SSingleColumnFilterInfo {
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void* pData;
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int32_t numOfFilters;
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SColumnInfo info;
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SColumnFilterElem* pFilters;
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} SSingleColumnFilterInfo;
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typedef struct STableQueryInfo {
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TSKEY lastKey;
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int32_t groupIndex; // group id in table list
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tVariant tag;
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STimeWindow win;
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STSCursor cur;
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void* pTable; // for retrieve the page id list
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SResultRowInfo resInfo;
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} STableQueryInfo;
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typedef struct SQueryCostInfo {
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uint64_t loadStatisTime;
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uint64_t loadFileBlockTime;
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uint64_t loadDataInCacheTime;
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uint64_t loadStatisSize;
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uint64_t loadFileBlockSize;
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uint64_t loadDataInCacheSize;
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uint64_t loadDataTime;
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uint64_t totalRows;
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uint64_t totalCheckedRows;
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uint32_t totalBlocks;
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uint32_t loadBlocks;
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uint32_t loadBlockStatis;
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uint32_t discardBlocks;
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uint64_t elapsedTime;
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uint64_t firstStageMergeTime;
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uint64_t winInfoSize;
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uint64_t tableInfoSize;
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uint64_t hashSize;
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uint64_t numOfTimeWindows;
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} SQueryCostInfo;
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typedef struct {
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int64_t vgroupLimit;
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int64_t ts;
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} SOrderedPrjQueryInfo;
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typedef struct {
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char* tags;
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SArray* pResult; // SArray<SStddevInterResult>
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} SInterResult;
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typedef struct SSDataBlock {
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SDataStatis *pBlockStatis;
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SArray *pDataBlock;
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SDataBlockInfo info;
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} SSDataBlock;
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// The basic query information extracted from the SQueryInfo tree to support the
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// execution of query in a data node.
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typedef struct SQueryAttr {
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SLimitVal limit;
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SLimitVal slimit;
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bool stableQuery; // super table query or not
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bool topBotQuery; // TODO used bitwise flag
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bool groupbyColumn; // denote if this is a groupby normal column query
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bool hasTagResults; // if there are tag values in final result or not
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bool timeWindowInterpo;// if the time window start/end required interpolation
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bool queryBlockDist; // if query data block distribution
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bool stabledev; // super table stddev query
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bool tsCompQuery; // is tscomp query
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bool diffQuery; // is diff query
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bool simpleAgg;
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bool pointInterpQuery; // point interpolation query
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bool needReverseScan; // need reverse scan
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bool distinctTag; // distinct tag query
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bool stateWindow; // window State on sub/normal table
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int32_t interBufSize; // intermediate buffer sizse
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int32_t havingNum; // having expr number
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SOrderVal order;
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int16_t numOfCols;
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int16_t numOfTags;
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STimeWindow window;
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SInterval interval;
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SSessionWindow sw;
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int16_t precision;
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int16_t numOfOutput;
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int16_t fillType;
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int32_t srcRowSize; // todo extract struct
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int32_t resultRowSize;
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int32_t intermediateResultRowSize; // intermediate result row size, in case of top-k query.
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int32_t maxTableColumnWidth;
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int32_t tagLen; // tag value length of current query
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SGroupbyExpr *pGroupbyExpr;
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SExprInfo* pExpr1;
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SExprInfo* pExpr2;
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int32_t numOfExpr2;
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SExprInfo* pExpr3;
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int32_t numOfExpr3;
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SColumnInfo* tableCols;
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SColumnInfo* tagColList;
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int32_t numOfFilterCols;
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int64_t* fillVal;
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SOrderedPrjQueryInfo prjInfo; // limit value for each vgroup, only available in global order projection query.
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SSingleColumnFilterInfo* pFilterInfo;
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void* tsdb;
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SMemRef memRef;
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STableGroupInfo tableGroupInfo; // table <tid, last_key> list SArray<STableKeyInfo>
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int32_t vgId;
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} SQueryAttr;
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typedef SSDataBlock* (*__operator_fn_t)(void* param, bool* newgroup);
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typedef void (*__optr_cleanup_fn_t)(void* param, int32_t num);
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struct SOperatorInfo;
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typedef struct SQueryRuntimeEnv {
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jmp_buf env;
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SQueryAttr* pQueryAttr;
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uint32_t status; // query status
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void* qinfo;
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uint8_t scanFlag; // denotes reversed scan of data or not
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void* pQueryHandle;
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int32_t prevGroupId; // previous executed group id
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bool enableGroupData;
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SDiskbasedResultBuf* pResultBuf; // query result buffer based on blocked-wised disk file
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SHashObj* pResultRowHashTable; // quick locate the window object for each result
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char* keyBuf; // window key buffer
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SResultRowPool* pool; // window result object pool
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char** prevRow;
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SArray* prevResult; // intermediate result, SArray<SInterResult>
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STSBuf* pTsBuf; // timestamp filter list
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STSCursor cur;
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char* tagVal; // tag value of current data block
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SArithmeticSupport *sasArray;
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SSDataBlock *outputBuf;
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STableGroupInfo tableqinfoGroupInfo; // this is a group array list, including SArray<STableQueryInfo*> structure
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struct SOperatorInfo *proot;
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SGroupResInfo groupResInfo;
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int64_t currentOffset; // dynamic offset value
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STableQueryInfo *current;
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SRspResultInfo resultInfo;
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SHashObj *pTableRetrieveTsMap;
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} SQueryRuntimeEnv;
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enum {
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OP_IN_EXECUTING = 1,
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OP_RES_TO_RETURN = 2,
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OP_EXEC_DONE = 3,
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};
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enum OPERATOR_TYPE_E {
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OP_TableScan = 1,
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OP_DataBlocksOptScan = 2,
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OP_TableSeqScan = 3,
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OP_TagScan = 4,
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OP_TableBlockInfoScan= 5,
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OP_Aggregate = 6,
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OP_Arithmetic = 7,
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OP_Groupby = 8,
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OP_Limit = 9,
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OP_SLimit = 10,
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OP_TimeWindow = 11,
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OP_SessionWindow = 12,
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OP_Fill = 13,
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OP_MultiTableAggregate = 14,
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OP_MultiTableTimeInterval = 15,
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OP_DummyInput = 16, //TODO remove it after fully refactor.
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OP_MultiwayMergeSort = 17, // multi-way data merge into one input stream.
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OP_GlobalAggregate = 18, // global merge for the multi-way data sources.
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OP_Filter = 19,
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OP_Distinct = 20,
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OP_Join = 21,
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OP_StateWindow = 22,
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};
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typedef struct SOperatorInfo {
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uint8_t operatorType;
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bool blockingOptr; // block operator or not
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uint8_t status; // denote if current operator is completed
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int32_t numOfOutput; // number of columns of the current operator results
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char *name; // name, used to show the query execution plan
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void *info; // extension attribution
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SExprInfo *pExpr;
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SQueryRuntimeEnv *pRuntimeEnv;
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struct SOperatorInfo **upstream; // upstream pointer list
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int32_t numOfUpstream; // number of upstream. The value is always ONE expect for join operator
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__operator_fn_t exec;
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__optr_cleanup_fn_t cleanup;
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} SOperatorInfo;
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enum {
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QUERY_RESULT_NOT_READY = 1,
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QUERY_RESULT_READY = 2,
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};
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typedef struct {
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int32_t numOfTags;
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int32_t numOfCols;
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SColumnInfo *colList;
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} SQueriedTableInfo;
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typedef struct SQInfo {
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void* signature;
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uint64_t qId;
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int32_t code; // error code to returned to client
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int64_t owner; // if it is in execution
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SQueryRuntimeEnv runtimeEnv;
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SQueryAttr query;
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void* pBuf; // allocated buffer for STableQueryInfo, sizeof(STableQueryInfo)*numOfTables;
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pthread_mutex_t lock; // used to synchronize the rsp/query threads
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tsem_t ready;
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int32_t dataReady; // denote if query result is ready or not
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void* rspContext; // response context
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int64_t startExecTs; // start to exec timestamp
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char* sql; // query sql string
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SQueryCostInfo summary;
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} SQInfo;
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typedef struct SQueryParam {
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char *sql;
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char *tagCond;
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char *tbnameCond;
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char *prevResult;
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SArray *pTableIdList;
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SSqlExpr **pExpr;
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SSqlExpr **pSecExpr;
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SExprInfo *pExprs;
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SExprInfo *pSecExprs;
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SColIndex *pGroupColIndex;
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SColumnInfo *pTagColumnInfo;
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SGroupbyExpr *pGroupbyExpr;
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int32_t tableScanOperator;
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SArray *pOperator;
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} SQueryParam;
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typedef struct STableScanInfo {
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void *pQueryHandle;
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int32_t numOfBlocks;
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int32_t numOfSkipped;
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int32_t numOfBlockStatis;
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int64_t numOfRows;
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int32_t order; // scan order
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int32_t times; // repeat counts
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int32_t current;
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int32_t reverseTimes; // 0 by default
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SQLFunctionCtx *pCtx; // next operator query context
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SResultRowInfo *pResultRowInfo;
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int32_t *rowCellInfoOffset;
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SExprInfo *pExpr;
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SSDataBlock block;
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bool loadExternalRows; // load external rows (prev & next rows)
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int32_t numOfOutput;
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int64_t elapsedTime;
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int32_t tableIndex;
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int32_t prevGroupId; // previous table group id
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} STableScanInfo;
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typedef struct STagScanInfo {
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SColumnInfo* pCols;
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SSDataBlock* pRes;
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int32_t totalTables;
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int32_t currentIndex;
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} STagScanInfo;
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typedef struct SOptrBasicInfo {
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SResultRowInfo resultRowInfo;
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int32_t *rowCellInfoOffset; // offset value for each row result cell info
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SQLFunctionCtx *pCtx;
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SSDataBlock *pRes;
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} SOptrBasicInfo;
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typedef struct SOptrBasicInfo STableIntervalOperatorInfo;
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typedef struct SAggOperatorInfo {
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SOptrBasicInfo binfo;
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uint32_t seed;
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} SAggOperatorInfo;
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typedef struct SArithOperatorInfo {
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SOptrBasicInfo binfo;
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int32_t bufCapacity;
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uint32_t seed;
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SSDataBlock *existDataBlock;
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} SArithOperatorInfo;
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typedef struct SLimitOperatorInfo {
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int64_t limit;
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int64_t total;
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} SLimitOperatorInfo;
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typedef struct SSLimitOperatorInfo {
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int64_t groupTotal;
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int64_t currentGroupOffset;
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int64_t rowsTotal;
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int64_t currentOffset;
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SLimitVal limit;
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SLimitVal slimit;
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char **prevRow;
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SArray *orderColumnList;
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} SSLimitOperatorInfo;
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typedef struct SFilterOperatorInfo {
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SSingleColumnFilterInfo *pFilterInfo;
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int32_t numOfFilterCols;
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} SFilterOperatorInfo;
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typedef struct SFillOperatorInfo {
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SFillInfo *pFillInfo;
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SSDataBlock *pRes;
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int64_t totalInputRows;
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SSDataBlock *existNewGroupBlock;
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} SFillOperatorInfo;
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typedef struct SGroupbyOperatorInfo {
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SOptrBasicInfo binfo;
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int32_t colIndex;
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char *prevData; // previous group by value
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} SGroupbyOperatorInfo;
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typedef struct SSWindowOperatorInfo {
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SOptrBasicInfo binfo;
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STimeWindow curWindow; // current time window
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TSKEY prevTs; // previous timestamp
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int32_t numOfRows; // number of rows
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int32_t start; // start row index
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bool reptScan; // next round scan
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} SSWindowOperatorInfo;
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typedef struct SStateWindowOperatorInfo {
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SOptrBasicInfo binfo;
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STimeWindow curWindow; // current time window
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int32_t numOfRows; // number of rows
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int32_t colIndex; // start row index
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int32_t start;
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char* prevData; // previous data
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bool reptScan;
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} SStateWindowOperatorInfo ;
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typedef struct SDistinctOperatorInfo {
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SHashObj *pSet;
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SSDataBlock *pRes;
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bool recordNullVal; //has already record the null value, no need to try again
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int64_t threshold;
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int64_t outputCapacity;
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} SDistinctOperatorInfo;
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struct SGlobalMerger;
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typedef struct SMultiwayMergeInfo {
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struct SGlobalMerger *pMerge;
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SOptrBasicInfo binfo;
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int32_t bufCapacity;
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int64_t seed;
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char **prevRow;
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SArray *orderColumnList;
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int32_t resultRowFactor;
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bool hasGroupColData;
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char **currentGroupColData;
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SArray *groupColumnList;
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bool hasDataBlockForNewGroup;
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SSDataBlock *pExistBlock;
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bool hasPrev;
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bool groupMix;
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} SMultiwayMergeInfo;
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void appendUpstream(SOperatorInfo* p, SOperatorInfo* pUpstream);
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SOperatorInfo* createDataBlocksOptScanInfo(void* pTsdbQueryHandle, SQueryRuntimeEnv* pRuntimeEnv, int32_t repeatTime, int32_t reverseTime);
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SOperatorInfo* createTableScanOperator(void* pTsdbQueryHandle, SQueryRuntimeEnv* pRuntimeEnv, int32_t repeatTime);
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SOperatorInfo* createTableSeqScanOperator(void* pTsdbQueryHandle, SQueryRuntimeEnv* pRuntimeEnv);
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SOperatorInfo* createAggregateOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SOperatorInfo* upstream, SExprInfo* pExpr, int32_t numOfOutput);
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SOperatorInfo* createArithOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SOperatorInfo* upstream, SExprInfo* pExpr, int32_t numOfOutput);
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SOperatorInfo* createLimitOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SOperatorInfo* upstream);
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SOperatorInfo* createTimeIntervalOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SOperatorInfo* upstream, SExprInfo* pExpr, int32_t numOfOutput);
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SOperatorInfo* createSWindowOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SOperatorInfo* upstream, SExprInfo* pExpr, int32_t numOfOutput);
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SOperatorInfo* createFillOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SOperatorInfo* upstream, SExprInfo* pExpr, int32_t numOfOutput);
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SOperatorInfo* createGroupbyOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SOperatorInfo* upstream, SExprInfo* pExpr, int32_t numOfOutput);
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SOperatorInfo* createMultiTableAggOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SOperatorInfo* upstream, SExprInfo* pExpr, int32_t numOfOutput);
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SOperatorInfo* createMultiTableTimeIntervalOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SOperatorInfo* upstream, SExprInfo* pExpr, int32_t numOfOutput);
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SOperatorInfo* createTagScanOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SExprInfo* pExpr, int32_t numOfOutput);
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SOperatorInfo* createDistinctOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SOperatorInfo* upstream, SExprInfo* pExpr, int32_t numOfOutput);
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SOperatorInfo* createTableBlockInfoScanOperator(void* pTsdbQueryHandle, SQueryRuntimeEnv* pRuntimeEnv);
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SOperatorInfo* createMultiwaySortOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SExprInfo* pExpr, int32_t numOfOutput,
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int32_t numOfRows, void* merger, bool groupMix);
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SOperatorInfo* createStatewindowOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SOperatorInfo* upstream, SExprInfo* pExpr, int32_t numOfOutput);
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SOperatorInfo* createGlobalAggregateOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SOperatorInfo* upstream, SExprInfo* pExpr, int32_t numOfOutput, void* param);
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SOperatorInfo* createSLimitOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SOperatorInfo* upstream, SExprInfo* pExpr, int32_t numOfOutput, void* merger);
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SOperatorInfo* createFilterOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SOperatorInfo* upstream, SExprInfo* pExpr,
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int32_t numOfOutput, SColumnInfo* pCols, int32_t numOfFilter);
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SOperatorInfo* createJoinOperatorInfo(SOperatorInfo** pUpstream, int32_t numOfUpstream, SSchema* pSchema, int32_t numOfOutput);
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SSDataBlock* doGlobalAggregate(void* param, bool* newgroup);
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SSDataBlock* doMultiwayMergeSort(void* param, bool* newgroup);
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SSDataBlock* doSLimit(void* param, bool* newgroup);
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int32_t doCreateFilterInfo(SColumnInfo* pCols, int32_t numOfCols, int32_t numOfFilterCols, SSingleColumnFilterInfo** pFilterInfo, uint64_t qId);
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void doSetFilterColumnInfo(SSingleColumnFilterInfo* pFilterInfo, int32_t numOfFilterCols, SSDataBlock* pBlock);
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bool doFilterDataBlock(SSingleColumnFilterInfo* pFilterInfo, int32_t numOfFilterCols, int32_t numOfRows, int8_t* p);
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void doCompactSDataBlock(SSDataBlock* pBlock, int32_t numOfRows, int8_t* p);
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SSDataBlock* createOutputBuf(SExprInfo* pExpr, int32_t numOfOutput, int32_t numOfRows);
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void* destroyOutputBuf(SSDataBlock* pBlock);
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void setInputDataBlock(SOperatorInfo* pOperator, SQLFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t order);
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int32_t getNumOfResult(SQueryRuntimeEnv *pRuntimeEnv, SQLFunctionCtx* pCtx, int32_t numOfOutput);
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void finalizeQueryResult(SOperatorInfo* pOperator, SQLFunctionCtx* pCtx, SResultRowInfo* pResultRowInfo, int32_t* rowCellInfoOffset);
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void updateOutputBuf(SOptrBasicInfo* pBInfo, int32_t *bufCapacity, int32_t numOfInputRows);
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void freeParam(SQueryParam *param);
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int32_t convertQueryMsg(SQueryTableMsg *pQueryMsg, SQueryParam* param);
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int32_t createQueryFunc(SQueriedTableInfo* pTableInfo, int32_t numOfOutput, SExprInfo** pExprInfo,
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SSqlExpr** pExprMsg, SColumnInfo* pTagCols, int32_t queryType, void* pMsg);
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int32_t createIndirectQueryFuncExprFromMsg(SQueryTableMsg *pQueryMsg, int32_t numOfOutput, SExprInfo **pExprInfo,
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SSqlExpr **pExpr, SExprInfo *prevExpr);
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SGroupbyExpr *createGroupbyExprFromMsg(SQueryTableMsg *pQueryMsg, SColIndex *pColIndex, int32_t *code);
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SQInfo *createQInfoImpl(SQueryTableMsg *pQueryMsg, SGroupbyExpr *pGroupbyExpr, SExprInfo *pExprs,
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SExprInfo *pSecExprs, STableGroupInfo *pTableGroupInfo, SColumnInfo* pTagCols, int32_t vgId, char* sql, uint64_t *qId);
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int32_t initQInfo(STsBufInfo* pTsBufInfo, void* tsdb, void* sourceOptr, SQInfo* pQInfo, SQueryParam* param, char* start,
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int32_t prevResultLen, void* merger);
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int32_t createFilterInfo(SQueryAttr* pQueryAttr, uint64_t qId);
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void freeColumnFilterInfo(SColumnFilterInfo* pFilter, int32_t numOfFilters);
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STableQueryInfo *createTableQueryInfo(SQueryAttr* pQueryAttr, void* pTable, bool groupbyColumn, STimeWindow win, void* buf);
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STableQueryInfo* createTmpTableQueryInfo(STimeWindow win);
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int32_t buildArithmeticExprFromMsg(SExprInfo *pArithExprInfo, void *pQueryMsg);
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bool isQueryKilled(SQInfo *pQInfo);
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int32_t checkForQueryBuf(size_t numOfTables);
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bool doBuildResCheck(SQInfo* pQInfo);
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void setQueryStatus(SQueryRuntimeEnv *pRuntimeEnv, int8_t status);
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bool onlyQueryTags(SQueryAttr* pQueryAttr);
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bool isValidQInfo(void *param);
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int32_t doDumpQueryResult(SQInfo *pQInfo, char *data);
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size_t getResultSize(SQInfo *pQInfo, int64_t *numOfRows);
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void setQueryKilled(SQInfo *pQInfo);
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void queryCostStatis(SQInfo *pQInfo);
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void freeQInfo(SQInfo *pQInfo);
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void freeQueryAttr(SQueryAttr *pQuery);
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int32_t getMaximumIdleDurationSec();
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#endif // TDENGINE_QEXECUTOR_H
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