78 lines
2.7 KiB
C
78 lines
2.7 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_TFILL_H
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#define TDENGINE_TFILL_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "os.h"
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#include "taosdef.h"
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struct SSDataBlock;
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typedef struct SFillColInfo {
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STColumn col; // column info
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int16_t functionId; // sql function id
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int16_t flag; // column flag: TAG COLUMN|NORMAL COLUMN
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int16_t tagIndex; // index of current tag in SFillTagColInfo array list
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union {int64_t i; double d;} fillVal;
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} SFillColInfo;
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typedef struct {
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SSchema col;
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char* tagVal;
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} SFillTagColInfo;
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typedef struct SFillInfo {
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TSKEY start; // start timestamp
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TSKEY end; // endKey for fill
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TSKEY currentKey; // current active timestamp, the value may be changed during the fill procedure.
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int32_t order; // order [TSDB_ORDER_ASC|TSDB_ORDER_DESC]
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int32_t type; // fill type
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int32_t numOfRows; // number of rows in the input data block
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int32_t index; // active row index
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int32_t numOfTotal; // number of filled rows in one round
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int32_t numOfCurrent; // number of filled rows in current results
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int32_t numOfTags; // number of tags
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int32_t numOfCols; // number of columns, including the tags columns
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int32_t rowSize; // size of each row
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SInterval interval;
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char * prevValues; // previous row of data, to generate the interpolation results
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char * nextValues; // next row of data
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char** pData; // original result data block involved in filling data
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int32_t alloc; // data buffer size in rows
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int8_t precision; // time resoluation
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SFillColInfo* pFillCol; // column info for fill operations
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SFillTagColInfo* pTags; // tags value for filling gap
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void* handle; // for debug purpose
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} SFillInfo;
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int64_t getNumOfResultsAfterFillGap(SFillInfo* pFillInfo, int64_t ekey, int32_t maxNumOfRows);
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#ifdef __cplusplus
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}
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#endif
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#endif // TDENGINE_TFILL_H
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