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https://github.com/taosdata/TDengine
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ac23a4fc55
* enh: add client processing * enh: add mnode vtables processing * enh: add mnode vtable processing * enh: add normal child vtable support * fix: compile issues * fix: compile issues * fix: create stream issues * fix: multi stream scan issue * fix: remove debug info * fix: agg task and task level issues * fix: correct task output type * fix: split vtablescan from agg * fix: memory leak issues * fix: add limitations * Update 09-error-code.md * Update 09-error-code.md * fix: remove usless case * feat(stream): extract original table data in source scan task Implemented functionality in the source task to extract data corresponding to the virtual table from the original table using WAL. The extracted data is then sent to the downstream merge task for further processing. * feat(stream): multi-way merge using loser tree in virtual merge task Implemented multi-way merge in the merge task using a loser tree to combine data from multiple original table into a single virtual table. The merged virtual table data is then pushed downstream for further processing. Introduced memory limit handling during the merge process with configurable behavior when the memory limit is reached. * fix(test): remove useless cases --------- Co-authored-by: dapan1121 <wpan@taosdata.com> Co-authored-by: Pan Wei <72057773+dapan1121@users.noreply.github.com>
47 lines
1.6 KiB
C
47 lines
1.6 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_STREAM_VTABLE_MERGE_H
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#define TDENGINE_STREAM_VTABLE_MERGE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "tcommon.h"
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#include "tpagedbuf.h"
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typedef struct SStreamVtableMergeHandle SStreamVtableMergeHandle;
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typedef enum {
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SVM_NEXT_NOT_READY = 0,
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SVM_NEXT_FOUND = 1,
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} SVM_NEXT_RESULT;
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int32_t streamVtableMergeCreateHandle(SStreamVtableMergeHandle **ppHandle, int32_t nSrcTbls, int32_t numPageLimit,
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SDiskbasedBuf *pBuf, SSDataBlock *pResBlock, const char *idstr);
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void streamVtableMergeDestroyHandle(SStreamVtableMergeHandle **ppHandle);
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int32_t streamVtableMergeAddBlock(SStreamVtableMergeHandle *pHandle, SSDataBlock *pDataBlock, const char *idstr);
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int32_t streamVtableMergeNextTuple(SStreamVtableMergeHandle *pHandle, SSDataBlock *pResBlock, SVM_NEXT_RESULT *pRes,
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const char *idstr);
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#ifdef __cplusplus
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}
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#endif
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#endif // TDENGINE_STREAM_VTABLE_MERGE_H
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