xxq250
/
homework-jianmu
1
0
Fork 0
Code Issues Pull Requests 1 Actions Packages Projects Releases Wiki Activity

refactor(query):check for none table.

This commit is contained in:
Haojun Liao 2022-09-14 14:53:52 +08:00
parent be88fc3826
commit 4d44b56ec6
1 changed files with 38 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

70
source/dnode/vnode/src/tsdb/tsdbRead.c
View File

@ -3507,45 +3507,47 @@ int32_t tsdbReaderOpen(SVnode* pVnode, SQueryTableDataCond* pCond, SArray* pTabl
goto _err;
}
code = tsdbTakeReadSnap(pReader->pTsdb, &pReader->pReadSnap);
if (code != TSDB_CODE_SUCCESS) {
goto _err;
}
if (pReader->type == TIMEWINDOW_RANGE_CONTAINED) {
SDataBlockIter* pBlockIter = &pReader->status.blockIter;
initFilesetIterator(&pReader->status.fileIter, pReader->pReadSnap->fs.aDFileSet, pReader);
resetDataBlockIterator(&pReader->status.blockIter, pReader->order);
// no data in files, let's try buffer in memory
if (pReader->status.fileIter.numOfFiles == 0) {
pReader->status.loadFromFile = false;
} else {
code = initForFirstBlockInFile(pReader, pBlockIter);
if (code != TSDB_CODE_SUCCESS) {
return code;
}
}
} else {
STsdbReader* pPrevReader = pReader->innerReader[0];
SDataBlockIter* pBlockIter = &pPrevReader->status.blockIter;
code = tsdbTakeReadSnap(pPrevReader->pTsdb, &pPrevReader->pReadSnap);
if (numOfTables > 0) {
code = tsdbTakeReadSnap(pReader->pTsdb, &pReader->pReadSnap);
if (code != TSDB_CODE_SUCCESS) {
goto _err;
}
initFilesetIterator(&pPrevReader->status.fileIter, pPrevReader->pReadSnap->fs.aDFileSet, pPrevReader);
resetDataBlockIterator(&pPrevReader->status.blockIter, pPrevReader->order);
if (pReader->type == TIMEWINDOW_RANGE_CONTAINED) {
SDataBlockIter* pBlockIter = &pReader->status.blockIter;
// no data in files, let's try buffer in memory
if (pPrevReader->status.fileIter.numOfFiles == 0) {
pPrevReader->status.loadFromFile = false;
initFilesetIterator(&pReader->status.fileIter, pReader->pReadSnap->fs.aDFileSet, pReader);
resetDataBlockIterator(&pReader->status.blockIter, pReader->order);
// no data in files, let's try buffer in memory
if (pReader->status.fileIter.numOfFiles == 0) {
pReader->status.loadFromFile = false;
} else {
code = initForFirstBlockInFile(pReader, pBlockIter);
if (code != TSDB_CODE_SUCCESS) {
return code;
}
}
} else {
code = initForFirstBlockInFile(pPrevReader, pBlockIter);
STsdbReader* pPrevReader = pReader->innerReader[0];
SDataBlockIter* pBlockIter = &pPrevReader->status.blockIter;
code = tsdbTakeReadSnap(pPrevReader->pTsdb, &pPrevReader->pReadSnap);
if (code != TSDB_CODE_SUCCESS) {
return code;
goto _err;
}
initFilesetIterator(&pPrevReader->status.fileIter, pPrevReader->pReadSnap->fs.aDFileSet, pPrevReader);
resetDataBlockIterator(&pPrevReader->status.blockIter, pPrevReader->order);
// no data in files, let's try buffer in memory
if (pPrevReader->status.fileIter.numOfFiles == 0) {
pPrevReader->status.loadFromFile = false;
} else {
code = initForFirstBlockInFile(pPrevReader, pBlockIter);
if (code != TSDB_CODE_SUCCESS) {
return code;
}
}
}
}
@ -3604,6 +3606,10 @@ void tsdbReaderClose(STsdbReader* pReader) {
taosMemoryFree(pLReader);
}
if (pReader->innerReader[0] != 0) {
tsdbUntakeReadSnap(pReader->innerReader[0]->pTsdb, pReader->innerReader[0]->pReadSnap);
}
tsdbDebug(
"%p :io-cost summary: head-file:%" PRIu64 ", head-file time:%.2f ms, SMA:%" PRId64
" SMA-time:%.2f ms, fileBlocks:%" PRId64 ", fileBlocks-load-time:%.2f ms, "