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Merge pull request #24474 from taosdata/FIX/TD-28018 

Fix: last row num error where partition by null column
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dapan1121 2024-01-16 08:48:25 +08:00 committed by GitHub
parent 89493dcc3e fafb5b1f03
commit 22b8dbe7d5
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2 changed files with 5 additions and 2 deletions
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5
source/dnode/vnode/src/tsdb/tsdbCacheRead.c
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@ -391,7 +391,10 @@ int32_t tsdbRetrieveCacheRows(void* pReader, SSDataBlock* pResBlock, const int32
if (!COL_VAL_IS_VALUE(&p->colVal)) {
hasNotNullRow = false;
}
continue;
// For all of cols is null, the last null col of last table will be save
if (i != pr->numOfTables - 1 || k != pr->numOfCols - 1 || hasRes) {
continue;
}
}
hasRes = true;

2
tests/system-test/2-query/last_cache_scan.py
View File

@ -387,7 +387,7 @@ class TDTestCase:
tdSql.query('select last(c1) from meters partition by t1')
print(str(tdSql.queryResult))
tdSql.checkCols(1)
tdSql.checkRows(2)
tdSql.checkRows(5)
p = subprocess.run(["taos", '-s', "alter table test.meters drop column c1; alter table test.meters add column c2 int"])
p.check_returncode()
tdSql.query_success_failed('select last(c1) from meters partition by t1', queryTimes=10, expectErrInfo="Invalid column name: c1")