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Merge pull request #17224 from taosdata/fix/TD-19314 

fix(query): fix infinite interpolation results generated when sliding window is smaller than interval window in descending time order
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Shengliang Guan 2022-10-09 13:36:42 +08:00 committed by GitHub
parent 8e4a0912a2 1fc1546af9
commit f298119e31
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2 changed files with 25 additions and 3 deletions
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2
source/libs/executor/src/tfill.c
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@ -584,7 +584,7 @@ int64_t getNumOfResultsAfterFillGap(SFillInfo* pFillInfo, TSKEY ekey, int32_t ma
assert(numOfRes >= numOfRows);
} else { // reach the end of data
if ((ekey1 < pFillInfo->currentKey && FILL_IS_ASC_FILL(pFillInfo)) ||
(ekey1 > pFillInfo->currentKey && !FILL_IS_ASC_FILL(pFillInfo))) {
(ekey1 >= pFillInfo->currentKey && !FILL_IS_ASC_FILL(pFillInfo))) {
return 0;
}
numOfRes = taosTimeCountInterval(ekey1, pFillInfo->currentKey, pFillInfo->interval.sliding,

26
tests/script/tsim/parser/fill.sim
View File

@ -795,12 +795,34 @@ if $data81 != 4 then
endi
# desc fill query
print desc fill query
sql select count(*) from m_fl_tb0 where ts>='2018-9-17 9:0:0' and ts<='2018-9-17 9:11:00' interval(1m) fill(value,10);
print asc fill query
sql select _wstart,count(*) from m_fl_tb0 where ts>='2018-9-17 9:0:0' and ts<='2018-9-17 9:11:00' interval(1m) fill(value,10) order by _wstart asc;
if $rows != 12 then
return -1
endi
if $data00 != @18-09-17 09:00:00.000@ then
return -1
endi
if $data01 != 1 then
return -1
endi
print desc fill query
sql select _wstart,count(*) from m_fl_tb0 where ts>='2018-9-17 9:0:0' and ts<='2018-9-17 9:11:00' interval(1m) fill(value,10) order by _wstart desc;
if $rows != 12 then
return -1
endi
if $data00 != @18-09-17 09:11:00.000@ then
return -1
endi
if $data01 != 10 then
return -1
endi
print =====================> aggregation + arithmetic + fill, need to add cases TODO
#sql select avg(cpu_taosd) - first(cpu_taosd) from dn1 where ts<'2020-11-13 11:00:00' and ts>'2020-11-13 10:50:00' interval(10s) fill(value, 99)
#sql select count(*), first(k), avg(k), avg(k)-first(k) from tm0 where ts>'2020-1-1 1:1:1' and ts<'2020-1-1 1:02:59' interval(10s) fill(value, 99);