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MCOL-653 Revert SUM(1) behaviour

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SUM(1) behaviour was changed as part of MCOL-301. But the original
behaviour was correct.
This commit is contained in:
Andrew Hutchings
2017-03-31 21:47:12 +01:00
parent 310f8e5a6c
commit b60c45a968
1 changed files with 0 additions and 8 deletions
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8
dbcon/mysql/ha_calpont_execplan.cpp
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@ -3563,10 +3563,6 @@ ReturnedColumn* buildAggregateColumn(Item* item, gp_walk_info& gwi)
if (ac->aggOp() == AggregateColumn::COUNT)
ac->aggOp(AggregateColumn::COUNT_ASTERISK);
// MCOL-301: treat SUM(1) as MAX(1) to get constant result
if (ac->aggOp() == AggregateColumn::SUM)
ac->aggOp(AggregateColumn::MAX);
ac->constCol(SRCP(buildReturnedColumn(sfitemp, gwi, gwi.fatalParseError)));
break;
}
@ -3605,10 +3601,6 @@ ReturnedColumn* buildAggregateColumn(Item* item, gp_walk_info& gwi)
ReturnedColumn* rc = buildReturnedColumn(sfitemp, gwi, gwi.fatalParseError);
if (dynamic_cast<ConstantColumn*>(rc))
{
// MCOL-301: treat SUM(1) as MAX(1) to get constant result
if (ac->aggOp() == AggregateColumn::SUM)
ac->aggOp(AggregateColumn::MAX);
//@bug5229. handle constant function on aggregate argument
ac->constCol(SRCP(rc));
break;