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Mcol 3738 Allow COUNT(DISTINCT to have multiple parms) (#2002)

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* MCOL-3738 allow COUNT(DISTINCT) multiple parameters
Changes in the way tupleaggregatestep sets up the aggregate arrays.

* MCOL-3738 mtr test
This commit is contained in:
David.Hall
2021-06-28 12:14:44 -05:00
committed by GitHub
parent 994e8027bd
commit 132146b9c8
4 changed files with 310 additions and 105 deletions
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9
dbcon/mysql/ha_mcs_execplan.cpp
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@ -4737,10 +4737,11 @@ ReturnedColumn* buildAggregateColumn(Item* item, gp_walk_info& gwi)
gwi.aggOnSelect = true;
// Argument_count() is the # of formal parms to the agg fcn. Columnstore
// only supports 1 argument except UDAnF and GROUP_CONCAT
// TODO: Support more than one parm for COUNT(DISTINCT)
if (isp->argument_count() != 1 && isp->sum_func() != Item_sum::GROUP_CONCAT_FUNC
&& isp->sum_func() != Item_sum::UDF_SUM_FUNC)
// only supports 1 argument except UDAnF, COUNT(DISTINC) and GROUP_CONCAT
if (isp->argument_count() != 1
&& isp->sum_func() != Item_sum::COUNT_DISTINCT_FUNC
&& isp->sum_func() != Item_sum::GROUP_CONCAT_FUNC
&& isp->sum_func() != Item_sum::UDF_SUM_FUNC)
{
gwi.fatalParseError = true;
gwi.parseErrorText = IDBErrorInfo::instance()->errorMsg(ERR_MUL_ARG_AGG);