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MCOL-1052 WIP Incorporate a fix for MCOL-1348. Comment on the group_by_handler class.

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This commit is contained in:
Roman Nozdrin
2018-04-20 20:44:28 +03:00
parent 33a5969dc3
commit b8f3cb2a98
4 changed files with 105 additions and 34 deletions
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12
dbcon/mysql/ha_window_function.cpp
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@ -512,6 +512,18 @@ ReturnedColumn* buildWindowFunctionColumn(Item* item, gp_walk_info& gwi, bool& n
{
Item* orderItem = *(orderCol->item);
srcp.reset(buildReturnedColumn(orderItem, gwi, nonSupport));
// MCOL-1052 GROUP BY handler has all of query's agg Items
// as field and correlates them with its extended SELECT Items.
if (!srcp)
{
orderItem = orderCol->item_ptr;
if (orderItem)
{
gwi.fatalParseError = false;
srcp.reset(buildReturnedColumn(orderItem, gwi, nonSupport));
}
}
if (!srcp)
return nullOnError(gwi);