database/mariadb-columnstore-engine
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MCOL-1829 Subquery with limited order by could potentially return onordered set.

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There were two code mistakes: Eq::operator() always returned true for
	any pair and Hasher::operator() always returned 0 as a key.
This commit is contained in:
Roman Nozdrin
2018-12-25 12:50:18 +03:00
parent 0584b114da
commit 35a17a87c4
4 changed files with 16 additions and 17 deletions
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utils/rowgroup/rowgroup.h
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@ -1183,6 +1183,7 @@ inline bool Row::equals(const Row& r2, const std::vector<uint32_t>& keyCols) con
inline bool Row::equals(const Row& r2, uint32_t lastCol) const
{
// This check fires with empty r2 only.
if (lastCol >= columnCount)
return true;