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crash fix in distinct (strict weak ordering)

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vaclavt
2022-05-31 19:25:47 +02:00
parent 33f7cba493
commit a063e14f3e
3 changed files with 1 additions and 7 deletions
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usql_dml.cpp
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@@ -155,8 +155,7 @@ void USql::setup_order_columns(std::vector<ColOrderNode> &node, Table *table) {
void USql::execute_distinct(SelectFromTableNode &node, Table *result) {
if (!node.distinct) return;
auto compare_rows = [](const Row &a, const Row &b) { return a.compare(b) >= 0; };
std::sort(result->m_rows.begin(), result->m_rows.end(), compare_rows);
std::sort(result->m_rows.begin(), result->m_rows.end(), [](const Row &a, const Row &b) { return a.compare(b) > 0; });
result->m_rows.erase(std::unique(result->m_rows.begin(), result->m_rows.end()), result->m_rows.end());
}