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added secondary sort expression [#CLICKHOUSE-3479]

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Nikolai Kochetov 2018-02-09 17:37:02 +03:00 committed by alexey-milovidov
parent 64b3a8baa7
commit 36de8a2911
1 changed files with 5 additions and 2 deletions
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7
dbms/src/Storages/MergeTree/MergeTreeDataMerger.cpp
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@ -331,9 +331,12 @@ static void extractMergingAndGatheringColumns(const NamesAndTypesList & all_colu
)
{
Names primary_key_columns_dup = primary_key_expressions->getRequiredColumns();
Names secondary_key_columns_dup = secondary_key_expressions->getRequiredColumns();
std::set<String> key_columns(primary_key_columns_dup.cbegin(), primary_key_columns_dup.cend());
key_columns.insert(secondary_key_columns_dup.begin(), secondary_key_columns_dup.end());
if (secondary_key_expressions)
{
Names secondary_key_columns_dup = secondary_key_expressions->getRequiredColumns();
key_columns.insert(secondary_key_columns_dup.begin(), secondary_key_columns_dup.end());
}
/// Force sign column for Collapsing mode
if (merging_params.mode == MergeTreeData::MergingParams::Collapsing)