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Support SAMPLE and FINAL together in MergeTree.

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This commit is contained in:
Nikolai Kochetov 2019-11-25 15:49:05 +03:00
parent f770934e60
commit 9b42e9341d
1 changed files with 6 additions and 1 deletions
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7
dbms/src/Storages/MergeTree/MergeTreeDataSelectExecutor.cpp
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@ -458,7 +458,12 @@ Pipes MergeTreeDataSelectExecutor::readFromParts(
/// So, assume that we already have calculated column.
ASTPtr sampling_key_ast = data.getSamplingKeyAST();
if (select.final())
std::make_shared<ASTIdentifier>(sampling_key_ast->getColumnName());
{
auto sampling_column_name = sampling_key_ast->getColumnName();
sampling_key_ast = std::make_shared<ASTIdentifier>(sampling_column_name);
/// We do spoil available_real_columns here, but it is not used later.
available_real_columns.emplace_back(std::move(sampling_column_name));
}
if (has_lower_limit)
{