mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-16 03:12:43 +00:00
16 lines
301 B
C++
16 lines
301 B
C++
#pragma once
|
|
|
|
#include <base/types.h>
|
|
|
|
namespace DB
|
|
{
|
|
/// Algorithm of Merge.
|
|
enum class MergeAlgorithm
|
|
{
|
|
Undecided, /// Not running yet
|
|
Horizontal, /// per-row merge of all columns
|
|
Vertical /// per-row merge of PK and secondary indices columns, per-column gather for non-PK columns
|
|
};
|
|
|
|
}
|