blob: 71a038bcf399e1e1b3cbd9d8ec5638da793e4866 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
|
#pragma once
#include <Analyzer/IQueryTreePass.h>
namespace DB
{
/** Rewrite _shard_num column into shardNum() function.
*
* Example: SELECT _shard_num FROM distributed_table;
* Result: SELECT shardNum() FROM distributed_table;
*/
class ShardNumColumnToFunctionPass final : public IQueryTreePass
{
public:
String getName() override { return "ShardNumColumnToFunctionPass"; }
String getDescription() override { return "Rewrite _shard_num column into shardNum() function"; }
void run(QueryTreeNodePtr query_tree_node, ContextPtr context) override;
};
}
|
