mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-15 19:02:04 +00:00
28 lines
763 B
C++
28 lines
763 B
C++
#pragma once
|
|
|
|
#include <unordered_map>
|
|
#include <string>
|
|
|
|
|
|
namespace DB
|
|
{
|
|
|
|
class Block;
|
|
class Context;
|
|
class NamesAndTypesList;
|
|
struct ColumnDefault;
|
|
|
|
/** Adds three types of columns into block
|
|
* 1. Columns, that are missed inside request, but present in table without defaults (missed columns)
|
|
* 2. Columns, that are missed inside request, but present in table with defaults (columns with default values)
|
|
* 3. Columns that materialized from other columns (materialized columns)
|
|
* All three types of columns are materialized (not constants).
|
|
*/
|
|
Block addMissingDefaults(
|
|
const Block & block,
|
|
const NamesAndTypesList & required_columns,
|
|
const std::unordered_map<std::string, ColumnDefault> & column_defaults,
|
|
const Context & context);
|
|
|
|
}
|