ClickHouse/dbms/Interpreters/InterpreterInsertQuery.h
Ivan 97f2a2213e
Move all folders inside /dbms one level up (#9974)
* Move some code outside dbms/src folder
* Fix paths
2020-04-02 02:51:21 +03:00

47 lines
1.2 KiB
C++

#pragma once
#include <DataStreams/IBlockOutputStream.h>
#include <DataStreams/BlockIO.h>
#include <Interpreters/Context.h>
#include <Interpreters/IInterpreter.h>
#include <Parsers/ASTInsertQuery.h>
namespace DB
{
/** Interprets the INSERT query.
*/
class InterpreterInsertQuery : public IInterpreter
{
public:
InterpreterInsertQuery(
const ASTPtr & query_ptr_,
const Context & context_,
bool allow_materialized_ = false,
bool no_squash_ = false,
bool no_destination_ = false);
/** Prepare a request for execution. Return block streams
* - the stream into which you can write data to execute the query, if INSERT;
* - the stream from which you can read the result of the query, if SELECT and similar;
* Or nothing if the request INSERT SELECT (self-sufficient query - does not accept the input data, does not return the result).
*/
BlockIO execute() override;
StorageID getDatabaseTable() const;
private:
StoragePtr getTable(ASTInsertQuery & query);
Block getSampleBlock(const ASTInsertQuery & query, const StoragePtr & table);
ASTPtr query_ptr;
const Context & context;
const bool allow_materialized;
const bool no_squash;
const bool no_destination;
};
}