ClickHouse/src/Parsers/ASTInsertQuery.h
2021-08-08 06:30:14 +03:00

59 lines
1.7 KiB
C++

#pragma once
#include <Interpreters/StorageID.h>
#include <Parsers/IAST.h>
namespace DB
{
class ReadBuffer;
/// INSERT query
class ASTInsertQuery : public IAST
{
public:
/// Part of hash
StorageID table_id = StorageID::createEmpty();
ASTPtr columns;
String format;
ASTPtr table_function;
ASTPtr settings_ast;
ASTPtr select;
ASTPtr watch;
/// Data inlined into query
const char * data = nullptr;
const char * end = nullptr;
/// Data from buffer to insert after inlined one - may be nullptr.
ReadBuffer * tail = nullptr;
bool expectNativeData() const { return !data && !tail; }
/// Try to find table function input() in SELECT part
void tryFindInputFunction(ASTPtr & input_function) const;
/** Get the text that identifies this element. */
String getID(char delim) const override { return "InsertQuery" + (delim + table_id.database_name) + delim + table_id.table_name; }
ASTPtr clone() const override
{
auto res = std::make_shared<ASTInsertQuery>(*this);
res->children.clear();
if (columns) { res->columns = columns->clone(); res->children.push_back(res->columns); }
if (select) { res->select = select->clone(); res->children.push_back(res->select); }
if (watch) { res->watch = watch->clone(); res->children.push_back(res->watch); }
if (table_function) { res->table_function = table_function->clone(); res->children.push_back(res->table_function); }
if (settings_ast) { res->settings_ast = settings_ast->clone(); res->children.push_back(res->settings_ast); }
return res;
}
protected:
void formatImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const override;
};
}