mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-18 05:32:52 +00:00
77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
#include "ODBCBlockOutputStream.h"
|
|
|
|
#include <Common/hex.h>
|
|
#include <common/logger_useful.h>
|
|
#include <Core/Field.h>
|
|
#include <common/LocalDate.h>
|
|
#include <common/LocalDateTime.h>
|
|
#include <Parsers/ASTInsertQuery.h>
|
|
#include <Parsers/ASTExpressionList.h>
|
|
#include <Parsers/ASTIdentifier.h>
|
|
#include "getIdentifierQuote.h"
|
|
#include <IO/WriteHelpers.h>
|
|
#include <IO/Operators.h>
|
|
#include <Formats/FormatFactory.h>
|
|
|
|
|
|
namespace DB
|
|
{
|
|
|
|
namespace
|
|
{
|
|
using ValueType = ExternalResultDescription::ValueType;
|
|
|
|
std::string getInsertQuery(const std::string & db_name, const std::string & table_name, const ColumnsWithTypeAndName & columns, IdentifierQuotingStyle quoting)
|
|
{
|
|
ASTInsertQuery query;
|
|
query.table_id.database_name = db_name;
|
|
query.table_id.table_name = table_name;
|
|
query.columns = std::make_shared<ASTExpressionList>(',');
|
|
query.children.push_back(query.columns);
|
|
for (const auto & column : columns)
|
|
query.columns->children.emplace_back(std::make_shared<ASTIdentifier>(column.name));
|
|
|
|
WriteBufferFromOwnString buf;
|
|
IAST::FormatSettings settings(buf, true);
|
|
settings.always_quote_identifiers = true;
|
|
settings.identifier_quoting_style = quoting;
|
|
query.IAST::format(settings);
|
|
return buf.str();
|
|
}
|
|
}
|
|
|
|
ODBCBlockOutputStream::ODBCBlockOutputStream(nanodbc::ConnectionHolderPtr connection_holder_,
|
|
const std::string & remote_database_name_,
|
|
const std::string & remote_table_name_,
|
|
const Block & sample_block_,
|
|
ContextPtr local_context_,
|
|
IdentifierQuotingStyle quoting_)
|
|
: log(&Poco::Logger::get("ODBCBlockOutputStream"))
|
|
, connection_holder(std::move(connection_holder_))
|
|
, db_name(remote_database_name_)
|
|
, table_name(remote_table_name_)
|
|
, sample_block(sample_block_)
|
|
, local_context(local_context_)
|
|
, quoting(quoting_)
|
|
{
|
|
description.init(sample_block);
|
|
}
|
|
|
|
Block ODBCBlockOutputStream::getHeader() const
|
|
{
|
|
return sample_block;
|
|
}
|
|
|
|
void ODBCBlockOutputStream::write(const Block & block)
|
|
{
|
|
WriteBufferFromOwnString values_buf;
|
|
auto writer = FormatFactory::instance().getOutputStream("Values", values_buf, sample_block, local_context);
|
|
writer->write(block);
|
|
|
|
std::string query = getInsertQuery(db_name, table_name, block.getColumnsWithTypeAndName(), quoting) + values_buf.str();
|
|
execute<void>(connection_holder,
|
|
[&](nanodbc::connection & connection) { execute(connection, query); });
|
|
}
|
|
|
|
}
|