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#include "clickhouse_config.h"
#if USE_MYSQL
#error #include <Processors/Sources/MySQLSource.h>
#include <Interpreters/Context.h>
#include <Interpreters/evaluateConstantExpression.h>
#include <Parsers/ASTFunction.h>
#include <Storages/MySQL/MySQLSettings.h>
#include <Storages/MySQL/MySQLHelpers.h>
#include <TableFunctions/ITableFunction.h>
#include <TableFunctions/TableFunctionFactory.h>
#error #include <TableFunctions/TableFunctionMySQL.h>
#include <Common/Exception.h>
#include <Common/parseAddress.h>
#include <Common/quoteString.h>
#include "registerTableFunctions.h"
#include <Databases/MySQL/DatabaseMySQL.h>
#include <Common/parseRemoteDescription.h>
namespace DB
{
namespace ErrorCodes
{
extern const int LOGICAL_ERROR;
}
void TableFunctionMySQL::parseArguments(const ASTPtr & ast_function, ContextPtr context)
{
const auto & args_func = ast_function->as<ASTFunction &>();
if (!args_func.arguments)
throw Exception(ErrorCodes::LOGICAL_ERROR, "Table function 'mysql' must have arguments.");
auto & args = args_func.arguments->children;
MySQLSettings mysql_settings;
const auto & settings = context->getSettingsRef();
mysql_settings.connect_timeout = settings.external_storage_connect_timeout_sec;
mysql_settings.read_write_timeout = settings.external_storage_rw_timeout_sec;
for (auto * it = args.begin(); it != args.end(); ++it)
{
const ASTSetQuery * settings_ast = (*it)->as<ASTSetQuery>();
if (settings_ast)
{
mysql_settings.loadFromQuery(*settings_ast);
args.erase(it);
break;
}
}
configuration = StorageMySQL::getConfiguration(args, context, mysql_settings);
pool.emplace(createMySQLPoolWithFailover(*configuration, mysql_settings));
}
ColumnsDescription TableFunctionMySQL::getActualTableStructure(ContextPtr context, bool /*is_insert_query*/) const
{
return StorageMySQL::getTableStructureFromData(*pool, configuration->database, configuration->table, context);
}
StoragePtr TableFunctionMySQL::executeImpl(
const ASTPtr & /*ast_function*/,
ContextPtr context,
const std::string & table_name,
ColumnsDescription cached_columns,
bool /*is_insert_query*/) const
{
auto res = std::make_shared<StorageMySQL>(
StorageID(getDatabaseName(), table_name),
std::move(*pool),
configuration->database,
configuration->table,
configuration->replace_query,
configuration->on_duplicate_clause,
cached_columns,
ConstraintsDescription{},
String{},
context,
MySQLSettings{});
pool.reset();
res->startup();
return res;
}
void registerTableFunctionMySQL(TableFunctionFactory & factory)
{
factory.registerFunction<TableFunctionMySQL>();
}
}
#endif
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