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Mysql handler: Move format check to the handler

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This commit is contained in:
Raúl Marín 2021-08-12 11:29:50 +02:00
parent 918a69e70b
commit f6788fc660
3 changed files with 15 additions and 9 deletions
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11
src/Formats/FormatFactory.cpp
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@ -5,7 +5,6 @@
#include <Interpreters/Context.h>
#include <Core/Settings.h>
#include <DataStreams/MaterializingBlockOutputStream.h>
#include <DataStreams/NativeBlockInputStream.h>
#include <Formats/FormatSettings.h>
#include <Processors/Formats/IRowInputFormat.h>
#include <Processors/Formats/IRowOutputFormat.h>
@ -214,8 +213,8 @@ BlockOutputStreamPtr FormatFactory::getOutputStreamParallelIfPossible(
bool parallel_formatting = settings.output_format_parallel_formatting;
auto format_settings = _format_settings ? *_format_settings : getFormatSettings(context);
if (output_getter && parallel_formatting && getCreators(name).supports_parallel_formatting && !settings.output_format_json_array_of_rows
&& !format_settings.mysql_wire.sequence_id)
if (output_getter && parallel_formatting && getCreators(name).supports_parallel_formatting
&& !settings.output_format_json_array_of_rows)
{
auto formatter_creator = [output_getter, sample, callback, format_settings]
(WriteBuffer & output) -> OutputFormatPtr
@ -315,7 +314,7 @@ OutputFormatPtr FormatFactory::getOutputFormatParallelIfPossible(
const Settings & settings = context->getSettingsRef();
if (settings.output_format_parallel_formatting && getCreators(name).supports_parallel_formatting
&& !settings.output_format_json_array_of_rows && !format_settings.mysql_wire.sequence_id)
&& !settings.output_format_json_array_of_rows)
{
auto formatter_creator = [output_getter, sample, callback, format_settings]
(WriteBuffer & output) -> OutputFormatPtr
@ -353,10 +352,6 @@ OutputFormatPtr FormatFactory::getOutputFormat(
auto format_settings = _format_settings ? *_format_settings : getFormatSettings(context);
/// If we're handling MySQL protocol connection right now then MySQLWire is only allowed output format.
if (format_settings.mysql_wire.sequence_id && (name != "MySQLWire"))
throw Exception(ErrorCodes::UNSUPPORTED_METHOD, "MySQL protocol does not support custom output formats");
/** TODO: Materialization is needed, because formats can use the functions `IDataType`,
* which only work with full columns.
*/

5
src/Server/MySQLHandler.cpp
View File

@ -57,6 +57,7 @@ namespace ErrorCodes
extern const int NOT_IMPLEMENTED;
extern const int MYSQL_CLIENT_INSUFFICIENT_CAPABILITIES;
extern const int SUPPORT_IS_DISABLED;
extern const int UNSUPPORTED_METHOD;
}
@ -352,8 +353,10 @@ void MySQLHandler::comQuery(ReadBuffer & payload)
format_settings.mysql_wire.max_packet_size = max_packet_size;
format_settings.mysql_wire.sequence_id = &sequence_id;
auto set_result_details = [&with_output](const String &, const String &, const String &, const String &)
auto set_result_details = [&with_output](const String &, const String &, const String &format, const String &)
{
if (format != "MySQLWire")
throw Exception(ErrorCodes::UNSUPPORTED_METHOD, "MySQL protocol does not support custom output formats");
with_output = true;
};

8
tests/queries/0_stateless/01176_mysql_client_interactive.expect
View File

@ -34,6 +34,14 @@ expect "ERROR 395 (00000): Code: 395"
send -- "select * from system.one format TSV;\r"
expect "ERROR 1 (00000): Code: 1"
send -- "select * from system.one format JSON;\r"
expect "ERROR 1 (00000): Code: 1"
send -- "select * from system.one format MySQLWire;\r"
expect "| dummy |"
expect "| 0 |"
expect "1 row in set"
send -- "select count(number), sum(number) from numbers(10);\r"
expect "+---------------+-------------+"
expect "| count(number) | sum(number) |"