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Merge pull request #6043 from 4ertus2/ast

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Enable 'input_format_defaults_for_omitted_fields' by default
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alexey-milovidov 2019-07-20 00:42:01 +03:00 committed by GitHub
commit 175c4655d8
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6 changed files with 21 additions and 6 deletions
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5
dbms/programs/server/TCPHandler.cpp
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@ -384,7 +384,10 @@ void TCPHandler::processInsertQuery(const Settings & global_settings)
{
const auto & db_and_table = query_context->getInsertionTable();
if (query_context->getSettingsRef().input_format_defaults_for_omitted_fields)
sendTableColumns(query_context->getTable(db_and_table.first, db_and_table.second)->getColumns());
{
if (!db_and_table.second.empty())
sendTableColumns(query_context->getTable(db_and_table.first, db_and_table.second)->getColumns());
}
}
/// Send block to the client - table structure.

2
dbms/src/Core/Settings.h
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@ -170,7 +170,7 @@ struct Settings : public SettingsCollection<Settings>
M(SettingBool, input_format_skip_unknown_fields, false, "Skip columns with unknown names from input data (it works for JSONEachRow, CSVWithNames, TSVWithNames and TSKV formats).") \
M(SettingBool, input_format_with_names_use_header, false, "For TSVWithNames and CSVWithNames input formats this controls whether format parser is to assume that column data appear in the input exactly as they are specified in the header.") \
M(SettingBool, input_format_import_nested_json, false, "Map nested JSON data to nested tables (it works for JSONEachRow format).") \
M(SettingBool, input_format_defaults_for_omitted_fields, false, "For input data calculate default expressions for omitted fields (it works for JSONEachRow format).") \
M(SettingBool, input_format_defaults_for_omitted_fields, true, "For input data calculate default expressions for omitted fields (it works for JSONEachRow format).") \
\
M(SettingBool, input_format_values_interpret_expressions, true, "For Values format: if field could not be parsed by streaming parser, run SQL parser and try to interpret it as SQL expression.") \
\

2
dbms/src/DataStreams/InputStreamFromASTInsertQuery.cpp
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@ -51,7 +51,7 @@ InputStreamFromASTInsertQuery::InputStreamFromASTInsertQuery(
res_stream = context.getInputFormat(format, *input_buffer_contacenated, header, context.getSettings().max_insert_block_size);
if (context.getSettingsRef().input_format_defaults_for_omitted_fields)
if (context.getSettingsRef().input_format_defaults_for_omitted_fields && !ast_insert_query->table.empty())
{
StoragePtr storage = context.getTable(ast_insert_query->database, ast_insert_query->table);
auto column_defaults = storage->getColumns().getDefaults();

5
dbms/src/DataStreams/RemoteBlockOutputStream.cpp
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@ -50,6 +50,11 @@ RemoteBlockOutputStream::RemoteBlockOutputStream(Connection & connection_,
if (auto log_queue = CurrentThread::getInternalTextLogsQueue())
log_queue->pushBlock(std::move(packet.block));
}
else if (Protocol::Server::TableColumns == packet.type)
{
/// Server could attach ColumnsDescription in front of stream for column defaults. There's no need to pass it through cause
/// client's already got this information for remote table. Ignore.
}
else
throw NetException("Unexpected packet from server (expected Data or Exception, got "
+ String(Protocol::Server::toString(packet.type)) + ")", ErrorCodes::UNEXPECTED_PACKET_FROM_SERVER);

6
dbms/src/DataStreams/TTLBlockInputStream.cpp
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@ -40,8 +40,10 @@ TTLBlockInputStream::TTLBlockInputStream(
auto it = column_defaults.find(name);
if (it != column_defaults.end())
default_expr_list->children.emplace_back(
setAlias(it->second.expression, it->first));
{
auto expression = it->second.expression->clone();
default_expr_list->children.emplace_back(setAlias(expression, it->first));
}
}
else
new_ttl_infos.columns_ttl.emplace(name, ttl_info);

7
dbms/src/Interpreters/executeQuery.cpp
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@ -247,7 +247,12 @@ static std::tuple<ASTPtr, BlockIO> executeQueryImpl(
res = interpreter->execute();
if (auto * insert_interpreter = typeid_cast<const InterpreterInsertQuery *>(&*interpreter))
context.setInsertionTable(insert_interpreter->getDatabaseTable());
{
/// Save insertion table (not table function). TODO: support remote() table function.
auto db_table = insert_interpreter->getDatabaseTable();
if (!db_table.second.empty())
context.setInsertionTable(std::move(db_table));
}
if (process_list_entry)
{