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fixed aliases for ARRAY JOIN section (required_columns issue) [#CONV-7967]

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This commit is contained in:
Vyacheslav Alipov 2013-07-31 10:06:44 +00:00
parent ef8cd52e73
commit 857063ebf3
1 changed files with 18 additions and 0 deletions
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18
dbms/src/Interpreters/ExpressionAnalyzer.cpp
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@ -1153,7 +1153,25 @@ void ExpressionAnalyzer::getRequiredColumnsImpl(ASTPtr ast, NamesSet & required_
if (ASTIdentifier * node = dynamic_cast<ASTIdentifier *>(&*ast))
{
if (node->kind == ASTIdentifier::Column && !ignored_names.count(node->name))
{
/// Разрешаем алиасы для вложенной таблицы, чтобы в требуемые столбцы попали исходные имена
if (select_query && select_query->array_join_identifier)
{
String maybe_array_joined_nested_table = select_query->array_join_identifier->getAlias();
if (node->name == maybe_array_joined_nested_table
|| DataTypeNested::extractNestedTableName(node->name) == maybe_array_joined_nested_table)
{
String nested_table = select_query->array_join_identifier->getColumnName();
String nested_column = DataTypeNested::extractNestedColumnName(node->name);
String original_name = DataTypeNested::concatenateNestedName(nested_table, nested_column);
required_columns.insert(original_name);
return;
}
}
required_columns.insert(node->name);
}
return;
}