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fix

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This commit is contained in:
feng lv 2020-11-02 06:53:09 +00:00
parent 3dce3c6a21
commit 7159affda8
1 changed files with 15 additions and 4 deletions
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13
src/Parsers/ASTSelectWithUnionQuery.cpp
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@ -40,12 +40,23 @@ void ASTSelectWithUnionQuery::formatQueryImpl(const FormatSettings & settings, F
if (it != list_of_selects->children.begin())
settings.ostr << settings.nl_or_ws << indent_str << (settings.hilite ? hilite_keyword : "") << "UNION "
<< mode_to_str(union_modes[it - list_of_selects->children.begin() - 1]) << (settings.hilite ? hilite_none : "");
if (auto _ = (*it)->as<ASTSelectWithUnionQuery>())
if (auto node = (*it)->as<ASTSelectWithUnionQuery>())
{
// just one child in subquery, () is not need
if (node->list_of_selects->children.size() == 1)
{
if (it != list_of_selects->children.begin())
settings.ostr << settings.nl_or_ws;
node->list_of_selects->children.at(0)->formatImpl(settings, state, frame);
}
// more than one child in subquery
else
{
auto sub_query = std::make_shared<ASTSubquery>();
sub_query->children.push_back(*it);
sub_query->formatImpl(settings, state, frame);
}
}
else
{
if (it != list_of_selects->children.begin())