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39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
#include <Parsers/ASTSubquery.h>
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#include <IO/WriteHelpers.h>
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namespace DB
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{
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void ASTSubquery::appendColumnNameImpl(WriteBuffer & ostr) const
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{
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/// This is a hack. We use alias, if available, because otherwise tree could change during analysis.
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if (!alias.empty())
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{
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writeString(alias, ostr);
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}
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else
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{
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Hash hash = getTreeHash();
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writeCString("__subquery_", ostr);
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writeText(hash.first, ostr);
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ostr.write('_');
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writeText(hash.second, ostr);
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}
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}
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void ASTSubquery::formatImplWithoutAlias(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const
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{
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std::string indent_str = settings.one_line ? "" : std::string(4u * frame.indent, ' ');
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std::string nl_or_nothing = settings.one_line ? "" : "\n";
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settings.ostr << nl_or_nothing << indent_str << "(" << nl_or_nothing;
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FormatStateStacked frame_nested = frame;
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frame_nested.need_parens = false;
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++frame_nested.indent;
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children[0]->formatImpl(settings, state, frame_nested);
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settings.ostr << nl_or_nothing << indent_str << ")";
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}
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}
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