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ed5b521110
* Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2]. * Less dependencies [#CLICKHOUSE-2].
102 lines
2.4 KiB
C++
102 lines
2.4 KiB
C++
#pragma once
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#include <mysqlxx/Row.h>
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#include <mysqlxx/Null.h>
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#include <mysqlxx/Manip.h>
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#include <DB/Core/Field.h>
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#include <DB/Core/FieldVisitors.h>
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#include <DB/IO/WriteHelpers.h>
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/// This is for Yandex.Metrica code.
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namespace mysqlxx
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{
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inline std::ostream & operator<< (mysqlxx::EscapeManipResult res, const DB::Array & value)
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{
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return res.ostr << DB::applyVisitor(DB::FieldVisitorToString(), DB::Field(value));
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}
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inline std::ostream & operator<< (mysqlxx::QuoteManipResult res, const DB::Array & value)
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{
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throw Poco::Exception("Cannot quote Array with mysqlxx::quote.");
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}
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inline std::istream & operator>> (mysqlxx::UnEscapeManipResult res, DB::Array & value)
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{
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throw Poco::Exception("Cannot unescape Array with mysqlxx::unescape.");
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}
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inline std::istream & operator>> (mysqlxx::UnQuoteManipResult res, DB::Array & value)
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{
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throw Poco::Exception("Cannot unquote Array with mysqlxx::unquote.");
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}
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inline std::ostream & operator<< (mysqlxx::EscapeManipResult res, const DB::Tuple & value)
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{
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return res.ostr << DB::applyVisitor(DB::FieldVisitorToString(), DB::Field(value));
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}
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inline std::ostream & operator<< (mysqlxx::QuoteManipResult res, const DB::Tuple & value)
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{
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throw Poco::Exception("Cannot quote Tuple with mysqlxx::quote.");
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}
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inline std::istream & operator>> (mysqlxx::UnEscapeManipResult res, DB::Tuple & value)
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{
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throw Poco::Exception("Cannot unescape Tuple with mysqlxx::unescape.");
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}
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inline std::istream & operator>> (mysqlxx::UnQuoteManipResult res, DB::Tuple & value)
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{
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throw Poco::Exception("Cannot unquote Tuple with mysqlxx::unquote.");
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}
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}
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namespace DB
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{
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/// Вывести mysqlxx::Row в tab-separated виде
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inline void writeEscapedRow(const mysqlxx::Row & row, WriteBuffer & buf)
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{
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for (size_t i = 0; i < row.size(); ++i)
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{
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if (i != 0)
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buf.write('\t');
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if (unlikely(row[i].isNull()))
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{
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buf.write("\\N", 2);
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continue;
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}
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writeAnyEscapedString<'\''>(row[i].data(), row[i].data() + row[i].length(), buf);
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}
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}
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template <typename T>
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inline void writeText(const mysqlxx::Null<T> & x, WriteBuffer & buf)
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{
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if (x.isNull())
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writeCString("\\N", buf);
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else
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writeText(static_cast<const T &>(x), buf);
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}
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template <typename T>
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inline void writeQuoted(const mysqlxx::Null<T> & x, WriteBuffer & buf)
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{
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if (x.isNull())
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writeCString("NULL", buf);
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else
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writeText(static_cast<const T &>(x), buf);
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}
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}
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