5 Commits

Author	SHA1	Message	Date
Amos Bird	ea84430864	Get rid of useless std::move to get NRVO ... http://eel.is/c++draft/class.copy.elision#:constructor,copy,elision Some quote: > Speaking of RVO, return std::move(w); prohibits it. It means "use move constructor or fail to compile", whereas return w; means "use RVO, and if you can't, use move constructor, and if you can't, use copy constructor, and if you can't, fail to compile." There is one exception to this rule: ```cpp Block FilterBlockInputStream::removeFilterIfNeed(Block && block) { if (block && remove_filter) block.erase(static_cast<size_t>(filter_column)); return std::move(block); } ``` because references are not eligible for NRVO, which is another rule "always move rvalue references and forward universal references" that takes precedence.	2018-08-27 22:15:48 +08:00
Alexey Milovidov	74a6b0010f	utils/check-style/fix-style #2387	2018-05-18 21:30:02 +03:00
Nikolai Kochetov	f739078ea5	Fixed IAST::clone() implementations which were without children deep copy. [#CLICKHOUSE-3735]	2018-05-18 21:28:11 +03:00
Alexey Milovidov	601ff1eee4	Simplification of AST #1947	2018-02-26 06:37:08 +03:00
Alexey Milovidov	310736cd7e	Moved headers and sources to same place [#CLICKHOUSE-3].	2017-04-01 12:22:42 +03:00