pgsql/src/test/regress/expected (union.out)
От | Tom Lane |
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Тема | pgsql/src/test/regress/expected (union.out) |
Дата | |
Msg-id | 200010051911.e95JBeo22609@hub.org обсуждение исходный текст |
Ответы |
Re: pgsql/src/test/regress/expected (union.out)
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Список | pgsql-committers |
Date: Thursday, October 5, 2000 @ 15:11:39 Author: tgl Update of /home/projects/pgsql/cvsroot/pgsql/src/test/regress/expected from hub.org:/home/projects/pgsql/tmp/cvs-serv22406/src/test/regress/expected Modified Files: union.out ----------------------------- Log Message ----------------------------- Reimplementation of UNION/INTERSECT/EXCEPT. INTERSECT/EXCEPT now meet the SQL92 semantics, including support for ALL option. All three can be used in subqueries and views. DISTINCT and ORDER BY work now in views, too. This rewrite fixes many problems with cross-datatype UNIONs and INSERT/SELECT where the SELECT yields different datatypes than the INSERT needs. I did that by making UNION subqueries and SELECT in INSERT be treated like subselects-in-FROM, thereby allowing an extra level of targetlist where the datatype conversions can be inserted safely. INITDB NEEDED!
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