From: | Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | hackers(at)postgreSQL(dot)org (PostgreSQL-development) |
Subject: | Subquery limits |
Date: | 1998-03-27 21:16:03 |
Message-ID: | 199803272116.QAA20473@candle.pha.pa.us |
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Lists: | pgsql-hackers |
Found this on the MySQL crashme page, http://www.tcx.se/crash-me.html:
Join methods
MySQL EMPRESS mSQL Oracle PostgreSQL SOLID
cross join (same as from
a,b) [yes] [no] [no] [no] [no] [yes]
full outer join [no] [no] [no] [no] [no] [yes]
tables in join 32 63 +64 +64 30 23
left outer join [yes] [no] [no] [no] [no] [yes]
left outer join using [yes] [no] [no] [no] [no] [no]
natural join [no] [no] [no] [no] [no] [no]
natural left outer join [yes] [no] [no] [no] [no] [no]
left outer join odbc style [yes] [no] [no] [no] [no] [yes]
recursive subqueries 49 +64 226 14
^^^^^^^^^^^^^^^^^^^^
right outer join [no] [no] [no] [no] [no] [yes]
ANSI SQL simple joins [yes] [yes] [yes] [yes] [yes]
subqueries [no] [yes] [no] [yes] [yes] [yes]
^^^^^^^^^^
So he did updated it to be accurate. Interesting we support 226 levels
of recursive subqueries. That sounds like a lot.
--
Bruce Momjian | 830 Blythe Avenue
maillist(at)candle(dot)pha(dot)pa(dot)us | Drexel Hill, Pennsylvania 19026
+ If your life is a hard drive, | (610) 353-9879(w)
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