Subquery limits

Started by Bruce Momjianabout 28 years ago1 messageshackers
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#1Bruce Momjian
bruce@momjian.us

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.

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