From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | Bruce Momjian <bruce(at)momjian(dot)us> |
Cc: | Gregory Stark <stark(at)enterprisedb(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Negative LIMIT and OFFSET? |
Date: | 2007-12-17 04:54:51 |
Message-ID: | 5443.1197867291@sss.pgh.pa.us |
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Bruce Momjian <bruce(at)momjian(dot)us> writes:
> Since we got LIMIT/OFFSET from MySQL, would someone tell us how MySQL
> behaves in these cases?
Not very well, at least not in mysql 5.0.45:
mysql> select * from t limit -2;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-2' at line 1
mysql> select * from t limit 2 offset -2;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-2' at line 1
This behavior suggests that they can't even deal with LIMIT/OFFSET
values that aren't simple integer literals ...
regards, tom lane
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