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Bug#6298 (LIMIT #, -1 no longer works to set start with no end limit)

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With MySQL 3.23 and 4.0, the syntax 'LIMIT N, -1' is accepted, and returns
all the rows located after row N. This behavior, however, is not the
intended result, and defeats the purpose of LIMIT, which is to constrain
the size of a result set.

With MySQL 4.1 and later, this construct is correctly detected as a syntax
error.

This fix does not change the production code, and only adds a new test case
to improve test coverage in this area, to enforce in the test suite the
intended behavior.
This commit is contained in:
malff/marcsql@weblab.(none)
2007-01-03 11:47:01 -07:00
parent ba7a03759b
commit 236000ae66
2 changed files with 26 additions and 0 deletions
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mysql-test/r/select.result
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@ -3611,3 +3611,9 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 range si,ai si 5 NULL 2 Using where
1 SIMPLE t3 eq_ref PRIMARY,ci PRIMARY 4 test.t2.a 1 Using where
DROP TABLE t1,t2,t3;
DROP TABLE IF EXISTS t1;
CREATE TABLE t1(a int);
INSERT into t1 values (1), (2), (3);
SELECT * FROM t1 LIMIT 2, -1;
ERROR 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 '-1' at line 1
DROP TABLE t1;