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Bug#20577: Partitions: use of to_days() function leads to selection failures

Problem was that the partition containing NULL values
was pruned away, since '2001-01-01' < '2001-02-00' but
TO_DAYS('2001-02-00') is NULL.

Added the NULL partition for RANGE/LIST partitioning on TO_DAYS()
function to be scanned too.

Also fixed a bug that added ALLOW_INVALID_DATES to sql_mode
(SELECT * FROM t WHERE date_col < '1999-99-99' on a RANGE/LIST
partitioned table would add it).
This commit is contained in:
Mattias Jonsson
2009-08-26 12:59:49 +02:00
parent 43851cb811
commit 401fb7c6fb
9 changed files with 624 additions and 12 deletions

View File

@ -745,7 +745,7 @@ a
EXPLAIN PARTITIONS SELECT * FROM t1
WHERE a >= '2004-07-01' AND a <= '2004-09-30';
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p407,p408,p409 ALL NULL NULL NULL NULL 9 Using where
1 SIMPLE t1 p3xx,p407,p408,p409 ALL NULL NULL NULL NULL 18 Using where
SELECT * from t1
WHERE (a >= '2004-07-01' AND a <= '2004-09-30') OR
(a >= '2005-07-01' AND a <= '2005-09-30');
@ -772,7 +772,7 @@ EXPLAIN PARTITIONS SELECT * from t1
WHERE (a >= '2004-07-01' AND a <= '2004-09-30') OR
(a >= '2005-07-01' AND a <= '2005-09-30');
id select_type table partitions type possible_keys key key_len ref rows Extra
1 SIMPLE t1 p407,p408,p409,p507,p508,p509 ALL NULL NULL NULL NULL 18 Using where
1 SIMPLE t1 p3xx,p407,p408,p409,p507,p508,p509 ALL NULL NULL NULL NULL 27 Using where
DROP TABLE t1;
create table t1 (a int);
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);