diff options
| author | unknown <mikael/pappa@dator5.(none)> | 2006-09-30 17:38:15 -0400 |
|---|---|---|
| committer | unknown <mikael/pappa@dator5.(none)> | 2006-09-30 17:38:15 -0400 |
| commit | 417c38db9cf5d94409cbc50f4e2b87345a915e58 (patch) | |
| tree | 1cb1ca34559e834f40b5625962fae0569aa7a1f5 /sql/item.h | |
| parent | dc9613ca36c5cf45d43b806eccf1e7368ad076b1 (diff) | |
| download | mariadb-git-417c38db9cf5d94409cbc50f4e2b87345a915e58.tar.gz | |
BUG#18198: Partition function handling
Review fixes
mysql-test/r/partition_range.result:
New test cases
mysql-test/t/partition_hash.test:
New test cases
mysql-test/t/partition_range.test:
New test cases
sql/item.h:
Review fixes
sql/partition_info.cc:
Review fixes
sql/sql_partition.cc:
Review fixes
Diffstat (limited to 'sql/item.h')
| -rw-r--r-- | sql/item.h | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/sql/item.h b/sql/item.h index 1f5324f33be..8799fa07eb7 100644 --- a/sql/item.h +++ b/sql/item.h @@ -831,12 +831,20 @@ public: Check if a partition function is allowed SYNOPSIS check_partition_func_processor() - int_arg Return argument + int_arg Ignored RETURN VALUE - 0 + TRUE Partition function not accepted + FALSE Partition function accepted + DESCRIPTION check_partition_func_processor is used to check if a partition function - uses an allowed function. The default is that an item is not allowed + uses an allowed function. An allowed function will always ensure that + X=Y guarantees that also part_function(X)=part_function(Y) where X is + a set of partition fields and so is Y. The problems comes mainly from + character sets where two equal strings can be quite unequal. E.g. the + german character for double s is equal to 2 s. + + The default is that an item is not allowed in a partition function. However all mathematical functions, string manipulation functions, date functions are allowed. Allowed functions can never depend on server version, they cannot depend on anything |