mirror of
https://github.com/MariaDB/server.git
synced 2025-10-31 10:56:12 +01:00
2682a280c8
storage/innobase/handler/handler0alter.cc: for NEWDATE key_type says unsigned, thus col->prtype says unsigned, but field->flags says signed. Use the same flag for value retrieval that was used for value storage.
77 lines
2.5 KiB
Text
77 lines
2.5 KiB
Text
--source include/have_innodb.inc
|
|
# This is the test for bug 51378. Unique index created
|
|
# through "create index" and "alter table add unique index"
|
|
# interfaces should not be treated as primary index if indexed
|
|
# columns contain one or more column prefix(es) (only prefix/part of
|
|
# the column is indexed)
|
|
# On the other hand, if there is a unique index covers all
|
|
# columns of a table, and they are non-null columns, and
|
|
# full length of the column are indexed, then this index
|
|
# will be created as primary index
|
|
# Following queries test various scenario, no mismatch
|
|
# error message should be printed.
|
|
|
|
# Create a table contains a BLOB column
|
|
create table bug51378 (
|
|
col1 int not null,
|
|
col2 blob not null,
|
|
col3 time not null) engine = innodb;
|
|
|
|
# Create following unique indexes on 'col1' and 'col2(31)'
|
|
# of the table, the index should not be treated as primary
|
|
# key because it indexes only first 31 bytes of col2.
|
|
# Thus it contains "column prefix", and will not be
|
|
# upgraded to primary index.
|
|
# There should not be mismatch message printed in the
|
|
# errorlog
|
|
create unique index idx on bug51378(col1, col2(31));
|
|
|
|
alter table bug51378 add unique index idx2(col1, col2(31));
|
|
|
|
# Unique index on 'col1' and 'col3' will be created as primary index,
|
|
# since the index does not contain column prefix
|
|
create unique index idx3 on bug51378(col1, col3);
|
|
|
|
# Show create table would show idx3 created as unique index, internally,
|
|
# idx3 is treated as primary index both by MySQL and Innodb
|
|
SHOW CREATE TABLE bug51378;
|
|
|
|
# "GEN_CLUST_INDEX" will be re-created as default primary index
|
|
# after idx3 is dropped
|
|
drop index idx3 on bug51378;
|
|
|
|
SHOW CREATE TABLE bug51378;
|
|
|
|
# Or we can add the primary key through alter table interfaces
|
|
alter table bug51378 add primary key idx3(col1, col2(31));
|
|
|
|
SHOW CREATE TABLE bug51378;
|
|
|
|
drop table bug51378;
|
|
|
|
# Or we can create such primary key through create table interfaces
|
|
create table bug51378 (
|
|
col1 int not null,
|
|
col2 blob not null,
|
|
col3 time not null, primary key(col1, col2(31))) engine = innodb;
|
|
|
|
# Unique index on one or more column prefix(es) will be created
|
|
# as non-cluster index
|
|
create unique index idx on bug51378(col1, col2(31));
|
|
|
|
SHOW CREATE TABLE bug51378;
|
|
|
|
drop table bug51378;
|
|
|
|
# If a table has a NULLABLE column, unique index on it will not
|
|
# be treated as primary index.
|
|
create table bug51378 (
|
|
col1 int not null,
|
|
col2 int ) engine = innodb;
|
|
|
|
# This will be created as non-cluster index since col2 is nullable
|
|
create unique index idx on bug51378(col1, col2);
|
|
|
|
SHOW CREATE TABLE bug51378;
|
|
|
|
drop table bug51378;
|