Details
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Bug
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Status: Open (View Workflow)
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Minor
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Resolution: Unresolved
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10.2, 10.3, 10.4, 10.5, 10.6
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None
Description
A federated table can be created with a charset which isn't allowed to be set as client character set, such as ucs2.
However, when such table exists, further queries fail in an unexpected session – and not only queries involving the table itself, but also seemingly unrelated ones.
--source include/have_innodb.inc
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create table t1 (a int); |
install soname 'ha_federatedx'; |
create database fed; |
--eval create table fed.t2 (a int) charset ucs2 engine=federated connection='mysql://root@127.0.0.1:$MASTER_MYPORT/test/t1'
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select * from information_schema.referential_constraints; |
On 10.3-10.6 the query from information_schema fails with ER_WRONG_VALUE_FOR_VAR:
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10.3 1e5ebf37 |
query 'select * from information_schema.referential_constraints' failed: 1231: Received error: 1231 : Variable 'character_set_client' can't be set to the value of 'ucs2' |
On 10.2 it doesn't fail, but causes an even weirder ER_SQL_DISCOVER_ERROR warning:
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10.2 d06205ba |
CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME UNIQUE_CONSTRAINT_CATALOG UNIQUE_CONSTRAINT_SCHEMA UNIQUE_CONSTRAINT_NAME MATCH_OPTION UPDATE_RULE DELETE_RULE TABLE_NAME REFERENCED_TABLE_NAME
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Warnings:
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Warning 1939 Engine PERFORMANCE_SCHEMA failed to discover table `performance_schema`.`accounts` with 'CREATE TABLE accounts(USER CHAR(128) collate utf8_bin default null,HOST CHAR(60) collate utf8_bin default null,CURRENT_CONNECTIONS bigint not null,TOTAL_CONNECTIONS bigint not null)' |
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