mariadb/mysql-test/suite/innodb/r/create-index.result
Thirunarayanan B 9ea02a1c09 Bug #18010711 UNIQUE PREFIX INDEX ON BINARY COLUMN:
FAILING ASSERTION: FLEN == LEN

Problem:
       Broken invariant triggered when building a unique index on a
binary column and the input data contains duplicate keys. This was broken
in debug builds only.

Fix:
       Fixed length of the binary datatype can be greater than length of
the shorter prefix on which index is being created.
2014-02-17 13:45:34 +05:30

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#
# Bug #18010711 UNIQUE PREFIX INDEX ON BINARY COLUMN: FAILING
# ASSERTION: FLEN == LEN
#
create table t1 (f1 binary(5)) engine=innodb;
insert into t1 values ('w'), ('w');
create unique index index_t1 on t1(f1(4));
ERROR 23000: Duplicate entry 'w' for key 'index_t1'
drop table t1;