mariadb/mysql-test/suite/tokudb/t/card_add_index.test

# test that add index keeps cardinality for older indexes

source include/have_tokudb.inc;

disable_warnings;
drop table if exists tt;
enable_warnings;

create table tt (a int, b int, c int, primary key(a));
insert into tt values (1,0,0),(2,0,0),(3,0,1),(4,0,1);

# test that analyze computes the correct cardinality for the PK
show indexes from tt;
analyze table tt;
show indexes from tt;

# add a key(b)
alter table tt add key (b);
show indexes from tt;
analyze table tt;
show indexes from tt;

# add a key(c)
alter table tt add key (c);
show indexes from tt;
analyze table tt;
show indexes from tt;

# test that cardinality is persistent
flush tables;
show indexes from tt;

drop table tt;