磁盘空间不足时更改表引擎

Question

my table size is about 9GB and I have 4GBs left of space

When changing the table engine, the table is copied to a temp engine.

Would this process work if I'm low on space?

Answer 1

As far as I know, the temp table created during alter table is kept in the same location as the original file ( usually /var/lib/mysql/{db_name}/{table_name.XXX} ). And for the same reason the alter table should fail with out of disk error( error code: 28).