I am loading 35 million rows of data into an empty MyISAM table. This table
has 1 primary key (AutoInc) and 1 unique index and 2 non-unique indexes.
Is it going to be any faster if I remove the indexes from the table before
loading the data, load the data, then do an Alter Table .. add index ..
Generally, you should find that removing and re-adding the indexes will
speed up your operation.
I do not believe that ALTER TABLE with just index additions will require
a table rebuild, but even if it does, doing a table copy will be a
fairly fast operation (much faster than loading from othe
Hi,
On Sun, Feb 21, 2010 at 1:42 PM, mos wrote:
> I am loading 35 million rows of data into an empty MyISAM table. This table
> has 1 primary key (AutoInc) and 1 unique index and 2 non-unique indexes.
>
> Is it going to be any faster if I remove the indexes from the table before
> loading the dat
Then before loading
alter table table_name disable keys;
load data
alter table table enable keys;
This will enable faster data load and faster index rebuild.
regards
anandkl
On Fri, Feb 26, 2010 at 8:03 AM, Baron Schwartz wrote:
> Hi,
>
> On Sun, Feb 21, 2010 at 1:42 PM, mos wrote:
> > I am
