mysql千万级大表在线加索引

create table tmp like paper_author; ALTER TABLE tmp ADD INDEX ( `PaperID` ) insert into tmp(ooo，...) selectooo,... from paper_author Query OK, 35510600 rows affected (9 min 24.99 sec) Records: 35510600 Duplicates: 0 Warnings: 0 RENAME TAB



create table tmp like paper_author;
ALTER TABLE tmp ADD INDEX ( `PaperID` )

insert into tmp(ooo，...) select ooo,... from paper_author
Query OK, 35510600 rows affected (9 min 24.99 sec)
Records: 35510600 Duplicates: 0 Warnings: 0

RENAME TABLE paper_author TO tmp2, tmp to paper_author;

drop table tmp2;