sql - Complicated reorder of MySQL tables -

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i should complicated tables reorder.

****the main table looks like:****

id - data 1 - ... 2 - ... 3 - ... 6 - ... 9 - ... 12 - ...

as can see, there "empty" ids (no 4, 5 between 3 , 6 etc).

****table should like****

id - data 1 - ... 2 - ... 3 - ... 4 - ... 5 - ... 6 - ... 7 - ... etc (without empty ids)

why want make it: server database, includes millions ids. server crashes when maintaining such big numbers. if reorder ids , there won't empty ones, max id in table lower , prevent server crashing.

the complicated thing - table has foreign key references (only id column references atleast) in 4-5 different tables.

my thought is - reorder main table ids without empty ones , create new temp table (oldid, newid) structure , replace oldid's newid's in other related tables.

any ideas how query like? take half hour execute query it's least problem.


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