On Tue, Feb 13, 2024 at 4:17 PM veem v <veema0...@gmail.com> wrote: [sni[]
> One question here, if we have defined one column as a fixed length data > type "integer" and slowly we noticed the length of data keeps increasing > (in case of a sequence generated PK column which will keep increasing), and > we want to alter the column to "bigint" now. In such scenario, will it > append/pad the additional spaces to all the existing values which were > already stored with integer type initially in the table. And that would be > then an increase to the existing table storage. Please correct me if I'm > wrong. > ALTER TABLE foo ALTER COLUMN bar BIGINT; rewrites the whole table. Do yourself a favor, and start with BIGINT.
