On Wednesday, May 15, 2024, jian he <jian.universal...@gmail.com> wrote:
> On Thu, May 9, 2024 at 12:04 PM Bruce Momjian <br...@momjian.us> wrote: > > > > I have committed the first draft of the PG 17 release notes; you can > > see the results here: > > > > https://momjian.us/pgsql_docs/release-17.html > > > > in section: E.1.2. Migration to Version 17 > > >> Rename I/O block read/write timing statistics columns of > pg_stat_statement (Nazir Bilal Yavuz) > >> This renames "blk_read_time" to "shared_blk_read_time", and > "blk_write_time" to "shared_blk_write_time". > > we only mentioned, pg_stat_statements some columns name changed > in "E.1.2. Migration to Version 17" > but if you look at the release note pg_stat_statements section, > we added a bunch of columns, which are far more incompatibile than > just colunm name changes. > > not sure we need add these in section "E.1.2. Migration to Version 17" > > New columns are not a migration issue since nothing being migrated forward ever referenced them. Its the ones that existing code knows about that we’ve removed (including renames) that matter from a migration perspective. David J.
