> On Feb 7, 2017, at 12:44 PM, Alvaro Herrera <alvhe...@2ndquadrant.com> wrote: > > Jonathan S. Katz wrote: > >> Below is the draft of the press release for the update this Thursday: >> >> https://git.postgresql.org/gitweb/?p=press.git;a=blob;f=update_releases/current/20170209updaterelease.md;h=0cccb8986c08527f65f13d704a78c36bb8de7fef;hb=afc01091dea8a1597e8e21430edc3908c581ce0c >> >> <https://git.postgresql.org/gitweb/?p=press.git;a=blob;f=update_releases/current/20170209updaterelease.md;h=0cccb8986c08527f65f13d704a78c36bb8de7fef;hb=afc01091dea8a1597e8e21430edc3908c581ce0c> >> >> As there are a lot of updates I did my best to consolidate some of the >> bullet points and as usual, people are directed to the release notes. >> Please let me know if there are any inaccuracies so I can fix them ASAP. > > Please do post the proposed text on list for ease of review. I wasn't > looking at the text, so I wouldn't have noticed this if Emre hadn't > replied: > > 76 If you believe you have been affected by the aforementioned CREATE INDEX > CONCURRENTLY bug, you will have to rebuild the index. An example of > rebuilding an index: > 77 > 78 BEGIN; > 79 DROP INDEX bad_index_name; > 80 CREATE INDEX CONCURRENTLY bad_index_name ON table_name (column_name); > /* replace names with your original index definition */ > 81 COMMIT; > > This is not a good recipe, because using CREATE INDEX CONCURRENTLY in > the same transaction that grabs an exclusive lock on the table for the > DROP INDEX is pointless -- the access exclusive lock is held until the > end of the transaction, and CIC does not work inside a transaction > anyway so it'd raise an ERROR and rollback the DROP INDEX. So the user > would probably drop the BEGIN/COMMIT sequence in order for this to work > in the first place. (The other option is to use CREATE INDEX not > concurrent, but that would lock the table for a very long time).
Thanks for the clarification. I have updated the recipe along with Emre’s comments here: https://git.postgresql.org/gitweb/?p=press.git;a=blob;f=update_releases/current/20170209updaterelease.txt;h=f90d4716f240dbea4cca647b099f79865545b633;hb=d85498c284275bcab4752b91476834de780648b8 <https://git.postgresql.org/gitweb/?p=press.git;a=blob;f=update_releases/current/20170209updaterelease.txt;h=f90d4716f240dbea4cca647b099f79865545b633;hb=d85498c284275bcab4752b91476834de780648b8> Thanks! Jonathan
