| From: | Justin Pryzby <pryzby(at)telsasoft(dot)com> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | update ALTER TABLE with ATTACH PARTITION lock mode |
| Date: | 2019-10-28 00:12:07 |
| Message-ID: | 20191028001207.GB23808@telsasoft.com |
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| Lists: | pgsql-hackers |
commit #898e5e32 (Allow ATTACH PARTITION with only ShareUpdateExclusiveLock)
updates ddl.sgml but not alter_table.sgml, which only says:
https://www.postgresql.org/docs/12/release-12.html
|An ACCESS EXCLUSIVE lock is held unless explicitly noted.
Find attached patch, which also improve language in several related places.
"Without such a constraint": SUCH could refer to either of the constraints..
"because it is no longer necessary.": In our use case, we prefer to keep the
redundant constraint, to avoid having to add it back if we detach/reattach
again in the future..
| Attachment | Content-Type | Size |
|---|---|---|
| v1-0001-Mention-reduced-locking-strength-of-ATTACH-PARTIT.patch | text/x-diff | 1.0 KB |
| v1-0002-Tweak-language-for-ATTACH-PARTITION-docs.patch | text/x-diff | 4.0 KB |
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