From 21de9ae15935c7bd5a40aeb1b93242cc1da446cb Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Sun, 5 May 2019 14:57:17 -0400 Subject: [PATCH] Release notes for 11.3, 10.8, 9.6.13, 9.5.17, 9.4.22. --- doc/src/sgml/release-9.4.sgml | 336 ++++++++++++++++++++++++++++++++++ 1 file changed, 336 insertions(+) diff --git a/doc/src/sgml/release-9.4.sgml b/doc/src/sgml/release-9.4.sgml index ede4e8e5c21..c55c194266a 100644 --- a/doc/src/sgml/release-9.4.sgml +++ b/doc/src/sgml/release-9.4.sgml @@ -1,6 +1,342 @@ + + Release 9.4.22 + + + Release date: + 2019-05-09 + + + + This release contains a variety of fixes from 9.4.21. + For information about new features in the 9.4 major release, see + . + + + + The PostgreSQL community will stop + releasing updates for the 9.4.X release series in February 2020. + Users are encouraged to update to a newer release branch soon. + + + + Migration to Version 9.4.22 + + + A dump/restore is not required for those running 9.4.X. + + + + However, if you are upgrading from a version earlier than 9.4.18, + see . + + + + + Changes + + + + + + Fix behavior for an UPDATE + or DELETE on an inheritance tree or partitioned + table in which every table can be excluded (Amit Langote, Tom Lane) + + + + In such cases, the query did not report the correct set of output + columns when a RETURNING clause was present, and + if there were any statement-level triggers that should be fired, it + didn't fire them. + + + + + + Fix handling of explicit DEFAULT items in + an INSERT ... VALUES command with + multiple VALUES rows, if the target relation is + an updatable view (Amit Langote, Dean Rasheed) + + + + When the updatable view has no default for the column but its + underlying table has one, a single-row INSERT + ... VALUES will use the underlying table's default. + In the multi-row case, however, NULL was always used. Correct it to + act like the single-row case. + + + + + + Fix CREATE VIEW to allow zero-column views + (Ashutosh Sharma) + + + + We should allow this for consistency with allowing zero-column + tables. Since a table can be converted to a view, zero-column views + could be created even with the restriction in place, leading to + dump/reload failures. + + + + + + Accept XML documents as valid values of type xml + when xmloption is set + to content, as required by SQL:2006 and later + (Chapman Flack) + + + + Previously PostgreSQL followed the + SQL:2003 definition, which doesn't allow this. But that creates a + serious problem for dump/restore: there is no setting + of xmloption that will accept all valid XML data. + Hence, switch to the 2006 definition. + + + + pg_dump is also modified to emit + SET xmloption = content while restoring data, + ensuring that dump/restore works even if the prevailing + setting is document. + + + + + + Improve server's startup-time checks for whether a pre-existing + shared memory segment is still in use (Noah Misch) + + + + The postmaster is now more likely to detect that there are still + active processes from a previous postmaster incarnation, even if + the postmaster.pid file has been removed. + + + + + + Fix incompatibility of GIN-index WAL records (Alexander Korotkov) + + + + A fix applied in February's minor releases was not sufficiently + careful about backwards compatibility, leading to problems if a + standby server of that vintage reads GIN page-deletion WAL records + generated by a primary server of a previous minor release. + + + + + + Tolerate EINVAL and ENOSYS + error results, where appropriate, for fsync + and sync_file_range calls + (Thomas Munro, James Sewell) + + + + The previous change to panic on file synchronization failures turns + out to have been excessively paranoid for certain cases where a + failure is predictable and essentially means operation not + supported. + + + + + + Fix failed to build any N-way + joins planner failures with lateral references leading out + of FULL outer joins (Tom Lane) + + + + + + Avoid O(N^2) performance issue when rolling back a transaction that + created many tables (Tomas Vondra) + + + + + + Fix race conditions in management of dynamic shared memory + (Thomas Munro) + + + These could lead to dsa_area could not attach to + segment or cannot unpin a segment that is not + pinned errors. + + + + + + Fix race condition in which a hot-standby postmaster could fail to + shut down after receiving a smart-shutdown request (Tom Lane) + + + + + + Tighten validation of encoded SCRAM-SHA-256 and MD5 passwords + (Jonathan Katz) + + + + A password string that had the right initial characters could be + mistaken for one that is correctly hashed into SCRAM-SHA-256 or MD5 + format. The password would be accepted but would be unusable later. + + + + + + Fix handling of lc_time settings that imply an + encoding different from the database's encoding (Juan José + Santamaría Flecha, Tom Lane) + + + + Localized month or day names that include non-ASCII characters + previously caused unexpected errors or wrong output in such locales. + + + + + + Disallow NaN as a value for floating-point server + parameters (Tom Lane) + + + + + + Rearrange REINDEX processing to avoid assertion + failures when reindexing individual indexes + of pg_class (Andres Freund, Tom Lane) + + + + + + Fix planner assertion failure for parameterized dummy paths (Tom Lane) + + + + + + Insert correct test function in the result + of SnapBuildInitialSnapshot() (Antonin Houska) + + + + No core code cares about this, but some extensions do. + + + + + + Fix intermittent could not reattach to shared memory + session startup failures on Windows (Noah Misch) + + + + A previously unrecognized source of these failures is creation of + thread stacks for a process's default thread pool. Arrange for such + stacks to be allocated in a different memory region. + + + + + + Fix error detection in directory scanning on Windows (Konstantin + Knizhnik) + + + + Errors, such as lack of permissions to read the directory, were not + detected or reported correctly; instead the code silently acted as + though the directory were empty. + + + + + + Fix grammar problems in ecpg (Tom Lane) + + + + A missing semicolon led to mistranslation + of SET variable = + DEFAULT (but + not SET variable TO + DEFAULT) in ecpg programs, + producing syntactically invalid output that the server would reject. + Additionally, in a DROP TYPE or DROP + DOMAIN command that listed multiple type names, only the + first type name was actually processed. + + + + + + Fix possible buffer overruns in ecpg's + processing of include filenames (Liu Huailing, Fei Wu) + + + + + + Avoid crash in contrib/vacuumlo if + an lo_unlink() call failed (Tom Lane) + + + + + + Sync our copy of the timezone library with IANA tzcode release 2019a + (Tom Lane) + + + + This corrects a small bug in zic that + caused it to output an incorrect year-2440 transition in + the Africa/Casablanca zone, and adds support + for zic's new option. + + + + + + Update time zone data files to tzdata + release 2019a for DST law changes in Palestine and Metlakatla, + plus historical corrections for Israel. + + + + Etc/UCT is now a backward-compatibility link + to Etc/UTC, instead of being a separate zone that + generates the abbreviation UCT, which nowadays is + typically a typo. PostgreSQL will still + accept UCT as an input zone abbreviation, but it + won't output it. + + + + + + + + Release 9.4.21