Allow default permissions on schemas (Matheus Oliveira). For example, pg_switch_xlog() becomes pg_switch_wal(), pg_receivexlog becomes pg_receivewal, and --xlogdir becomes --waldir. Lock promotion can now be controlled through two new server parameters, max_pred_locks_per_relation and max_pred_locks_per_page. Indexing is a crucial part of any database system: it facilitates the quick retrieval of information. Allow creation of temporary replication slots (Petr Jelinek). This is primarily helpful for scripting. The new EXPLAIN option SUMMARY allows explicit control of this. If they return different numbers of rows, the shorter results are extended to match the longest result by adding nulls. (CVE-2020-25694), When psql's \connect command re-uses connection parameters, ensure that all non-overridden parameters from a previous connection string are re-used (Tom Lane), This avoids cases where reconnection might fail due to omission of relevant parameters, such as non-default SSL or GSS options. This shows the file contents, not the currently active settings. Add CREATE SEQUENCE AS command to create a sequence matching an integer data type (Peter Eisentraut). Fix “cache lookup failed for relation 0” failures in logical replication workers (Tom Lane). Allow PL/pgSQL's GET DIAGNOSTICS statement to retrieve values into array elements (Tom Lane). Refer to the PostgreSQL documentationto learn more about improvements and fixes in this minor release. Most server processes followed this practice already, but the archiver process was overlooked. The new functions are pg_ls_logdir() and pg_ls_waldir() and can be executed by non-superusers with the proper permissions. (This also eliminates a performance issue from repeated DLL loads and unloads when a program performs a series of database connections. The PostgreSQL Global Development Group has announced the release of PostgreSQL 10 PostgreSQL 10 released. This allows use of pg_dumpall by non-superusers; without this option, it fails due to inability to read passwords. Allow users to disable pg_stop_backup()'s waiting for all WAL to be archived (David Steele). E.14.1. Add function txid_status() to check if a transaction was committed (Craig Ringer). Add functions to remove and re-add BRIN summarization for BRIN index ranges (Álvaro Herrera). If you are an eager early adopter, then as the PostgreSQL community approaches a new release, keep an eye out for Beta releases. Temporary slots are automatically removed on session exit or error. That previous behavior was not very useful and posed risks of unexpected memory leaks. Major enhancements in PostgreSQL 10 include: Logical replication using publish/subscribe. 16.9k members in the PostgreSQL community. Add table partitioning syntax that automatically creates partition constraints and handles routing of tuple insertions and updates (Amit Langote). See Section 18.6 for general information on migrating to new major releases. In libpq for Windows, call WSAStartup() once per process and WSACleanup() not at all (Tom Lane, Alexander Lakhin), Previously, libpq invoked WSAStartup() at connection start and WSACleanup() at connection cleanup. The stop operation has always done that. A larger WAL segment size allows for fewer archive_command invocations and fewer WAL files to manage. Add variables showing server version and psql version (Fabien Coelho), Improve psql's \d (display relation) and \dD (display domain) commands to show collation, nullable, and default properties in separate columns (Peter Eisentraut). Improve hash index performance (Amit Kapila, Mithun Cy, Ashutosh Sharma), Add SP-GiST index support for INET and CIDR data types (Emre Hasegeli), Add option to allow BRIN index summarization to happen more aggressively (Álvaro Herrera). This is particularly useful for pg_basebackup. Users needing to dump from pre-8.0 servers will need to use dump programs from PostgreSQL 9.6 or earlier. Prevent logical replication workers from sending redundant ping requests (Tom Lane), During “smart” shutdown, don't terminate background processes until all client (foreground) sessions are done (Tom Lane). To obtain the sequence's other properties, applications must look into pg_sequence. ), Fix ecpg library's per-thread initialization logic for Windows (Tom Lane, Alexander Lakhin). Cases involving writable CTEs updating the same table updated by the containing statement, or by another writable CTE, fired BEFORE STATEMENT or AFTER STATEMENT triggers more than once. Remove pg_dump/pg_dumpall support for dumping from pre-8.0 servers (Tom Lane). That's just cosmetic for our purposes, as we continue to select the “fat” mode in pre-v13 branches. Andreas Kretschmer Never. This oversight could lead to failure of subsequent PITR recovery attempts. Add write-ahead logging support to hash indexes (Amit Kapila). The password_encryption server parameter no longer supports off or plain. Allow ENUM values to be renamed (Dagfinn Ilmari Mannsåker). Improved Parallel Query. Reduce pg_ctl's reaction time when waiting for postmaster start/stop (Tom Lane). But note that division of money by int8 now truncates the quotient, like other integer-division cases, while the previous behavior would have rounded. Improved query parallelism. Remove support for floating-point timestamps and intervals (Tom Lane). For more information see Section 37.4.8. The PostgreSQL Project thanks Etienne Stalmans for reporting this problem. Major versions will now increase just the first number, and minor releases will increase just the second number. Allow the specification of a function name without arguments in DDL commands, if it is unique (Peter Eisentraut). Previously the server always waited for the active standbys that appeared first in synchronous_standby_names. Overview. Reduce log chatter about the starting and stopping of launcher subprocesses (Tom Lane), Reduce message verbosity of lower-numbered debug levels controlled by log_min_messages (Robert Haas). This major release of Postgres-XL comes after Postgres-XL 9.5r1, which was based on PostgreSQL 9.5. This simplifies monitoring. Version 0 has been deprecated since 2001. Block DECLARE CURSOR ... WITH HOLD and firing of deferred triggers within index expressions and materialized view queries (Noah Misch). This is useful for checking after an abrupt disconnection whether your previous transaction committed and you just didn't receive the acknowledgment. The new synchronous_standby_names keyword ANY allows waiting for any number of standbys irrespective of their ordering. Get the date and time time right now: select now(); -- date and time Announcing our $3.4M seed round from Gradient Ventures, FundersClub, and Y Combinator Read more → Product Add AFTER trigger transition tables to record changed rows (Kevin Grittner, Thomas Munro). A side effect of this change is that SPI_palloc() and allied functions now require an active SPI connection; they do not degenerate to simple palloc() if there is none. Add function pg_current_logfile() to read logging collector's current stderr and csvlog output file names (Gilles Darold), Report the address and port number of each listening socket in the server log during postmaster startup (Tom Lane). gettimeofday() is still used if clock_gettime() is not available. 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