This reduces the risk of dropped statistics data on older platforms whose default receive buffer size is less than that. Allow server options related to memory and file sizes to be specified in units of bytes Beena Emerson. These functions truncated, rather than rounded, when converting a floating-point value to integer microseconds; that could cause unexpectedly off-by-one results. This is useful after getting an unexpected error — you no longer need to adjust the VERBOSITY variable and recreate the failure in order to see error fields that are not shown by default. The meaning of the second argument the dimension selector has been changed to make it predictable which value is selected even when dealing with cubes of varying dimensionalities. Overhaul documentation build process Alexander Lakhin. An administrator might therefore believe that setting the password to empty is equivalent to disabling password login. 
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Now it compares the WHERE conditions to applicable foreign key constraints and produces better estimates. This led to visible failures in some cases, notably when there are row-level triggers on a foreign child table.
By default, panic instead of retrying after fsync failure, to avoid possible data corruption Craig Ringer, Thomas Munro. Floating-point timestamps have few advantages and have not been the default since PostgreSQL postgersql.
The new code for taking the existence of a foreign key relationship into account did the wrong thing in these cases, making the estimates worse not better than the pre Formerly, anti-wraparound vacuum had to visit every page of a table, even pages where there was nothing to do.
Such a problem would persist until the index was dropped and rebuilt. Therefore, we now recommend configurations in which no untrusted schemas appear in one's search path. The "all" keyword does not match "replication". This should greatly reduce the cost of maintaining large tables containing mostly-unchanging data. Channel binding is intended to prevent man-in-the-middle attacks, but SCRAM cannot prevent them unless it can be forced to be active.
Such values will now always print the same as they would in a simple float8 column, and be accepted the same way on input. Specifically, ldapsearchfilter allows pattern matching using combinations of LDAP attributes. Rename red-black tree support functions to use rbt prefix not rb prefix Tom Lane.
A previously unrecognized source of these failures is creation postgreslq thread stacks for a process's default thread pool. This behavior is required by the SQL standard. Similarly, the --unencrypted option has been removed from createuser.
Also, the changes described in the second changelog entry below may cause functions used in index expressions or materialized views to fail during auto-analyze, or when reloading from a dump. Normally these files are cleaned up after the transaction's commit or abort record arrives; but if no such record is ever seen, the removal code misbehaved.
PostgreSQL 官方 YUM 源安裝
If a user-defined opclass is the subtype opclass of a user-defined range type, related objects were dumped in the wrong order, producing an unrestorable dump. The reported problem involved leaking an error report during PQresetbut there might be related cases. If both levels of nestloop needed to pass the same variable into their right-hand sides, an incorrect plan would be generated. In those jurisdictions, legally standard time is observed in summer, and daylight savings time in winter, so that the daylight savings offset is one hour behind standard time not one hour ahead.
Postgres Changelog - All Versions
Do not forget to include the template0 and template1 databases, or the vulnerability will still exist in databases you create postgressl. Include each major release branch's release notes in the documentation for only that branch, rather than that branch and all later ones Tom Lane.
The ownership change should propagate to such sequences as well, but this was missed for foreign tables. In the worst case of a small heavily-contended table, VACUUM could incorrectly report that the table contained no tuples, leading to very bad planning choices.
Add a string freeing function to ecpg 's pgtypes library, so that cross-module memory management problems can be avoided on Windows Takayuki Tsunakawa. It is enabled via configure option --with-icu.
Previously it reported the estimated number of heap tuples, which might be inaccurate, and is certainly wrong if the index is partial. The underlying failure to handle opclass dependencies might manifest in other cases too, but this is the only known case.
Add the ability to logically replicate tables to standby servers Petr Jelinek. This fixes various issues; the only one likely to be user-visible is that the postgeesql DST rules for a POSIX-style zone name, if no posixrules file exists in the timezone data directory, now match current US law rather than what it was a dozen years ago.
Report the address and port number of each listening socket in the server log during postmaster startup Tom Lane. This is known as quorum postgrssql.
Add a version of jsonb 's delete operator that takes an array of keys to delete Magnus Hagander.
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