* Track statement planning and execution times as well as resource
* usage across a whole database cluster.
*
- * Execution costs are totalled for each distinct source query, and kept in
+ * Execution costs are totaled for each distinct source query, and kept in
* a shared hashtable. (We track only as many distinct queries as will fit
* in the designated amount of shared memory.)
*
-
Backup Manifest Toplevel Object
+
Backup Manifest Top<span class="marked">-</span>level Object
The backup manifest JSON document contains the following keys.
Normally, the Path key will be present. The
associated string value is the path of the file relative to the root
of the backup directory. Files located in a user-defined tablespace
- will have paths whose first two components are pg_tblspc and the OID
+ will have paths whose first two components are pg_tblspc and the OID
of the tablespace. If the path is not a string that is legal in UTF-8,
or if the user requests that encoded paths be used for all files, then
the Encoded-Path key will be present instead. This
false.
Generally, this should not be set true for extensions that could
allow access to otherwise-superuser-only abilities, such as
- filesystem access.
+ file system access.
generate junk columns of these names.
If the extra expressions are more complex than simple Vars, they
must be run through eval_const_expressions
- before adding them to the targetlist.
+ before adding them to the target list.
Data directory
- The base directory on the filesystem of a
+ The base directory on the file system of a
server that contains all
data files and subdirectories associated with a
database cluster
Tablespace
- A named location on the server filesystem.
+ A named location on the server file system.
All SQL objects
which require storage beyond their definition in the
system catalog
Average number of transactions that are executed per second,
- totalled across all sessions active for a measured run.
+ totaled across all sessions active for a measured run.
This is used as a measure of the performance characteristics of
an instance.
In this case, log messages are sent to the old log file until a
successful log rotation. If
logrotate is
configured to compress the log file and delete it, the server may lose
- the messages logged in this timeframe. To avoid this issue, you can
+ the messages logged in this time frame. To avoid this issue, you can
configure the logging collector to dynamically assign log file names
and use a prerotate script to ignore open log files.
Number of transactions spilled to disk after the memory used by
logical decoding exceeds logical_decoding_work_mem. The
- counter gets incremented both for toplevel transactions and
+ counter gets incremented both for top-level transactions and
subtransactions.
This only affects columns marked as either External or Extended
and applies only to new tuples; there is no effect on existing rows.
By default this parameter is set to allow at least 4 tuples per block,
- which with the default blocksize will be 2040 bytes. Valid values are
- between 128 bytes and the (blocksize - header), by default 8160 bytes.
+ which with the default block size will be 2040 bytes. Valid values are
+ between 128 bytes and the (block size - header), by default 8160 bytes.
Changing this value may not be useful for very short or very long rows.
Note that the default setting is often close to optimal, and
it is possible that setting this parameter could have negative
When is specified,
pg_dump does not check that the foreign
- table is writeable. Therefore, there is no guarantee that the
+ table is writable. Therefore, there is no guarantee that the
results of a foreign table dump can be successfully restored.
backup_manifest contains information about which
write-ahead log records will be needed, and
pg_verifybackup will use that information to
- invoke pg_waldump to parse those write-ahed log
+ invoke pg_waldump to parse those write-ahead log
records. The --quiet flag will be used, so that
pg_waldump will only report errors, without producing
any other output. While this level of verification is sufficient to
Ignore the specified file or directory, which should be expressed
- as a relative pathname, when comparing the list of data files
+ as a relative path name, when comparing the list of data files
actually present in the backup to those listed in the
backup_manifest file. If a directory is
specified, this option affects the entire subtree rooted at that
location. Complaints about extra files, missing files, file size
differences, or checksum mismatches will be suppressed if the
- relative pathname matches the specified pathname. This option
+ relative path name matches the specified path name. This option
can be specified multiple times.
integer
- Computes a gaussian-distributed random integer in [lb,
+ Computes a Gaussian-distributed random integer in [lb,
ub], see below.
projects / postgresql.git / commitdiff