<glossdef>
<para>
In reference to a <glossterm linkend="glossary-datum">datum</glossterm>:
- the fact that its value that cannot be broken down into smaller
+ the fact that its value cannot be broken down into smaller
components.
</para>
</glossdef>
<glossterm linkend="glossary-constraint">integrity constraints</glossterm>.
Transactions may be allowed to violate some of the constraints
transiently before it commits, but if such violations are not resolved
- by the time it commits, such transaction is automatically
+ by the time it commits, such a transaction is automatically
<glossterm linkend="glossary-rollback">rolled back</glossterm>.
This is one of the <acronym>ACID</acronym> properties.
</para>
<glossterm>Grant</glossterm>
<glossdef>
<para>
- An <acronym>SQL</acronym> command that is used to allow
- <glossterm linkend="glossary-user">users</glossterm> or
+ An <acronym>SQL</acronym> command that is used to allow a
+ <glossterm linkend="glossary-user">user</glossterm> or
<glossterm linkend="glossary-role">role</glossterm> to access
specific objects within the <glossterm linkend="glossary-database">database</glossterm>.
</para>
<glossdef>
<para>
A <glossterm linkend="glossary-relation">relation</glossterm> that is
- defined in the same way that a a <glossterm linkend="glossary-view">view</glossterm>
+ defined in the same way that a <glossterm linkend="glossary-view">view</glossterm>
is, but stores data in the same way that a
<glossterm linkend="glossary-table">table</glossterm> does. It cannot be
modified via <command>INSERT</command>, <command>UPDATE</command>, or
<glossdef>
<para>
In reference to a <glossterm linkend="glossary-window-function">window function</glossterm>:
- a partition is a user-defined criteria that identifies which neighboring
+ a partition is a user-defined criterion that identifies which neighboring
<glossterm linkend="glossary-tuple">rows</glossterm> can be considered by the
function.
</para>
The system catalog resides in the schema <literal>pg_catalog</literal>.
These tables contain data in internal representation and are
not typically considered useful for user examination;
- a number of user-friendlier <glossterm linkend="glossary-view">views</glossterm>
- also in schema <literal>pg_catalog</literal> offer more convenient access to
+ a number of user-friendlier <glossterm linkend="glossary-view">views</glossterm>,
+ also in schema <literal>pg_catalog</literal>, offer more convenient access to
some of that information, while additional tables and views
exist in schema <literal>information_schema</literal>
(see <xref linkend="information-schema" />) that expose some
each page stores two bits: the first one
(<literal>all-visible</literal>) indicates that all tuples
in the page are visible to all transactions. The second one
- (<literal>all-frozen</literal>) indicate that all tuples
+ (<literal>all-frozen</literal>) indicates that all tuples
in the page are marked frozen.
</para>
</glossdef>
<glossdef>
<para>
A process that saves copies of <glossterm linkend="glossary-wal-file">WAL files</glossterm>
- for the purposes of creating backups or keeping
+ for the purpose of creating backups or keeping
<glossterm linkend="glossary-replica">replicas</glossterm> current.
</para>
<para>
and are written in sequential order, interspersing changes
as they occur in multiple simultaneous sessions.
If the system crashes, the files are read in order, and each of the
- changes is replayed to restore the system to the state as it was
+ changes is replayed to restore the system to the state it was in
before the crash.
</para>
<para>