diff options
Diffstat (limited to 'doc/src/sgml/ref/create_aggregate.sgml')
| -rw-r--r-- | doc/src/sgml/ref/create_aggregate.sgml | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/doc/src/sgml/ref/create_aggregate.sgml b/doc/src/sgml/ref/create_aggregate.sgml index 4a8cee80574..a4aaae876ec 100644 --- a/doc/src/sgml/ref/create_aggregate.sgml +++ b/doc/src/sgml/ref/create_aggregate.sgml @@ -91,7 +91,7 @@ CREATE AGGREGATE <replaceable class="parameter">name</replaceable> ( <command>CREATE AGGREGATE</command> defines a new aggregate function. Some basic and commonly-used aggregate functions are included with the distribution; they are documented in <xref - linkend="functions-aggregate">. If one defines new types or needs + linkend="functions-aggregate"/>. If one defines new types or needs an aggregate function not already provided, then <command>CREATE AGGREGATE</command> can be used to provide the desired features. </para> @@ -110,7 +110,7 @@ CREATE AGGREGATE <replaceable class="parameter">name</replaceable> ( the name and input data type(s) of every ordinary function in the same schema. This behavior is identical to overloading of ordinary function names - (see <xref linkend="sql-createfunction">). + (see <xref linkend="sql-createfunction"/>). </para> <para> @@ -199,7 +199,7 @@ CREATE AGGREGATE <replaceable class="parameter">name</replaceable> ( <para> An aggregate can optionally support <firstterm>moving-aggregate mode</firstterm>, - as described in <xref linkend="xaggr-moving-aggregates">. This requires + as described in <xref linkend="xaggr-moving-aggregates"/>. This requires specifying the <literal>MSFUNC</literal>, <literal>MINVFUNC</literal>, and <literal>MSTYPE</literal> parameters, and optionally the <literal>MSPACE</literal>, <literal>MFINALFUNC</literal>, @@ -228,7 +228,7 @@ CREATE AGGREGATE <replaceable class="parameter">name</replaceable> ( <para> An aggregate can optionally support <firstterm>partial aggregation</firstterm>, - as described in <xref linkend="xaggr-partial-aggregates">. + as described in <xref linkend="xaggr-partial-aggregates"/>. This requires specifying the <literal>COMBINEFUNC</literal> parameter. If the <replaceable class="parameter">state_data_type</replaceable> is <type>internal</type>, it's usually also appropriate to provide the @@ -379,7 +379,7 @@ SELECT col FROM tab ORDER BY col USING sortop LIMIT 1; The planner uses this value to estimate the memory required for a grouped aggregate query. The planner will consider using hash aggregation for such a query only if the hash table is estimated to fit - in <xref linkend="guc-work-mem">; therefore, large values of this + in <xref linkend="guc-work-mem"/>; therefore, large values of this parameter discourage use of hash aggregation. </para> </listitem> @@ -426,7 +426,7 @@ SELECT col FROM tab ORDER BY col USING sortop LIMIT 1; that does not modify its arguments. <literal>READ_ONLY</literal> indicates it does not; the other two values indicate that it may change the transition state value. See <xref linkend="sql-createaggregate-notes" - endterm="sql-createaggregate-notes-title"> below for more detail. The + endterm="sql-createaggregate-notes-title"/> below for more detail. The default is <literal>READ_ONLY</literal>, except for ordered-set aggregates, for which the default is <literal>READ_WRITE</literal>. </para> @@ -623,7 +623,7 @@ SELECT col FROM tab ORDER BY col USING sortop LIMIT 1; <para> The meanings of <literal>PARALLEL SAFE</literal>, <literal>PARALLEL RESTRICTED</literal>, and <literal>PARALLEL UNSAFE</literal> are the same as - in <xref linkend="sql-createfunction">. An aggregate will not be + in <xref linkend="sql-createfunction"/>. An aggregate will not be considered for parallelization if it is marked <literal>PARALLEL UNSAFE</literal> (which is the default!) or <literal>PARALLEL RESTRICTED</literal>. Note that the parallel-safety markings of the aggregate's support @@ -773,7 +773,7 @@ SELECT col FROM tab ORDER BY col USING sortop LIMIT 1; <title>Examples</title> <para> - See <xref linkend="xaggr">. + See <xref linkend="xaggr"/>. </para> </refsect1> @@ -791,8 +791,8 @@ SELECT col FROM tab ORDER BY col USING sortop LIMIT 1; <title>See Also</title> <simplelist type="inline"> - <member><xref linkend="sql-alteraggregate"></member> - <member><xref linkend="sql-dropaggregate"></member> + <member><xref linkend="sql-alteraggregate"/></member> + <member><xref linkend="sql-dropaggregate"/></member> </simplelist> </refsect1> </refentry> |