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-rw-r--r--doc/src/sgml/func.sgml26
1 files changed, 15 insertions, 11 deletions
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 672bf5cb708..f81b163bf8b 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -13513,7 +13513,7 @@ NULL baz</literallayout>(3 rows)</entry>
<entry>No</entry>
<entry>input arrays concatenated into array of one higher dimension
(inputs must all have same dimensionality,
- and cannot be empty or NULL)</entry>
+ and cannot be empty or null)</entry>
</row>
<row>
@@ -13537,7 +13537,7 @@ NULL baz</literallayout>(3 rows)</entry>
otherwise the same as the argument data type
</entry>
<entry>Yes</entry>
- <entry>the average (arithmetic mean) of all input values</entry>
+ <entry>the average (arithmetic mean) of all non-null input values</entry>
</row>
<row>
@@ -13665,7 +13665,7 @@ NULL baz</literallayout>(3 rows)</entry>
<type>json</type>
</entry>
<entry>No</entry>
- <entry>aggregates values as a JSON array</entry>
+ <entry>aggregates values, including nulls, as a JSON array</entry>
</row>
<row>
@@ -13682,7 +13682,7 @@ NULL baz</literallayout>(3 rows)</entry>
<type>jsonb</type>
</entry>
<entry>No</entry>
- <entry>aggregates values as a JSON array</entry>
+ <entry>aggregates values, including nulls, as a JSON array</entry>
</row>
<row>
@@ -13699,7 +13699,8 @@ NULL baz</literallayout>(3 rows)</entry>
<type>json</type>
</entry>
<entry>No</entry>
- <entry>aggregates name/value pairs as a JSON object</entry>
+ <entry>aggregates name/value pairs as a JSON object; values can be
+ null, but not names</entry>
</row>
<row>
@@ -13716,7 +13717,8 @@ NULL baz</literallayout>(3 rows)</entry>
<type>jsonb</type>
</entry>
<entry>No</entry>
- <entry>aggregates name/value pairs as a JSON object</entry>
+ <entry>aggregates name/value pairs as a JSON object; values can be
+ null, but not names</entry>
</row>
<row>
@@ -13732,7 +13734,7 @@ NULL baz</literallayout>(3 rows)</entry>
<entry>Yes</entry>
<entry>
maximum value of <replaceable
- class="parameter">expression</replaceable> across all input
+ class="parameter">expression</replaceable> across all non-null input
values
</entry>
</row>
@@ -13750,7 +13752,7 @@ NULL baz</literallayout>(3 rows)</entry>
<entry>Yes</entry>
<entry>
minimum value of <replaceable
- class="parameter">expression</replaceable> across all input
+ class="parameter">expression</replaceable> across all non-null input
values
</entry>
</row>
@@ -13772,7 +13774,7 @@ NULL baz</literallayout>(3 rows)</entry>
same as argument types
</entry>
<entry>No</entry>
- <entry>input values concatenated into a string, separated by delimiter</entry>
+ <entry>non-null input values concatenated into a string, separated by delimiter</entry>
</row>
<row>
@@ -13795,7 +13797,8 @@ NULL baz</literallayout>(3 rows)</entry>
argument data type
</entry>
<entry>Yes</entry>
- <entry>sum of <replaceable class="parameter">expression</replaceable> across all input values</entry>
+ <entry>sum of <replaceable class="parameter">expression</replaceable>
+ across all non-null input values</entry>
</row>
<row>
@@ -13812,7 +13815,8 @@ NULL baz</literallayout>(3 rows)</entry>
<type>xml</type>
</entry>
<entry>No</entry>
- <entry>concatenation of XML values (see also <xref linkend="functions-xml-xmlagg"/>)</entry>
+ <entry>concatenation of non-null XML values
+ (see also <xref linkend="functions-xml-xmlagg"/>)</entry>
</row>
</tbody>
</tgroup>