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-rw-r--r--doc/src/sgml/release-9.4.sgml18
1 files changed, 18 insertions, 0 deletions
diff --git a/doc/src/sgml/release-9.4.sgml b/doc/src/sgml/release-9.4.sgml
index c0ead175d30..08307c8f667 100644
--- a/doc/src/sgml/release-9.4.sgml
+++ b/doc/src/sgml/release-9.4.sgml
@@ -164,6 +164,24 @@
<listitem>
<para>
+ Values of type
+ <link linkend="datatype-datetime"><type>timestamp</></link> and
+ <link linkend="datatype-datetime"><type>timestamptz</></link> are now
+ rendered in a string format compliant with ISO 8601 rather than the
+ default output format when converting to or used in
+ <link linkend="datatype-json"><type>JSON</type></link>.
+ (Andrew Dunstan)
+ </para>
+
+ <para>
+ Previously these were rendered in the default text output format
+ for the type, but many JSON processors require timestamps in ISO 8601
+ format.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
Rename <link linkend="SQL-EXPLAIN"><command>EXPLAIN
ANALYZE</></link>'s "total runtime" output to "execution time"
(Tom Lane)