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-rw-r--r--doc/src/sgml/func.sgml5
1 files changed, 3 insertions, 2 deletions
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 4d1f1794ca3..3a21129021a 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -17130,9 +17130,10 @@ $[*] ? (@ like_regex "^[aeiou]" flag "i")
is a JSON path string literal, written according to the rules given in
<xref linkend="datatype-jsonpath"/>. This means in particular that any
backslashes you want to use in the regular expression must be doubled.
- For example, to match strings that contain only digits:
+ For example, to match string values of the root document that contain
+ only digits:
<programlisting>
-$ ? (@ like_regex "^\\d+$")
+$.* ? (@ like_regex "^\\d+$")
</programlisting>
</para>
</sect3>