diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 5752c0f9e75..c37ef80026e 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -1306,11 +1306,12 @@
text
- Remove the longest string containing only the
+ Remove the longest string containing only characters from
characters (a space by default) from the
- start/end/both ends of the string
+ start, end, or both ends (both is the default)
+ of string
- trim(both 'x' from 'xTomxx')
+ trim(both 'xyz' from 'yxTomxx')
Tom
@@ -1382,7 +1383,7 @@
in characters (a space by default)
from the start and end of string
- btrim('xyxtrimyyx', 'xy')
+ btrim('xyxtrimyyx', 'xyz')
trim
@@ -1657,8 +1658,8 @@
characters (a space by default) from the start of
string
- ltrim('zzzytrim', 'xyz')
- trim
+ ltrim('zzzytest', 'xyz')
+ test
@@ -1940,8 +1941,8 @@
characters (a space by default) from the end of
string
- rtrim('trimxxxx', 'x')
- trim
+ rtrim('testxxzx', 'xyz')
+ test
@@ -2985,11 +2986,11 @@
bytea
- Remove the longest string containing only the bytes in
+ Remove the longest string containing only bytes appearing in
bytes from the start
and end of string
- trim(E'\\000'::bytea from E'\\000Tom\\000'::bytea)
+ trim(E'\\000\\001'::bytea from E'\\000Tom\\001'::bytea)
Tom
@@ -3028,11 +3029,11 @@
bytea
- Remove the longest string consisting only of bytes
- in bytes from the start and end of
+ Remove the longest string containing only bytes appearing in
+ bytes from the start and end of
string
- btrim(E'\\000trim\\000'::bytea, E'\\000'::bytea)
+ btrim(E'\\000trim\\001'::bytea, E'\\000\\001'::bytea)
trim