Update "encode" documentation to mention that 'escape' only changes null

bytes and backslashes, remove "ASCII" mention.  Backpatch to 8.2.X.

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index ab179588c7e2a169aa9a4e5157b384c4ed97a6b7..b8be507f2df34457bbbc9fbd527b93432871f205 100644 (file)
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -1,4 +1,4 @@
-
+
 
  
   Functions and Operators
@@ -1356,8 +1356,10 @@
        
        text
        
-        Encode binary data to ASCII-only representation.  Supported
+        Encode binary data to different representation.  Supported
         types are: base64, hex, escape.
+        Escape merely outputs null bytes as \000 and
+        doubles backslashes.
        
        encode( E'123\\000\\001', 'base64')
        MTIzAAE=