doc: adjustments for PG 12 release notes

Mostly commit messages, attribution, and text, all suggested by Andres
Freund.

Discussion: https://postgr.es/m/20190520221719[email protected]

diff --git a/doc/src/sgml/release-12.sgml b/doc/src/sgml/release-12.sgml
index b55bc6d667305071cf10d42ee2c97dbd6cdaa426..00acd9fa4fe6902b17a7930b77f7a7ce47049d2d 100644 (file)
--- a/doc/src/sgml/release-12.sgml
+++ b/doc/src/sgml/release-12.sgml
@@ -982,8 +982,6 @@ Author: Bruce Momjian 
 
@@ -1517,7 +1515,7 @@ Author: Michael Paquier 
 
        
         Prevent  from requesting a lock on
-        tables for which it lacks permission (Michaël Paquier)
+        tables for which the user lacks permission (Michaël Paquier)
        
 
        
@@ -1882,9 +1880,10 @@ Author: Peter Eisentraut 
       
 
       
-       Rather than storing a value only at row creation time, generated
-       columns are also modified during updates, and can reference other
-       table columns.
+       The content of generated columns are computed from expressions
+       (including references to other columns in the same table)
+       rather than being specified by INSERT or
+       UPDATE commands.
       
      
 
@@ -2061,7 +2060,7 @@ Author: Peter Eisentraut 
 -->
 
       
-       Allow modifications of system tables using 
+       Allow modifications of system table options using 
        linkend="sql-altertable"/> (Peter Eisentraut)
       
 
@@ -2595,8 +2594,8 @@ Author: Tom Lane 
 -->
 
        
-        Compute behavior based on pgbench's --rate
-        value more precisely (Tom Lane)
+        Improve precision of pgbench's --rate
+        option (Tom Lane)
        
       
 
@@ -2816,11 +2815,12 @@ Author: Thomas Munro 
 -->
 
        
-        Allow restoration of an INSERT-statement dump
-        to skip rows which would cause conflicts (Surafel Temesgen)
+        Allow pg_dump to emit INSERT ... ON CONFLICT DO
+        NOTHING (Surafel Temesgen)
        
 
        
+        This avoids conflict failures during restore.
         The pg_dump option is
         --on-conflict-do-nothing.
        
@@ -2875,6 +2875,8 @@ Author: Andrew Dunstan 
      
 
 
       
        Add  command to create
-       new table types (Haribabu Kommi, Andres Freund, Álvaro Herrera,
-       Dimitri Dolgov)
+       new table types (Andres Freund, Haribabu Kommi, Álvaro Herrera,
+       Alexander Korotkov, Dimitri Golgov)
+      
+
+      
+       This enables the development of new table
+       access methods, which can optimize storage for different
+       use-cases.  The existing heap access method
+       remains the default.