doc: improve 9.4 release notes

Patch by Andres Freund

diff --git a/doc/src/sgml/release-9.4.sgml b/doc/src/sgml/release-9.4.sgml
index 3070d0b5dc0c0f6c397ef4ce3ed86ec6e05d72fb..91a586f63ea55f2b0130a1956bb6e9507feb75c1 100644 (file)
--- a/doc/src/sgml/release-9.4.sgml
+++ b/doc/src/sgml/release-9.4.sgml
@@ -30,7 +30,7 @@
      
       
        Logical decoding allows database
-       changes to be streamed out in customizable format
+       changes to be streamed out in a customizable format
       
      
 
@@ -298,6 +298,12 @@
      
     
 
+    
+     
+      DISCARD ALL now also discards the state of sequences.
+     
+    
+
    
 
   
@@ -1005,7 +1011,6 @@
        
 
        
-        
         This was added so views that select from a table with zero columns
         can be dumped correctly.
        
@@ -1028,7 +1033,6 @@
        
 
        
-        
         DISCARD ALL will now also discard such information.
        
       
@@ -1199,6 +1203,11 @@
         AGGREGATE to supply the size of the aggregate's
         transition state data (Hadi Moshayedi)
        
+
+       
+        This allows the optimizer to better estimate how much memory will be
+        used by aggregates.
+       
       
 
      
@@ -1218,7 +1227,7 @@
 
       
        
-        Allow the changing of foreign key constraint  via 
+        Allow changing foreign key constraint deferrability via 
         linkend="SQL-ALTERTABLE">ALTER TABLE
         ... ALTER CONSTRAINT (Simon Riggs)
        
@@ -1254,7 +1263,7 @@
 
       
        
-        Fully-implement the 
+        Fully implement the 
         linkend="datatype-line">line data type (Peter
         Eisentraut)
        
@@ -1472,7 +1481,7 @@
        
         Add function 
         linkend="functions-admin-dblocation">pg_filenode_relation()
-        to allow for more efficient filenode to relation lookups (Andres
+        to allow for more efficient lookup of relation names from filenodes (Andres
         Freund)
        
       
@@ -1543,10 +1552,13 @@
       
 
       
-       
        
         Allow polymorphic aggregates to have non-polymorphic state data
-        types ? (Tom Lane)
+        types (Tom Lane)
+       
+       
+        This allows the declaration of aggregates like the built-in
+        aggregate array_agg() in SQL.
        
       
 
@@ -1772,7 +1784,8 @@
 
       
        
-        Allow field wrapping to psql's "extended" mode
+        Add ability to wrap long lines in psql's
+        expanded mode by using \pset format wrapped
         (Sergey Muraviov)
        
       
@@ -2218,7 +2231,8 @@
       
        
         Add pg_prewarm
-        to preload relation data into the shared buffer cache (Robert Haas)
+        extension to preload relation data into the shared buffer cache
+        (Robert Haas)
        
 
        
@@ -2243,7 +2257,7 @@
 
       
        
-        Add logging of trigger execution to 
+        Add option to include trigger execution time to 
         linkend="auto-explain">auto_explain
         (Horiguchi Kyotaro)
        
@@ -2279,9 +2293,10 @@
 
       
        
-        Improve indexing of 
-        linkend="pgtrgm">pg_trgm values to
-        discourage indexing whitespace (Alexander Korotkov)
+        Improve pg_trgm's
+        generation of trigrams for indexed regular expression searches by
+        discouraging the indexing of trigrams containing whitespace (Alexander
+        Korotkov)
        
       
 
@@ -2328,7 +2343,7 @@
 
       
        
-        Allow pgbench to process script files of any line length (Sawada
+        Allow pgbench to process script files of any line length (Sawada
         Masahiko)
        
 
@@ -2339,20 +2354,20 @@
 
       
        
-        Add pg_bench option (--rate) to control
+        Add pgbench option (--rate) to control
         the transaction rate (Fabien Coelho)
        
       
 
       
        
-        Add --progress output option to pgbench (Fabien Coelho)
+        Add --progress output option to pgbench (Fabien Coelho)
        
       
 
       
        
-        Add long options to pgbench (Fabien Coelho)
+        Add long options to pgbench (Fabien Coelho)
        
       
 




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