Improvements to Ian Barwick patch.

doc/FAQ

@@ -1,7 +1,7 @@
 
                 Frequently Asked Questions (FAQ) for PostgreSQL
                                        
-   Last updated: Sun Oct 13 22:49:56 EDT 2002
+   Last updated: Sun Oct 13 23:15:09 EDT 2002
    
    Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
    
@@ -52,7 +52,7 @@
    3.6) How do I tune the database engine for better performance?
    3.7) What debugging features are available?
    3.8) Why do I get "Sorry, too many clients" when trying to connect?
-   3.9) What are the pg_sorttempNNN.NN files in my database directory?
+   3.9) What is in the pgsql_tmp directory?
    3.10) Why do I need to do a dump and restore to upgrade PostgreSQL
    releases?
    
@@ -197,8 +197,7 @@
    distribution or the MS Windows FAQ at
    http://www.PostgreSQL.org/docs/faq-mswin.html.
    
-   A native port to some Microsoft platforms is currently being worked
-   upon.
+   A native port to MS Win NT/2000/XP is currently being worked on.
    
     1.5) Where can I get PostgreSQL?
     
@@ -368,7 +367,7 @@
     1.15) How can I financially assist PostgreSQL?
     
    PostgreSQL has had a first-class infrastructure since we started in
-   1994. This is all thanks to Marc Fournier, who has created and managed
+   1996. This is all thanks to Marc Fournier, who has created and managed
    this infrastructure over the years.
    
    Quality infrastructure is very important to an open-source project. It
@@ -419,9 +418,9 @@
     2.3) Does PostgreSQL have a graphical user interface? A report generator?
     An embedded query language interface?
     
-   We have a nice graphical user interface called PgAccess, which is
-   shipped as part of the distribution. PgAccess also has a report
-   generator. The Web page is http://www.pgaccess.org/.
+   We have a nice graphical user interface called PgAccess which can also
+   be used as a report generator. The Web page is
+   http://www.pgaccess.org/.
    
    We also include ecpg, which is an embedded SQL query language
    interface for C.
@@ -433,7 +432,7 @@
      * C++ (libpq++)
      * Embedded C (ecpg)
      * Java (jdbc)
-     * Perl (DBD::Pg)
+     * Perl (DBD::Pg and perl5)
      * ODBC (odbc)
      * Python (PyGreSQL)
      * TCL (libpgtcl)
@@ -441,7 +440,8 @@
      * PHP ('pg_' functions, Pear::DB)
        
    Additional interfaces are available at
-   http://www.PostgreSQL.org/interfaces.html.
+   http://www.PostgreSQL.org/interfaces.html and
+   http://gborg.PostgreSQL.org.
      _________________________________________________________________
    
                           Administrative Questions
@@ -596,16 +596,16 @@
    was 64, and changing it required a rebuild after altering the
    MaxBackendId constant in include/storage/sinvaladt.h.
    
-    3.9) What are the pg_tempNNN.NN files in my database directory?
+    3.9) What are the pgsql_tmp directory?
     
    They are temporary files generated by the query executor. For example,
    if a sort needs to be done to satisfy an ORDER BY, and the sort
    requires more space than the backend's -S parameter allows, then
    temporary files are created to hold the extra data.
    
-   The temporary files should be deleted automatically, but might not if
-   a backend crashes during a sort. If you have no backends running at
-   the time, it is safe to delete the pg_tempNNN.NN files.
+   The temporary files are usually deleted automatically, but might
+   remain if a backend crashes during a sort. A stop and restart of the
+   postmaster will remove files from those directories.
    
     3.10) Why do I need to do a dump and restore to upgrade between major
     PostgreSQL releases?
@@ -649,8 +649,8 @@
    
     4.4) How do you remove a column from a table?
     
-   Prior to version 7.3, ALTER TABLE DROP COLUMN is not supported. You
-   can do this instead:
+   This functionality was added in release 7.3 with ALTER TABLE DROP
+   COLUMN. In earlier versions, you can do this:
     BEGIN;
     LOCK TABLE old_table;
     SELECT ...  -- select all columns but the one you want to remove
@@ -815,11 +815,11 @@
    Case-insensitive equality comparisons are normally expressed as:
     SELECT *
     FROM tab
-    WHERE LOWER(col) = 'abc';
+    WHERE lower(col) = 'abc';
 
    This will not use an standard index. However, if you create a
    functional index, it will be used:
-    CREATE INDEX tabindex ON tab (LOWER(col));
+    CREATE INDEX tabindex ON tab (lower(col));
 
     4.13) In a query, how do I detect if a field is NULL?