Message of move - Mailing list pgsql-hackers

Hi.

A few weeks (months?) ago I made a patch to the postgres
backend to get back the number of realized moves after
a MOVE command. So if I issue a "MOVE 100 IN cusrorname",
but there was only 66 rows left, I get back not only "MOVE",
but "MOVE 66". If the 100 steps could be realized, then
"MOVE 100" would come back. 

I send this info to you, because I would like to ask you if
it could be OK to include in future versions. I think you
are in a beta testing phase now, so it is trivially not the
time to include it now...

The solution is 2 code lines into command.c, and then the
message of move cames with the number into for example psql.
1 other word into the jdbc driver, and this number is
available at update_count.

I made the patch to the latest (one day old) CVS version.

Here are the patches. Please look at them, and if you think 
it's a good idea, then please let me know where and how should
I post them, and approximately when will you finish with the
beta testing, so it can be really considered seriously.

I included them also as an attachment, because my silly pine
insists to break the lines...

--- ./src/backend/commands/command.c.orig    Fri Mar 23 05:49:52 2001
+++ ./src/backend/commands/command.c    Sat Apr  7 10:24:27 2001
@@ -174,6 +174,12 @@        if (!portal->atEnd)        {            ExecutorRun(queryDesc, estate, EXEC_FOR, (long)
count);
+
+            /* I use CMD_UPDATE, because no CMD_MOVE or the like
+               exists, and I would like to provide the same
+               kind of info as CMD_UPDATE */
+            UpdateCommandInfo(CMD_UPDATE, 0, estate->es_processed);
+            if (estate->es_processed > 0)                portal->atStart = false;        /* OK to back up now */
    if (count <= 0 || (int) estate->es_processed < count)
 
@@ -185,6 +191,12 @@        if (!portal->atStart)        {            ExecutorRun(queryDesc, estate, EXEC_BACK, (long)
count);
+
+            /* I use CMD_UPDATE, because no CMD_MOVE or the like
+               exists, and I would like to provide the same
+               kind of info as CMD_UPDATE */
+            UpdateCommandInfo(CMD_UPDATE, 0, -1*estate->es_processed);
+            if (estate->es_processed > 0)                portal->atEnd = false;    /* OK to go forward now */
 if (count <= 0 || (int) estate->es_processed < count)
 



Here is the patch for the jdbc driver. >! I couldn't test it
with the current version, because it needs ant, and I didn't
have time and money today to download it... !< However, it
is a trivial change, and if Peter T. Mount reads it, I ask
him to check if he likes it... Thanks for any kind of answer.  

--- ./src/interfaces/jdbc/org/postgresql/Connection.java.orig    Wed Jan 31 09:26:01 2001
+++ ./src/interfaces/jdbc/org/postgresql/Connection.java    Sat Apr  7 16:42:04 2001
@@ -490,7 +490,7 @@                recv_status = pg_stream.ReceiveString(receive_sbuf,8192,getEncoding());
 // Now handle the update count correctly.
 
-                if(recv_status.startsWith("INSERT") || recv_status.startsWith("UPDATE") ||
recv_status.startsWith("DELETE")){
 
+                if(recv_status.startsWith("INSERT") || recv_status.startsWith("UPDATE") ||
recv_status.startsWith("DELETE")|| recv_status.startsWith("MOVE")) {                    try {
update_count= Integer.parseInt(recv_status.substring(1+recv_status.lastIndexOf(' ')));                    }
catch(NumberFormatExceptionnfe) {
 


-------------------
(This last looks a bit complex, but the change is really a new 
"|| recv_status.startsWith("MOVE")" only...)


Thank you for having read this, 

Baldvin

p.s.: I read a page on your homepage, called "unapplied patches".
I would like to know if it means "still unapplied patches", or
it means "bad, and not accepted ideas".