From: Michael Meskes <Michael.Meskes@usa.net>

See attached file. Now accepts "exec sql whenever sqlwarning".

Author: scrappy

src/interfaces/ecpg/ChangeLog

@@ -335,7 +335,7 @@ Thu Sep 17 08:55:33 CEST 1998
 
 Thu Sep 17 19:23:24 CEST 1998
 
-	- Added missing �;� in preproc.y
+	- Added missing ';' in preproc.y
 	- Set version to 2.4.2
 
 Tue Sep 29 10:22:00 CEST 1998
@@ -357,23 +357,29 @@ Thu Okt 15 10:05:04 CEST 1998
 	- Synced preproc.y with gram.y yet again.
         - Set version to 2.4.4
 
-Wed Dec  9 11:24:54 MEZ 1998
+Wed Dec  9 20:24:54 MEZ 1998
 
 	- Synced preproc.y with gram.y and the keywords.c files to add CASE
 	  statement.
 
-Tue Dec 22 14:16:11 CET 1998
+Tue Dec 22 19:16:11 CET 1998
 
 	- Synced preproc.y with gram.y for locking statements.
 	- Set version to 2.4.5
 
-Tue Jan  7 15:19:34 CET 1999
+Tue Jan  7 19:19:34 CET 1999
 
 	- Synced preproc.y with gram.y for for-update clause and changes in
 	  handling of numerics
 
-Mon Jan 18 11:22:44 CET 1999
+Mon Jan 18 19:22:44 CET 1999
 
 	- Added INTERSECT, EXCEPT and UNION for Select statements
 	- Put keywords.c in sync again after forgettimg it the last time.
-	- Set version to 2.4.6
+
+Thu Jan 21 21:29:00 CET 1999
+
+	- Fixed libecpg to not segfault if there is no connection.
+	- Set library version to 2.6.3
+	- Added 'exec sql whenever sqlwarning'.
+	- Set ecpg version to 2.4.6

src/interfaces/ecpg/lib/Makefile.in

@@ -6,13 +6,13 @@
 # Copyright (c) 1994, Regents of the University of California
 #
 # IDENTIFICATION
-#    $Header: /cvsroot/pgsql/src/interfaces/ecpg/lib/Attic/Makefile.in,v 1.39 1999/01/17 06:19:24 momjian Exp $
+#    $Header: /cvsroot/pgsql/src/interfaces/ecpg/lib/Attic/Makefile.in,v 1.40 1999/01/21 20:01:32 scrappy Exp $
 #
 #-------------------------------------------------------------------------
 
 NAME= ecpg
 SO_MAJOR_VERSION= 2
-SO_MINOR_VERSION= 6.2
+SO_MINOR_VERSION= 6.3
 
 SRCDIR= @top_srcdir@
 include $(SRCDIR)/Makefile.global

src/interfaces/ecpg/lib/ecpglib.c

@@ -886,12 +886,17 @@ ECPGtrans(int lineno, const char *transaction)
 	PGresult   *res;
 
 	ECPGlog("ECPGtrans line %d action = %s\n", lineno, transaction);
-	if ((res = PQexec(actual_connection->connection, transaction)) == NULL)
+
+	/* if we have no connection we just simulate the command */
+	if (actual_connection && actual_connection->connection)
 	{
-		register_error(ECPG_TRANS, "Error in transaction processing line %d.", lineno);
-		return FALSE;
+		if ((res = PQexec(actual_connection->connection, transaction)) == NULL)
+		{
+			register_error(ECPG_TRANS, "Error in transaction processing line %d.", lineno);
+			return FALSE;
+		}
+		PQclear(res);
 	}
-	PQclear(res);
 	if (strcmp(transaction, "commit") == 0 || strcmp(transaction, "rollback") == 0)
 		committed = 1;
 	return TRUE;

src/interfaces/ecpg/preproc/ecpg_keywords.c

@@ -38,6 +38,7 @@ static ScanKeyword ScanKeywords[] = {
 	{"section", SQL_SECTION},
 	{"sqlerror", SQL_SQLERROR},
 	{"sqlprint", SQL_SQLPRINT},
+	{"sqlwarning", SQL_SQLWARNING},
 	{"stop", SQL_STOP},
 	{"whenever", SQL_WHENEVER},
 };

src/interfaces/ecpg/preproc/preproc.y

@@ -45,7 +45,7 @@ output_line_number()
 /*
  * store the whenever action here
  */
-static struct when when_error, when_nf;
+static struct when when_error, when_nf, when_warn;
 
 static void
 print_action(struct when *w)
@@ -76,6 +76,12 @@ whenever_action(int mode)
 		fprintf(yyout, "\nif (sqlca.sqlcode == ECPG_NOT_FOUND) ");
 		print_action(&when_nf);
 	}
+	if (when_warn.code != W_NOTHING)
+        {
+		output_line_number();
+                fprintf(yyout, "\nif (sqlca.sqlwarn[0] == 'W') ");
+		print_action(&when_warn);
+        }
 	if (when_error.code != W_NOTHING)
         {
 		output_line_number();
@@ -517,7 +523,7 @@ output_statement(char * stmt, int mode)
 %token		SQL_DISCONNECT SQL_FOUND SQL_GO SQL_GOTO
 %token		SQL_IDENTIFIED SQL_IMMEDIATE SQL_INDICATOR SQL_OPEN SQL_RELEASE
 %token		SQL_SECTION SQL_SEMI SQL_SQLERROR SQL_SQLPRINT SQL_START
-%token		SQL_STOP SQL_WHENEVER
+%token		SQL_STOP SQL_WHENEVER SQL_SQLWARNING
 
 /* C token */
 %token		S_ANYTHING S_AUTO S_BOOL S_CHAR S_CONST S_DOUBLE S_ENUM S_EXTERN
@@ -4630,9 +4636,7 @@ ECPGSetConnection:  SET SQL_CONNECTION connection_object
                         }
 /*
  * whenever statement: decide what to do in case of error/no data found
- * according to SQL standards we miss: SQLSTATE, CONSTRAINT, SQLEXCEPTION
- * and SQLWARNING
-
+ * according to SQL standards we lack: SQLSTATE, CONSTRAINT and SQLEXCEPTION
  */
 ECPGWhenever: SQL_WHENEVER SQL_SQLERROR action {
 	when_error.code = $<action>3.code;
@@ -4644,6 +4648,11 @@ ECPGWhenever: SQL_WHENEVER SQL_SQLERROR action {
 	when_nf.command = $<action>4.command;
 	$$ = cat3_str(make1_str("/* exec sql whenever not found "), $4.str, make1_str("; */\n"));
 }
+	| SQL_WHENEVER SQL_SQLWARNING action {
+	when_warn.code = $<action>3.code;
+	when_warn.command = $<action>3.command;
+	$$ = cat3_str(make1_str("/* exec sql whenever sql_warning "), $3.str, make1_str("; */\n"));
+}
 
 action : SQL_CONTINUE {
 	$<action>$.code = W_NOTHING;

src/interfaces/ecpg/test/header_test.h

@@ -1,3 +1,15 @@
 exec sql include sqlca;
 
-exec sql whenever sqlerror sqlprint;
+exec sql whenever sqlerror do print_and_stop();
+exec sql whenever sqlwarning do warn();
+
+void print_and_stop(void)
+{
+	sqlprint();
+	exit(-1);
+}
+
+void warn(void)
+{
+	fprintf(stderr, "Warning: At least one column was truncated\n");
+}