Merge work:/my/mysql into donna.mysql.fi:/home/my/bk/mysql

sql/ha_innobase.cc:
  Auto merged

innobase/include/row0mysql.h

@@ -170,6 +170,14 @@ row_table_got_default_clust_index(
 /*==============================*/
 	dict_table_t*	table);
 /*************************************************************************
+Calculates the key number used inside MySQL for an Innobase index. We have
+to take into account if we generated a default clustered index for the table */
+
+ulint
+row_get_mysql_key_number_for_index(
+/*===============================*/
+	dict_index_t*	index);
+/*************************************************************************
 Does an update or delete of a row for MySQL. */
 
 int

innobase/include/trx0trx.h

@@ -307,6 +307,9 @@ struct trx_struct{
 	/*------------------------------*/
 	ulint		error_state;	/* 0 if no error, otherwise error
 					number */
+	void*		error_info;	/* if the error number indicates a
+					duplicate key error, a pointer to
+					the problematic index is stored here */
 	sess_t*		sess;		/* session of the trx, NULL if none */
  	ulint		que_state;	/* TRX_QUE_RUNNING, TRX_QUE_LOCK_WAIT,
 					... */

innobase/row/row0ins.c

@@ -407,6 +407,7 @@ row_ins_scan_sec_index_for_duplicate(
 	ut_a(dupl_count >= 1);
 
 	if (dupl_count > 1) {
+		trx->error_info = index;
 
 		return(DB_DUPLICATE_KEY);
 	}
@@ -468,6 +469,7 @@ row_ins_duplicate_error(
 			if (row_ins_dupl_error_with_rec(rec, entry,
 							cursor->index, trx)) {
 				*dupl_rec = rec;
+				trx->error_info = cursor->index;
 				
 				return(DB_DUPLICATE_KEY);
 			}
@@ -484,6 +486,7 @@ row_ins_duplicate_error(
 			if (row_ins_dupl_error_with_rec(rec, entry,
 							cursor->index, trx)) {
 				*dupl_rec = rec;
+				trx->error_info = cursor->index;
 
 				return(DB_DUPLICATE_KEY);
 			}

innobase/row/row0mysql.c

@@ -761,6 +761,36 @@ row_table_got_default_clust_index(
 	return(FALSE);
 }
 
+/*************************************************************************
+Calculates the key number used inside MySQL for an Innobase index. We have
+to take into account if we generated a default clustered index for the table */
+
+ulint
+row_get_mysql_key_number_for_index(
+/*===============================*/
+	dict_index_t*	index)
+{
+	dict_index_t*	ind;
+	ulint		i;
+
+	ut_a(index);
+
+	i = 0;
+	ind = dict_table_get_first_index(index->table);
+
+	while (index != ind) {
+		ind = dict_table_get_next_index(ind);
+		i++;
+	}
+
+	if (row_table_got_default_clust_index(index->table)) {
+		ut_a(i > 0);
+		i--;
+	}
+
+	return(i);
+}
+
 /*************************************************************************
 Does a table creation operation for MySQL. */
 

sql/ha_innobase.cc

@@ -18,12 +18,6 @@
 Innobase */
 
 /* TODO list for the Innobase handler:
-  - How to check for deadlocks if Innobase tables are used alongside
-    other MySQL table types? Solution: we will use a timeout.
-  - Innobase currently includes the path to a table name: the path should
-    actually be dropped off, because we may move a whole database to a new
-    directory.
-  - Add a deadlock error message to MySQL.
   - Ask Monty if strings of different languages can exist in the same
     database. Answer: in near future yes, but not yet.
 */
@@ -415,10 +409,10 @@ innobase_init(void)
 /*===============*/
 			/* out: TRUE if error */
 {
+	static char 	current_dir[3];
 	int		err;
 	bool		ret;
-	ibool	test_bool;
-	static  char current_dir[3];
+
   	DBUG_ENTER("innobase_init");
 
 	/* Use current_dir if no paths are set */
@@ -1660,7 +1654,7 @@ ha_innobase::change_active_index(
 
   	statistic_increment(ha_read_key_count, &LOCK_status);
 
-  	DBUG_ENTER("ha_innobase::change_active_index");
+  	DBUG_ENTER("index_read_idx");
 
 	active_index = keynr;
 
@@ -1686,7 +1680,7 @@ ha_innobase::change_active_index(
 
 	build_template(prebuilt, user_thd, table, ROW_MYSQL_WHOLE_ROW);
 
-	DBUG_RETURN(0);
+	return(0);
 }
 
 /**************************************************************************
@@ -2220,7 +2214,6 @@ ha_innobase::create(
 {
 	int		error;
 	dict_table_t*	innobase_table;
-	uint		name_len;
 	trx_t*		trx;
 	int		primary_key_no	= -1;
 	KEY*		key;
@@ -2238,7 +2231,7 @@ ha_innobase::create(
 
   	/* Create the table definition in Innobase */
 
-  	if ((error = create_table_def(trx, form, norm_name))) {
+  	if (error = create_table_def(trx, form, norm_name)) {
 
 		trx_commit_for_mysql(trx);
 
@@ -2257,6 +2250,11 @@ ha_innobase::create(
     		}
 	}
 
+	/* Our function row_get_mysql_key_number_for_index assumes
+	the primary key is always number 0, if it exists */
+
+	assert(primary_key_no == -1 || primary_key_no == 0);
+
 	/* Create the keys */
 
 	if (form->keys == 0 || primary_key_no == -1) {
@@ -2570,9 +2568,9 @@ ha_innobase::info(
 	}
 
   	if (flag & HA_STATUS_ERRKEY) {
-
-		errkey = (unsigned int)-1; /* TODO: get the key number from
-                                           Innobase */
+		errkey = (unsigned int) row_get_mysql_key_number_for_index(
+						(dict_index_t*)
+						prebuilt->trx->error_info);
   	}
 
   	DBUG_VOID_RETURN;