Merge rhel5-ia64-a.mysql.com:/data0/tsmith/51

into  rhel5-ia64-a.mysql.com:/data0/tsmith/build/51

mysql-test/r/innodb.result

@@ -3245,3 +3245,22 @@ where table_schema='test' and table_name = 't1';
 table_comment	data_free_is_set
 this is a comment	1
 drop table t1;
+CREATE TABLE t1 (
+c1 INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
+c2 VARCHAR(128) NOT NULL,
+PRIMARY KEY(c1)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=100;
+CREATE TABLE t2 (
+c1 INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
+c2 INT(10) UNSIGNED DEFAULT NULL,
+PRIMARY KEY(c1)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=200;
+SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE table_name = 't2';
+AUTO_INCREMENT
+200
+ALTER TABLE t2 ADD CONSTRAINT t1_t2_1 FOREIGN KEY(c1) REFERENCES t1(c1);
+SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE table_name = 't2';
+AUTO_INCREMENT
+200
+DROP TABLE t2;
+DROP TABLE t1;

mysql-test/t/innodb.test

@@ -2436,6 +2436,29 @@ select table_comment, data_free > 0 as data_free_is_set
   where table_schema='test' and table_name = 't1';
 drop table t1;
 
+#
+# Bug 34920 test
+#
+CONNECTION default;
+CREATE TABLE t1 (
+	c1 INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
+	c2 VARCHAR(128) NOT NULL,
+	PRIMARY KEY(c1)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=100;
+
+CREATE TABLE t2 (
+	c1 INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
+	c2 INT(10) UNSIGNED DEFAULT NULL,
+	PRIMARY KEY(c1)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=200;
+
+SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE table_name = 't2';
+ALTER TABLE t2 ADD CONSTRAINT t1_t2_1 FOREIGN KEY(c1) REFERENCES t1(c1);
+SELECT AUTO_INCREMENT FROM INFORMATION_SCHEMA.TABLES WHERE table_name = 't2';
+DROP TABLE t2;
+DROP TABLE t1;
+# End 34920 test
+
 #######################################################################
 #                                                                     #
 # Please, DO NOT TOUCH this file as well as the innodb.result file.   #

storage/innobase/dict/dict0dict.c

@@ -429,7 +429,7 @@ void
 dict_table_autoinc_initialize(
 /*==========================*/
 	dict_table_t*	table,	/* in: table */
-	ib_longlong	value)	/* in: next value to assign to a row */
+	ib_ulonglong	value)	/* in: next value to assign to a row */
 {
 	ut_ad(mutex_own(&table->autoinc_mutex));
 
@@ -441,7 +441,7 @@ dict_table_autoinc_initialize(
 Reads the next autoinc value (== autoinc counter value), 0 if not yet
 initialized. */
 
-ib_longlong
+ib_ulonglong
 dict_table_autoinc_read(
 /*====================*/
 				/* out: value for a new row, or 0 */
@@ -470,7 +470,7 @@ dict_table_autoinc_update(
 /*======================*/
 
 	dict_table_t*	table,	/* in: table */
-	ib_longlong	value)	/* in: value which was assigned to a row */
+	ib_ulonglong	value)	/* in: value which was assigned to a row */
 {
 	if (table->autoinc_inited && value > table->autoinc) {
 

storage/innobase/handler/ha_innodb.cc

@@ -3545,7 +3545,19 @@ no_commit:
 			if (auto_inc > prebuilt->last_value) {
 set_max_autoinc:
 				ut_a(prebuilt->table->autoinc_increment > 0);
-				auto_inc += prebuilt->table->autoinc_increment;
+
+				ulonglong	have;
+				ulonglong	need;
+
+				/* Check for overflow conditions. */
+				need = prebuilt->table->autoinc_increment;
+				have = ~0x0ULL - auto_inc;
+
+				if (have < need) {
+					need = have;
+				}
+
+				auto_inc += need;
 
 				err = innobase_set_max_autoinc(auto_inc);
 
@@ -5105,8 +5117,15 @@ ha_innobase::create(
 
 	DBUG_ASSERT(innobase_table != 0);
 
-	if ((create_info->used_fields & HA_CREATE_USED_AUTO) &&
-	   (create_info->auto_increment_value != 0)) {
+	/* Note: We can't call update_thd() as prebuilt will not be
+	setup at this stage and so we use thd. */
+
+	/* We need to copy the AUTOINC value from the old table if
+	this is an ALTER TABLE. */
+
+	if (((create_info->used_fields & HA_CREATE_USED_AUTO)
+	    || thd_sql_command(thd) == SQLCOM_ALTER_TABLE)
+	    && create_info->auto_increment_value != 0) {
 
 		/* Query was ALTER TABLE...AUTO_INCREMENT = x; or
 		CREATE TABLE ...AUTO_INCREMENT = x; Find out a table
@@ -5856,7 +5875,7 @@ ha_innobase::info(
 	}
 
 	if (flag & HA_STATUS_AUTO && table->found_next_number_field) {
-		longlong	auto_inc;
+		ulonglong	auto_inc;
 		int		ret;
 
 		/* The following function call can the first time fail in
@@ -7207,9 +7226,9 @@ ha_innobase::innobase_read_and_init_auto_inc(
 /*=========================================*/
 						/* out: 0 or generic MySQL
 						error code */
-        longlong*	value)			/* out: the autoinc value */
+        ulonglong*	value)			/* out: the autoinc value */
 {
-	longlong	auto_inc;
+	ulonglong	auto_inc;
 	ibool		stmt_start;
 	int		mysql_error = 0;
 	dict_table_t*	innodb_table = prebuilt->table;
@@ -7260,7 +7279,9 @@ ha_innobase::innobase_read_and_init_auto_inc(
 			index, autoinc_col_name, &auto_inc);
 
 		if (error == DB_SUCCESS) {
-			++auto_inc;
+			if (auto_inc < ~0x0ULL) {
+				++auto_inc;
+			}
 			dict_table_autoinc_initialize(innodb_table, auto_inc);
 		} else {
 			ut_print_timestamp(stderr);
@@ -7313,14 +7334,14 @@ ha_innobase::innobase_get_auto_increment(
 		error = innobase_autoinc_lock();
 
 		if (error == DB_SUCCESS) {
-			ib_longlong	autoinc;
+			ulonglong	autoinc;
 
 			/* Determine the first value of the interval */
 			autoinc = dict_table_autoinc_read(prebuilt->table);
 
 			/* We need to initialize the AUTO-INC value, for
 			that we release all locks.*/
-			if (autoinc <= 0) {
+			if (autoinc == 0) {
 				trx_t*		trx;
 
 				trx = prebuilt->trx;
@@ -7339,14 +7360,11 @@ ha_innobase::innobase_get_auto_increment(
 				mysql_error = innobase_read_and_init_auto_inc(
 					&autoinc);
 
-				if (!mysql_error) {
-					/* Should have read the proper value */
-					ut_a(autoinc > 0);
-				} else {
+				if (mysql_error) {
 					error = DB_ERROR;
 				}
 			} else {
-				*value = (ulonglong) autoinc;
+				*value = autoinc;
 			}
 		/* A deadlock error during normal processing is OK
 		and can be ignored. */
@@ -7431,10 +7449,19 @@ ha_innobase::get_auto_increment(
 	/* With old style AUTOINC locking we only update the table's
 	AUTOINC counter after attempting to insert the row. */
 	if (innobase_autoinc_lock_mode != AUTOINC_OLD_STYLE_LOCKING) {
+		ulonglong	have;
+		ulonglong	need;
+
+		/* Check for overflow conditions. */
+		need = *nb_reserved_values * increment;
+		have = ~0x0ULL - *first_value;
+
+		if (have < need) {
+			need = have;
+		}
 
 		/* Compute the last value in the interval */
-		prebuilt->last_value = *first_value +
-		    (*nb_reserved_values * increment);
+		prebuilt->last_value = *first_value + need;
 
 		ut_a(prebuilt->last_value >= *first_value);
 

storage/innobase/handler/ha_innodb.h

@@ -72,7 +72,7 @@ class ha_innobase: public handler
 	int update_thd(THD* thd);
 	int change_active_index(uint keynr);
 	int general_fetch(uchar* buf, uint direction, uint match_mode);
-	int innobase_read_and_init_auto_inc(longlong* ret);
+	int innobase_read_and_init_auto_inc(ulonglong* ret);
 	ulong innobase_autoinc_lock();
 	ulong innobase_set_max_autoinc(ulonglong auto_inc);
 	ulong innobase_reset_autoinc(ulonglong auto_inc);

storage/innobase/include/dict0dict.h

@@ -185,12 +185,12 @@ void
 dict_table_autoinc_initialize(
 /*==========================*/
 	dict_table_t*	table,	/* in: table */
-	ib_longlong	value);	/* in: next value to assign to a row */
+	ib_ulonglong	value);	/* in: next value to assign to a row */
 /************************************************************************
 Reads the next autoinc value (== autoinc counter value), 0 if not yet
 initialized. */
 
-ib_longlong
+ib_ulonglong
 dict_table_autoinc_read(
 /*====================*/
 				/* out: value for a new row, or 0 */
@@ -204,7 +204,7 @@ dict_table_autoinc_update(
 /*======================*/
 
 	dict_table_t*	table,	/* in: table */
-	ib_longlong	value);	/* in: value which was assigned to a row */
+	ib_ulonglong	value);	/* in: value which was assigned to a row */
 /************************************************************************
 Release the autoinc lock.*/
 

storage/innobase/include/dict0mem.h

@@ -409,7 +409,7 @@ struct dict_table_struct{
 				/* TRUE if the autoinc counter has been
 				inited; MySQL gets the init value by executing
 				SELECT MAX(auto inc column) */
-	ib_longlong	autoinc;/* autoinc counter value to give to the
+	ib_ulonglong	autoinc;/* autoinc counter value to give to the
 				next inserted row */
 
 	ib_longlong	autoinc_increment;

storage/innobase/include/row0sel.h

@@ -181,7 +181,7 @@ row_search_max_autoinc(
 					error code */
 	dict_index_t*	index,		/* in: index to search */
 	const char*	col_name,	/* in: autoinc column name */
-	ib_longlong*	value);		/* out: AUTOINC value read */
+	ib_ulonglong*	value);		/* out: AUTOINC value read */
 
 /* A structure for caching column values for prefetched rows */
 struct sel_buf_struct{

storage/innobase/include/univ.i

@@ -212,8 +212,11 @@ typedef long int		lint;
 
 #ifdef __WIN__
 typedef __int64			ib_longlong;
+typedef unsigned __int64	ib_ulonglong;
 #else
+/* Note: longlong and ulonglong come from MySQL headers. */
 typedef longlong		ib_longlong;
+typedef ulonglong               ib_ulonglong;
 #endif
 
 typedef unsigned long long int	ullint;

storage/innobase/row/row0sel.c

@@ -4529,7 +4529,7 @@ row_search_check_if_query_cache_permitted(
 Read the AUTOINC column from the current row. If the value is less than
 0 and the type is not unsigned then we reset the value to 0. */
 static
-ib_longlong
+ib_ulonglong
 row_search_autoinc_read_column(
 /*===========================*/
 					/* out: value read from the column */
@@ -4540,7 +4540,7 @@ row_search_autoinc_read_column(
 {
 	ulint		len;
 	const byte*	data;
-	ib_longlong	value;
+	ib_ulonglong	value;
 	mem_heap_t*	heap = NULL;
 	/* Our requirement is that dest should be word aligned. */
 	byte		dest[sizeof(value)];
@@ -4567,7 +4567,7 @@ row_search_autoinc_read_column(
 	and that dest is word aligned. */
 	switch (len) {
 	case 8:
-		value = *(ib_longlong*) dest;
+		value = *(ib_ulonglong*) dest;
 		break;
 
 	case 4:
@@ -4595,7 +4595,7 @@ row_search_autoinc_read_column(
 		mem_heap_free(heap);
 	}
 
-	if (!unsigned_type && value < 0) {
+	if (!unsigned_type && (ib_longlong) value < 0) {
 		value = 0;
 	}
 
@@ -4634,7 +4634,7 @@ row_search_max_autoinc(
 					column name can't be found in index */
 	dict_index_t*	index,		/* in: index to search */
 	const char*	col_name,	/* in: name of autoinc column */
-	ib_longlong*	value)		/* out: AUTOINC value read */
+	ib_ulonglong*	value)		/* out: AUTOINC value read */
 {
 	ulint		i;
 	ulint		n_cols;