MDEV-16365 Setting a column NOT NULL fails to return error for

	NULL values when there is no DEFAULT

- Fixed the test failure, assigned number of rows read to new table.

mysql-test/suite/innodb/r/innodb-table-online.result

@@ -428,7 +428,7 @@ INSERT INTO t1 VALUES(33101,347,NULL,'');
 SET DEBUG_SYNC = 'now SIGNAL ins_done0';
 # session con1
 connection con1;
-ERROR 01000: Data truncated for column 'c3' at row 1
+ERROR 01000: Data truncated for column 'c3' at row 323
 SET @@sql_mode = @old_sql_mode;
 # session default
 connection default;

storage/innobase/handler/handler0alter.cc

@@ -7205,7 +7205,7 @@ ha_innobase::inplace_alter_table(
 		DEBUG_SYNC_C("row_log_table_apply1_before");
 		error = row_log_table_apply(
 			ctx->thr, m_prebuilt->table, altered_table,
-			ctx->m_stage);
+			ctx->m_stage, ctx->new_table);
 	}
 
 	/* Init online ddl status variables */
@@ -8685,7 +8685,8 @@ commit_try_rebuild(
 		error = row_log_table_apply(
 			ctx->thr, user_table, altered_table,
 			static_cast<ha_innobase_inplace_ctx*>(
-				ha_alter_info->handler_ctx)->m_stage);
+				ha_alter_info->handler_ctx)->m_stage,
+			ctx->new_table);
 
 		if (s_templ) {
 			ut_ad(ctx->need_rebuild());

storage/innobase/include/row0log.h

@@ -211,13 +211,15 @@ row_log_table_blob_alloc(
 @param[in,out]	stage		performance schema accounting object, used by
 ALTER TABLE. stage->begin_phase_log_table() will be called initially and then
 stage->inc() will be called for each block of log that is applied.
+@param[in]	new_table	Altered table
 @return DB_SUCCESS, or error code on failure */
 dberr_t
 row_log_table_apply(
 	que_thr_t*		thr,
 	dict_table_t*		old_table,
 	struct TABLE*		table,
-	ut_stage_alter_t*	stage)
+	ut_stage_alter_t*	stage,
+	dict_table_t*		new_table)
 	MY_ATTRIBUTE((warn_unused_result));
 
 /******************************************************//**

storage/innobase/row/row0log.cc

@@ -3052,13 +3052,15 @@ row_log_table_apply_ops(
 @param[in,out]	stage		performance schema accounting object, used by
 ALTER TABLE. stage->begin_phase_log_table() will be called initially and then
 stage->inc() will be called for each block of log that is applied.
+@param[in]	new_table	Altered table
 @return DB_SUCCESS, or error code on failure */
 dberr_t
 row_log_table_apply(
 	que_thr_t*		thr,
 	dict_table_t*		old_table,
 	struct TABLE*		table,
-	ut_stage_alter_t*	stage)
+	ut_stage_alter_t*	stage,
+	dict_table_t*		new_table)
 {
 	dberr_t		error;
 	dict_index_t*	clust_index;
@@ -3073,7 +3075,7 @@ row_log_table_apply(
 	clust_index = dict_table_get_first_index(old_table);
 
 	if (clust_index->online_log->n_rows == 0) {
-		clust_index->online_log->n_rows = old_table->stat_n_rows;
+		clust_index->online_log->n_rows = new_table->stat_n_rows;
 	}
 
 	rw_lock_x_lock(dict_index_get_lock(clust_index));

storage/innobase/row/row0merge.cc

@@ -1682,7 +1682,7 @@ row_merge_read_clustered_index(
 	trx_t*			trx,
 	struct TABLE*		table,
 	const dict_table_t*	old_table,
-	const dict_table_t*	new_table,
+	dict_table_t*		new_table,
 	bool			online,
 	dict_index_t**		index,
 	dict_index_t*		fts_sort_idx,
@@ -1916,7 +1916,7 @@ row_merge_read_clustered_index(
 
 	mach_write_to_8(new_sys_trx_start, trx->id);
 	mach_write_to_8(new_sys_trx_end, TRX_ID_MAX);
-	ulong	n_rows = 0;
+	uint64_t	n_rows = 0;
 
 	/* Scan the clustered index. */
 	for (;;) {
@@ -2049,8 +2049,6 @@ row_merge_read_clustered_index(
 
 		rec = page_cur_get_rec(cur);
 
-		n_rows++;
-
 		if (online) {
 			offsets = rec_get_offsets(rec, clust_index, NULL, true,
 						  ULINT_UNDEFINED, &row_heap);
@@ -2185,7 +2183,8 @@ row_merge_read_clustered_index(
 
 				null_field->set_warning(
 					Sql_condition::WARN_LEVEL_WARN,
-					WARN_DATA_TRUNCATED, 1, n_rows);
+					WARN_DATA_TRUNCATED, 1,
+					ulong(n_rows + 1));
 
 				if (!allow_not_null) {
 					err = DB_INVALID_NULL;
@@ -2328,6 +2327,7 @@ row_merge_read_clustered_index(
 		/* Build all entries for all the indexes to be created
 		in a single scan of the clustered index. */
 
+		n_rows++;
 		ulint	s_idx_cnt = 0;
 		bool	skip_sort = skip_pk_sort
 			&& dict_index_is_clust(merge_buf[0]->index);
@@ -2708,6 +2708,10 @@ row_merge_read_clustered_index(
 		}
 
 		if (row == NULL) {
+			if (old_table != new_table) {
+				new_table->stat_n_rows = n_rows;
+			}
+
 			goto all_done;
 		}