Merge 10.2 into 10.3

mysql-test/suite/encryption/r/create_or_replace.result

 SET @save_threads = @@GLOBAL.innodb_encryption_threads;
-SET @save_tables = @@GLOBAL.innodb_encrypt_tables;
 SET default_storage_engine = InnoDB;
 SET GLOBAL innodb_encryption_threads = 4;
 CREATE TABLE `table10_int_autoinc` (`col_int_key` int, pk int auto_increment, `col_int` int, key (`col_int_key` ),primary key (pk)) engine=innodb;
@@ -18,4 +17,3 @@ connection default;
 drop table create_or_replace_t, table1_int_autoinc, table0_int_autoinc,
 table10_int_autoinc;
 SET GLOBAL innodb_encryption_threads = @save_threads;
-SET GLOBAL innodb_encrypt_tables = @save_tables;

mysql-test/suite/encryption/t/create_or_replace.opt

+--innodb-encrypt-tables

mysql-test/suite/encryption/t/create_or_replace.test

@@ -3,7 +3,6 @@
 --source include/count_sessions.inc
 
 SET @save_threads = @@GLOBAL.innodb_encryption_threads;
-SET @save_tables = @@GLOBAL.innodb_encrypt_tables;
 
 SET default_storage_engine = InnoDB;
 
@@ -76,5 +75,4 @@ drop table create_or_replace_t, table1_int_autoinc, table0_int_autoinc,
 table10_int_autoinc;
 
 SET GLOBAL innodb_encryption_threads = @save_threads;
-SET GLOBAL innodb_encrypt_tables = @save_tables;
 --source include/wait_until_count_sessions.inc

mysql-test/suite/innodb/r/alter_table.result

@@ -60,3 +60,13 @@ CREATE TABLE t1(a INT NOT NULL UNIQUE) ENGINE=InnoDB;
 INSERT INTO t1 SELECT * FROM seq_1_to_128;
 ALTER TABLE t1 ADD b TINYINT AUTO_INCREMENT PRIMARY KEY, DROP KEY a;
 DROP TABLE t1;
+#
+# MDEV-22939 Server crashes in row_make_new_pathname()
+#
+CREATE TABLE t (a INT) ENGINE=INNODB;
+ALTER TABLE t DISCARD TABLESPACE;
+ALTER TABLE t ENGINE INNODB;
+ERROR HY000: Tablespace has been discarded for table `t`
+ALTER TABLE t FORCE;
+ERROR HY000: Tablespace has been discarded for table `t`
+DROP TABLE t;

mysql-test/suite/innodb/r/truncate.result

@@ -39,3 +39,14 @@ TRUNCATE t1;
 SELECT * FROM t1;
 a
 DROP TEMPORARY TABLE t1;
+#
+# MDEV-23705 Assertion 'table->data_dir_path || !space'
+#
+CREATE TABLE t(c INT) ENGINE=InnoDB;
+ALTER TABLE t DISCARD TABLESPACE;
+RENAME TABLE t TO u;
+TRUNCATE u;
+Warnings:
+Warning	1814	Tablespace has been discarded for table `u`
+TRUNCATE u;
+DROP TABLE u;

mysql-test/suite/innodb/t/alter_table.test

@@ -68,3 +68,14 @@ CREATE TABLE t1(a INT NOT NULL UNIQUE) ENGINE=InnoDB;
 INSERT INTO t1 SELECT * FROM seq_1_to_128;
 ALTER TABLE t1 ADD b TINYINT AUTO_INCREMENT PRIMARY KEY, DROP KEY a;
 DROP TABLE t1;
+
+--echo #
+--echo # MDEV-22939 Server crashes in row_make_new_pathname()
+--echo #
+CREATE TABLE t (a INT) ENGINE=INNODB;
+ALTER TABLE t DISCARD TABLESPACE;
+--error ER_TABLESPACE_DISCARDED
+ALTER TABLE t ENGINE INNODB;
+--error ER_TABLESPACE_DISCARDED
+ALTER TABLE t FORCE;
+DROP TABLE t;

mysql-test/suite/innodb/t/truncate.test

@@ -50,3 +50,13 @@ INSERT INTO t1 VALUES(1);
 TRUNCATE t1;
 SELECT * FROM t1;
 DROP TEMPORARY TABLE t1;
+
+--echo #
+--echo # MDEV-23705 Assertion 'table->data_dir_path || !space'
+--echo #
+CREATE TABLE t(c INT) ENGINE=InnoDB;
+ALTER TABLE t DISCARD TABLESPACE;
+RENAME TABLE t TO u;
+TRUNCATE u;
+TRUNCATE u;
+DROP TABLE u;

storage/innobase/dict/dict0load.cc

@@ -2642,7 +2642,7 @@ static const char* dict_load_table_low(const table_name_t& name,
 		name.m_name, NULL, n_cols + n_v_col, n_v_col, flags, flags2);
 	(*table)->space_id = space_id;
 	(*table)->id = table_id;
-	(*table)->file_unreadable = false;
+	(*table)->file_unreadable = !!(flags2 & DICT_TF2_DISCARDED);
 
 	return(NULL);
 }
@@ -2696,20 +2696,14 @@ dict_get_and_save_data_dir_path(
 	ut_ad(!table->is_temporary());
 	ut_ad(!table->space || table->space->id == table->space_id);
 
-	if (!table->data_dir_path && table->space_id) {
+	if (!table->data_dir_path && table->space_id && table->space) {
 		if (!dict_mutex_own) {
 			dict_mutex_enter_for_mysql();
 		}
 
-		if (const char* p = table->space
-		    ? table->space->chain.start->name : NULL) {
-			table->flags |= (1 << DICT_TF_POS_DATA_DIR);
-			dict_save_data_dir_path(table, p);
-		} else if (char* path = dict_get_first_path(table->space_id)) {
-			table->flags |= (1 << DICT_TF_POS_DATA_DIR);
-			dict_save_data_dir_path(table, path);
-			ut_free(path);
-		}
+		table->flags |= (1 << DICT_TF_POS_DATA_DIR);
+		dict_save_data_dir_path(table,
+					table->space->chain.start->name);
 
 		if (table->data_dir_path == NULL) {
 			/* Since we did not set the table data_dir_path,

storage/innobase/handler/handler0alter.cc

@@ -9560,9 +9560,14 @@ ha_innobase::commit_inplace_alter_table(
 			= static_cast<ha_innobase_inplace_ctx*>(*pctx);
 
 		DBUG_ASSERT(new_clustered == ctx->need_rebuild());
-
-		fail = commit_set_autoinc(ha_alter_info, ctx, altered_table,
-					  table);
+		if (ctx->need_rebuild() && !ctx->old_table->space) {
+			my_error(ER_TABLESPACE_DISCARDED, MYF(0),
+				 table->s->table_name.str);
+			fail = true;
+		} else {
+			fail = commit_set_autoinc(ha_alter_info, ctx,
+						  altered_table, table);
+		}
 
 		if (fail) {
 		} else if (ctx->need_rebuild()) {