MDEV-12121: Revert test adjustments for -DWITH_INNODB_AHI=OFF

Because the default build configuration of the server will remain
at -DWITH_INNODB_AHI=ON, we want to test the instrumentation.

We make and revert the test adjustments in separate commits on purpose,
so that this commit can be easily reverted later if the default
build configuration is changed to -DWITH_INNODB_AHI=OFF.

mysql-test/include/have_innodb_ahi.inc

-if (`select count(*)!=1 from information_schema.GLOBAL_VARIABLES
-       where variable_name='innodb_adaptive_hash_index'`){
-  skip Test requires cmake -DWITH_INNODB_AHI=ON;
-}

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

@@ -42,6 +42,7 @@ trx_isolation_level	varchar(16)	NO
 trx_unique_checks	int(1)	NO		0	
 trx_foreign_key_checks	int(1)	NO		0	
 trx_last_foreign_key_error	varchar(256)	YES		NULL	
+trx_adaptive_hash_latched	int(1)	NO		0	
 trx_is_read_only	int(1)	NO		0	
 trx_autocommit_non_locking	int(1)	NO		0	
 trx_state	trx_weight	trx_tables_in_use	trx_tables_locked	trx_rows_locked	trx_rows_modified	trx_concurrency_tickets	trx_isolation_level	trx_unique_checks	trx_foreign_key_checks

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

-select count(*) from information_schema.innodb_trx;
-count(*)
-0
+select * from information_schema.innodb_trx;
+trx_id	trx_state	trx_started	trx_requested_lock_id	trx_wait_started	trx_weight	trx_mysql_thread_id	trx_query	trx_operation_state	trx_tables_in_use	trx_tables_locked	trx_lock_structs	trx_lock_memory_bytes	trx_rows_locked	trx_rows_modified	trx_concurrency_tickets	trx_isolation_level	trx_unique_checks	trx_foreign_key_checks	trx_last_foreign_key_error	trx_adaptive_hash_latched	trx_is_read_only	trx_autocommit_non_locking
 Warnings:
 Warning	1012	InnoDB: SELECTing from INFORMATION_SCHEMA.innodb_trx but the InnoDB storage engine is not installed
 select * from information_schema.innodb_locks;
@@ -35,8 +34,7 @@ select * from information_schema.innodb_cmpmem_reset;
 page_size	buffer_pool_instance	pages_used	pages_free	relocation_ops	relocation_time
 Warnings:
 Warning	1012	InnoDB: SELECTing from INFORMATION_SCHEMA.innodb_cmpmem_reset but the InnoDB storage engine is not installed
-select * from information_schema.innodb_metrics
-WHERE name NOT LIKE 'adaptive_hash_%';
+select * from information_schema.innodb_metrics;
 NAME	SUBSYSTEM	COUNT	MAX_COUNT	MIN_COUNT	AVG_COUNT	COUNT_RESET	MAX_COUNT_RESET	MIN_COUNT_RESET	AVG_COUNT_RESET	TIME_ENABLED	TIME_DISABLED	TIME_ELAPSED	TIME_RESET	STATUS	TYPE	COMMENT
 metadata_table_handles_opened	metadata	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	disabled	counter	Number of table handles opened
 metadata_table_handles_closed	metadata	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	disabled	counter	Number of table handles closed
@@ -230,6 +228,14 @@ index_page_merge_successful	index	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NU
 index_page_reorg_attempts	index	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	disabled	counter	Number of index page reorganization attempts
 index_page_reorg_successful	index	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	disabled	counter	Number of successful index page reorganizations
 index_page_discards	index	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	disabled	counter	Number of index pages discarded
+adaptive_hash_searches	adaptive_hash_index	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	disabled	status_counter	Number of successful searches using Adaptive Hash Index
+adaptive_hash_searches_btree	adaptive_hash_index	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	disabled	status_counter	Number of searches using B-tree on an index search
+adaptive_hash_pages_added	adaptive_hash_index	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	disabled	counter	Number of index pages on which the Adaptive Hash Index is built
+adaptive_hash_pages_removed	adaptive_hash_index	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	disabled	counter	Number of index pages whose corresponding Adaptive Hash Index entries were removed
+adaptive_hash_rows_added	adaptive_hash_index	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	disabled	counter	Number of Adaptive Hash Index rows added
+adaptive_hash_rows_removed	adaptive_hash_index	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	disabled	counter	Number of Adaptive Hash Index rows removed
+adaptive_hash_rows_deleted_no_hash_entry	adaptive_hash_index	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	disabled	counter	Number of rows deleted that did not have corresponding Adaptive Hash Index entries
+adaptive_hash_rows_updated	adaptive_hash_index	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	disabled	counter	Number of Adaptive Hash Index rows updated
 file_num_open_files	file_system	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	disabled	value	Number of files currently open (innodb_num_open_files)
 ibuf_merges_insert	change_buffer	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	disabled	status_counter	Number of inserted records merged by change buffering
 ibuf_merges_delete_mark	change_buffer	0	NULL	NULL	NULL	0	NULL	NULL	NULL	NULL	NULL	NULL	NULL	disabled	status_counter	Number of deleted records merged by change buffering
@@ -330,14 +336,12 @@ select * from information_schema.innodb_ft_index_table;
 WORD	FIRST_DOC_ID	LAST_DOC_ID	DOC_COUNT	DOC_ID	POSITION
 select * from information_schema.innodb_ft_config;
 KEY	VALUE
-select count(*) from information_schema.innodb_buffer_page;
-count(*)
-0
+select * from information_schema.innodb_buffer_page;
+POOL_ID	BLOCK_ID	SPACE	PAGE_NUMBER	PAGE_TYPE	FLUSH_TYPE	FIX_COUNT	IS_HASHED	NEWEST_MODIFICATION	OLDEST_MODIFICATION	ACCESS_TIME	TABLE_NAME	INDEX_NAME	NUMBER_RECORDS	DATA_SIZE	COMPRESSED_SIZE	PAGE_STATE	IO_FIX	IS_OLD	FREE_PAGE_CLOCK
 Warnings:
 Warning	1012	InnoDB: SELECTing from INFORMATION_SCHEMA.innodb_buffer_page but the InnoDB storage engine is not installed
-select count(*) from information_schema.innodb_buffer_page_lru;
-count(*)
-0
+select * from information_schema.innodb_buffer_page_lru;
+POOL_ID	LRU_POSITION	SPACE	PAGE_NUMBER	PAGE_TYPE	FLUSH_TYPE	FIX_COUNT	IS_HASHED	NEWEST_MODIFICATION	OLDEST_MODIFICATION	ACCESS_TIME	TABLE_NAME	INDEX_NAME	NUMBER_RECORDS	DATA_SIZE	COMPRESSED_SIZE	COMPRESSED	IO_FIX	IS_OLD	FREE_PAGE_CLOCK
 Warnings:
 Warning	1012	InnoDB: SELECTing from INFORMATION_SCHEMA.innodb_buffer_page_lru but the InnoDB storage engine is not installed
 select * from information_schema.innodb_buffer_stats;

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

 set global innodb_monitor_disable = All;
-select name, status from information_schema.innodb_metrics
-where name NOT LIKE 'adaptive_hash_%';
+select name, status from information_schema.innodb_metrics;
 name	status
 metadata_table_handles_opened	disabled
 metadata_table_handles_closed	disabled
@@ -194,6 +193,14 @@ index_page_merge_successful	disabled
 index_page_reorg_attempts	disabled
 index_page_reorg_successful	disabled
 index_page_discards	disabled
+adaptive_hash_searches	disabled
+adaptive_hash_searches_btree	disabled
+adaptive_hash_pages_added	disabled
+adaptive_hash_pages_removed	disabled
+adaptive_hash_rows_added	disabled
+adaptive_hash_rows_removed	disabled
+adaptive_hash_rows_deleted_no_hash_entry	disabled
+adaptive_hash_rows_updated	disabled
 file_num_open_files	disabled
 ibuf_merges_insert	disabled
 ibuf_merges_delete_mark	disabled

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

@@ -17,6 +17,10 @@
 
 SET storage_engine=InnoDB;
 
+-- disable_warnings
+DROP TABLE IF EXISTS t_min, t_max;
+-- enable_warnings
+
 let $table_def =
 (
 	c01 TINYINT,
@@ -178,13 +182,13 @@ DROP TABLE t_min, t_max, ```t'\"_str`;
 # INFORMATION_SCHEMA.INNODB_TRX
 #
 
-CREATE TABLE t1 LIKE INFORMATION_SCHEMA.INNODB_TRX;
--- error 0,ER_CANT_DROP_FIELD_OR_KEY
-ALTER TABLE t1 DROP COLUMN trx_adaptive_hash_latched;
 -- enable_result_log
-DESCRIBE t1;
+DESCRIBE INFORMATION_SCHEMA.INNODB_TRX;
 -- disable_result_log
-DROP TABLE t1;
+
+-- disable_warnings
+DROP TABLE IF EXISTS t1;
+-- enable_warnings
 
 CREATE TABLE t1 (
 	c01 INT,

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

 --source include/not_embedded.inc
 
-select count(*) from information_schema.innodb_trx;
+select * from information_schema.innodb_trx;
 select * from information_schema.innodb_locks;
 select * from information_schema.innodb_lock_waits;
 select * from information_schema.innodb_cmp;
@@ -9,16 +9,15 @@ select * from information_schema.innodb_cmp_per_index;
 select * from information_schema.innodb_cmp_per_index_reset;
 select * from information_schema.innodb_cmpmem;
 select * from information_schema.innodb_cmpmem_reset;
-select * from information_schema.innodb_metrics
-WHERE name NOT LIKE 'adaptive_hash_%';
+select * from information_schema.innodb_metrics;
 select * from information_schema.innodb_ft_default_stopword;
 select * from information_schema.innodb_ft_deleted;
 select * from information_schema.innodb_ft_being_deleted;
 select * from information_schema.innodb_ft_index_cache;
 select * from information_schema.innodb_ft_index_table;
 select * from information_schema.innodb_ft_config;
-select count(*) from information_schema.innodb_buffer_page;
-select count(*) from information_schema.innodb_buffer_page_lru;
+select * from information_schema.innodb_buffer_page;
+select * from information_schema.innodb_buffer_page_lru;
 --error 0,1109
 select * from information_schema.innodb_buffer_stats;
 select * from information_schema.innodb_sys_tables;

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

@@ -8,9 +8,7 @@
 set global innodb_monitor_disable = All;
 # Test turn on/off the monitor counter  with "all" option
 # By default, they will be off.
-# Skip the adaptive_hash fields, because they depend on WITH_INNODB_AHI.
-select name, status from information_schema.innodb_metrics
-where name NOT LIKE 'adaptive_hash_%';
+select name, status from information_schema.innodb_metrics;
 
 # Turn on all monitor counters
 set global innodb_monitor_enable = all;

mysql-test/suite/sys_vars/r/sysvars_innodb,32bit.rdiff

 --- suite/sys_vars/r/sysvars_innodb.result
 +++ suite/sys_vars/r/sysvars_innodb.result
+@@ -54,7 +54,7 @@
+ GLOBAL_VALUE_ORIGIN	COMPILE-TIME
+ DEFAULT_VALUE	8
+ VARIABLE_SCOPE	GLOBAL
+-VARIABLE_TYPE	BIGINT UNSIGNED
++VARIABLE_TYPE	INT UNSIGNED
+ VARIABLE_COMMENT	Number of InnoDB Adaptive Hash Index Partitions (default 8)
+ NUMERIC_MIN_VALUE	1
+ NUMERIC_MAX_VALUE	512
 @@ -68,7 +68,7 @@
  GLOBAL_VALUE_ORIGIN	COMPILE-TIME
  DEFAULT_VALUE	150000

mysql-test/suite/sys_vars/r/sysvars_innodb.result

 select * from information_schema.system_variables
 where variable_name like 'innodb%' and
 variable_name not in (
-'innodb_adaptive_hash_index',       # only available WITH_INNODB_AHI
-'innodb_adaptive_hash_index_parts', # only available WITH_INNODB_AHI
 'innodb_disallow_writes',           # only available WITH_WSREP
 'innodb_numa_interleave',           # only available WITH_NUMA
 'innodb_sched_priority_cleaner',    # linux only
@@ -36,6 +34,34 @@ NUMERIC_BLOCK_SIZE	NULL
 ENUM_VALUE_LIST	NULL
 READ_ONLY	NO
 COMMAND_LINE_ARGUMENT	REQUIRED
+VARIABLE_NAME	INNODB_ADAPTIVE_HASH_INDEX
+SESSION_VALUE	NULL
+GLOBAL_VALUE	ON
+GLOBAL_VALUE_ORIGIN	COMPILE-TIME
+DEFAULT_VALUE	ON
+VARIABLE_SCOPE	GLOBAL
+VARIABLE_TYPE	BOOLEAN
+VARIABLE_COMMENT	Enable InnoDB adaptive hash index (enabled by default).  Disable with --skip-innodb-adaptive-hash-index.
+NUMERIC_MIN_VALUE	NULL
+NUMERIC_MAX_VALUE	NULL
+NUMERIC_BLOCK_SIZE	NULL
+ENUM_VALUE_LIST	OFF,ON
+READ_ONLY	NO
+COMMAND_LINE_ARGUMENT	OPTIONAL
+VARIABLE_NAME	INNODB_ADAPTIVE_HASH_INDEX_PARTS
+SESSION_VALUE	NULL
+GLOBAL_VALUE	8
+GLOBAL_VALUE_ORIGIN	COMPILE-TIME
+DEFAULT_VALUE	8
+VARIABLE_SCOPE	GLOBAL
+VARIABLE_TYPE	BIGINT UNSIGNED
+VARIABLE_COMMENT	Number of InnoDB Adaptive Hash Index Partitions (default 8)
+NUMERIC_MIN_VALUE	1
+NUMERIC_MAX_VALUE	512
+NUMERIC_BLOCK_SIZE	0
+ENUM_VALUE_LIST	NULL
+READ_ONLY	YES
+COMMAND_LINE_ARGUMENT	OPTIONAL
 VARIABLE_NAME	INNODB_ADAPTIVE_MAX_SLEEP_DELAY
 SESSION_VALUE	NULL
 GLOBAL_VALUE	150000

mysql-test/suite/sys_vars/t/innodb_adaptive_hash_index_basic.test

@@ -4,7 +4,6 @@
 #
 
 --source include/have_innodb.inc
---source include/have_innodb_ahi.inc
 
 SET @start_global_value = @@global.innodb_adaptive_hash_index;
 SELECT @start_global_value;

mysql-test/suite/sys_vars/t/innodb_adaptive_hash_index_parts_basic.test

 --source include/have_innodb.inc
---source include/have_innodb_ahi.inc
 
 ####################################################################
 #   Displaying default value                                       #

mysql-test/suite/sys_vars/t/sysvars_innodb.test

@@ -13,8 +13,6 @@ if (`select plugin_auth_version <= "5.6.34-79.1" from information_schema.plugins
 select * from information_schema.system_variables
   where variable_name like 'innodb%' and
   variable_name not in (
-    'innodb_adaptive_hash_index',       # only available WITH_INNODB_AHI
-    'innodb_adaptive_hash_index_parts', # only available WITH_INNODB_AHI
     'innodb_disallow_writes',           # only available WITH_WSREP
     'innodb_numa_interleave',           # only available WITH_NUMA
     'innodb_sched_priority_cleaner',    # linux only