--getopt-prefix-matching command-line option

include/my_getopt.h

@@ -102,6 +102,7 @@ typedef void *(*my_getopt_value)(const char *, uint, const struct my_option *,
 extern char *disabled_my_option;
 extern my_bool my_getopt_print_errors;
 extern my_bool my_getopt_skip_unknown;
+extern my_bool my_getopt_prefix_matching;
 extern my_error_reporter my_getopt_error_reporter;
 
 extern int handle_options (int *argc, char ***argv, 

mysql-test/include/default_mysqld.cnf

@@ -16,6 +16,8 @@
 
 # Default values that applies to all MySQL Servers
 [mysqld]
+disable-getopt-prefix-matching
+
 open-files-limit=           1024
 local-infile
 character-set-server=      latin1

mysql-test/include/have_innodb.combinations

@@ -3,12 +3,14 @@ ignore-builtin-innodb
 plugin-load-add=$HA_INNODB_SO
 innodb
 innodb-cmpmem
+innodb-cmp-per-index
 innodb-trx
+innodb-locks
 innodb-buffer-pool-stats
 innodb-buffer-page
 innodb-buffer-page-lru
 innodb-sys-foreign
-innodb-sys-foreign-col
+innodb-sys-foreign-cols
 innodb-sys-tables
 innodb-metrics
 
@@ -17,24 +19,27 @@ ignore-builtin-innodb
 plugin-load-add=$HA_XTRADB_SO
 innodb
 innodb-cmpmem
+innodb-cmp-per-index
 innodb-trx
+innodb-locks
 innodb-buffer-pool-stats
 innodb-buffer-page
 innodb-buffer-page-lru
 innodb-sys-foreign
-innodb-sys-foreign-col
+innodb-sys-foreign-cols
 innodb-sys-tables
 innodb-metrics
 
 [xtradb]
 innodb
 innodb-cmpmem
+innodb-cmp-per-index
 innodb-trx
+innodb-locks
 innodb-metrics
 innodb-buffer-pool-stats
 innodb-buffer-page
 innodb-buffer-page-lru
 innodb-sys-foreign
-innodb-sys-foreign-col
+innodb-sys-foreign-cols
 innodb-sys-tables
-innodb-metrics

mysql-test/include/have_xtradb.combinations

@@ -4,10 +4,10 @@ plugin-load-add=$HA_XTRADB_SO
 innodb
 innodb-cmpmem
 innodb-trx
-innodb-sys-index
+innodb-sys-indexes
 
 [xtradb]
 innodb
 innodb-cmpmem
 innodb-trx
-innodb-sys-index
+innodb-sys-indexes

mysql-test/r/information_schema_all_engines.result

@@ -23,7 +23,6 @@ INNODB_CMPMEM
 INNODB_CMPMEM_RESET
 INNODB_CMP_PER_INDEX
 INNODB_CMP_RESET
-INNODB_LOCKS
 INNODB_LOCK_WAITS
 INNODB_SYS_COLUMNS
 INNODB_SYS_FIELDS
@@ -95,7 +94,6 @@ INNODB_CMPMEM	page_size
 INNODB_CMPMEM_RESET	page_size
 INNODB_CMP_PER_INDEX	database_name
 INNODB_CMP_RESET	page_size
-INNODB_LOCKS	lock_id
 INNODB_LOCK_WAITS	requesting_trx_id
 INNODB_SYS_COLUMNS	TABLE_ID
 INNODB_SYS_FIELDS	INDEX_ID
@@ -167,7 +165,6 @@ INNODB_CMPMEM	page_size
 INNODB_CMPMEM_RESET	page_size
 INNODB_CMP_PER_INDEX	database_name
 INNODB_CMP_RESET	page_size
-INNODB_LOCKS	lock_id
 INNODB_LOCK_WAITS	requesting_trx_id
 INNODB_SYS_COLUMNS	TABLE_ID
 INNODB_SYS_FIELDS	INDEX_ID
@@ -244,7 +241,6 @@ INNODB_CMPMEM	information_schema.INNODB_CMPMEM	1
 INNODB_CMPMEM_RESET	information_schema.INNODB_CMPMEM_RESET	1
 INNODB_CMP_PER_INDEX	information_schema.INNODB_CMP_PER_INDEX	1
 INNODB_CMP_RESET	information_schema.INNODB_CMP_RESET	1
-INNODB_LOCKS	information_schema.INNODB_LOCKS	1
 INNODB_LOCK_WAITS	information_schema.INNODB_LOCK_WAITS	1
 INNODB_SYS_COLUMNS	information_schema.INNODB_SYS_COLUMNS	1
 INNODB_SYS_FIELDS	information_schema.INNODB_SYS_FIELDS	1
@@ -306,7 +302,6 @@ Database: information_schema
 | INNODB_CMPMEM_RESET                   |
 | INNODB_CMP_PER_INDEX                  |
 | INNODB_CMP_RESET                      |
-| INNODB_LOCKS                          |
 | INNODB_LOCK_WAITS                     |
 | INNODB_SYS_COLUMNS                    |
 | INNODB_SYS_FIELDS                     |
@@ -368,7 +363,6 @@ Database: INFORMATION_SCHEMA
 | INNODB_CMPMEM_RESET                   |
 | INNODB_CMP_PER_INDEX                  |
 | INNODB_CMP_RESET                      |
-| INNODB_LOCKS                          |
 | INNODB_LOCK_WAITS                     |
 | INNODB_SYS_COLUMNS                    |
 | INNODB_SYS_FIELDS                     |
@@ -411,5 +405,5 @@ Wildcard: inf_rmation_schema
 | information_schema |
 SELECT table_schema, count(*) FROM information_schema.TABLES WHERE table_schema IN ('mysql', 'INFORMATION_SCHEMA', 'test', 'mysqltest') GROUP BY TABLE_SCHEMA;
 table_schema	count(*)
-information_schema	57
+information_schema	56
 mysql	30

mysql-test/r/mysqld--help.result

@@ -205,6 +205,10 @@ The following options may be given as the first argument:
  mysql.general_logif --log-output=TABLE is used
  --general-log-file=name 
  Log connections and queries to given file
+ --getopt-prefix-matching 
+ Recognize command-line options by their unambiguos
+ prefixes.
+ (Defaults to on; use --skip-getopt-prefix-matching to disable.)
  --group-concat-max-len=# 
  The maximum length of the result of function 
  GROUP_CONCAT()
@@ -1152,6 +1156,7 @@ ft-query-expansion-limit 20
 ft-stopword-file (No default value)
 gdb FALSE
 general-log FALSE
+getopt-prefix-matching TRUE
 group-concat-max-len 1024
 gtid-domain-id 0
 gtid-ignore-duplicates FALSE

mysql-test/suite/engines/funcs/t/rpl_skip_error-slave.opt

@@ -1 +1 @@
---slave-skip-error=1053,1062,1582
+--slave-skip-errors=1053,1062,1582

mysql-test/suite/maria/maria-recovery2-master.opt

@@ -1 +1 @@
---skip-stack-trace --skip-core-file --loose-aria-log-dir-path=$MYSQLTEST_VARDIR/tmp --myisam-recover=
+--skip-stack-trace --skip-core-file --loose-aria-log-dir-path=$MYSQLTEST_VARDIR/tmp --myisam-recover-options=

mysql-test/suite/parts/t/partition_debug_myisam-master.opt

@@ -1 +1 @@
---skip-stack-trace --skip-core-file --myisam-recover-option=off
+--skip-stack-trace --skip-core-file --myisam-recover-options=off

mysql-test/suite/parts/t/partition_recover_myisam-master.opt

@@ -1 +1 @@
---myisam-recover
+--myisam-recover-options

mysql-test/suite/parts/t/partition_repair_myisam-master.opt

@@ -1 +1 @@
---myisam-recover=off
+--myisam-recover-options=off

mysql-test/suite/perfschema/t/hostcache_ipv6_addrinfo_again_allow-master.opt

@@ -1 +1 @@
---bind-addr=::
+--bind-address=::

mysql-test/suite/perfschema/t/hostcache_ipv6_addrinfo_again_deny-master.opt

@@ -1 +1 @@
---bind-addr=::
+--bind-address=::

mysql-test/suite/perfschema/t/hostcache_ipv6_addrinfo_bad_allow-master.opt

@@ -1 +1 @@
---bind-addr=::
+--bind-address=::

mysql-test/suite/perfschema/t/hostcache_ipv6_addrinfo_bad_deny-master.opt

@@ -1 +1 @@
---bind-addr=::
+--bind-address=::

mysql-test/suite/perfschema/t/hostcache_ipv6_addrinfo_good_allow-master.opt

@@ -1 +1 @@
---bind-addr=::
+--bind-address=::

mysql-test/suite/perfschema/t/hostcache_ipv6_addrinfo_good_deny-master.opt

@@ -1 +1 @@
---bind-addr=::
+--bind-address=::

mysql-test/suite/perfschema/t/hostcache_ipv6_addrinfo_noname_allow-master.opt

@@ -1 +1 @@
---bind-addr=::
+--bind-address=::

mysql-test/suite/perfschema/t/hostcache_ipv6_addrinfo_noname_deny-master.opt

@@ -1 +1 @@
---bind-addr=::
+--bind-address=::

mysql-test/suite/perfschema/t/hostcache_ipv6_auth_plugin-master.opt

@@ -1 +1 @@
---bind-addr=::
+--bind-address=::

mysql-test/suite/perfschema/t/hostcache_ipv6_blocked-master.opt

@@ -1 +1 @@
---bind-addr=::
+--bind-address=::

mysql-test/suite/perfschema/t/hostcache_ipv6_max_con-master.opt

@@ -1,2 +1,2 @@
---bind-addr=::
+--bind-address=::
 --max-user-connections=1024

mysql-test/suite/perfschema/t/hostcache_ipv6_nameinfo_again_allow-master.opt

@@ -1 +1 @@
---bind-addr=::
+--bind-address=::

mysql-test/suite/perfschema/t/hostcache_ipv6_nameinfo_again_deny-master.opt

@@ -1 +1 @@
---bind-addr=::
+--bind-address=::

mysql-test/suite/perfschema/t/hostcache_ipv6_nameinfo_noname_allow-master.opt

@@ -1 +1 @@
---bind-addr=::
+--bind-address=::

mysql-test/suite/perfschema/t/hostcache_ipv6_nameinfo_noname_deny-master.opt

@@ -1 +1 @@
---bind-addr=::
+--bind-address=::

mysql-test/suite/perfschema/t/hostcache_ipv6_passwd-master.opt

@@ -1 +1 @@
---bind-addr=::
+--bind-address=::

mysql-test/suite/perfschema/t/hostcache_ipv6_ssl-master.opt

@@ -1 +1 @@
---bind-addr=::
+--bind-address=::

mysql-test/suite/perfschema/t/short_option_1-master.opt

@@ -1 +1 @@
--a -Cutf8 --collation=utf8_bin -T12 -W3
+-a -Cutf8 --collation-server=utf8_bin -T12 -W3

mysql-test/suite/perfschema/t/start_server_nothing-master.opt

@@ -35,5 +35,5 @@
 --loose-performance_schema_events_statements_history_long_size=0
 --loose-performance_schema_events_statements_history_size=0
 
---loose-performance_schema_session_connect_attrs=0
+--loose-performance_schema_session_connect_attrs_size=0
 

mysql-test/suite/rpl/t/rpl_skip_error-slave.opt

@@ -1 +1 @@
---slave-skip-error=1062
+--slave-skip-errors=1062

mysql-test/suite/rpl/t/rpl_skip_incident-slave.opt

@@ -1 +1 @@
---slave-skip-error=1590
+--slave-skip-errors=1590

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

@@ -386,7 +386,7 @@ COMMAND_LINE_ARGUMENT	REQUIRED
 VARIABLE_NAME	INNODB_CMP_PER_INDEX_ENABLED
 SESSION_VALUE	NULL
 GLOBAL_VALUE	OFF
-GLOBAL_VALUE_ORIGIN	CONFIG
+GLOBAL_VALUE_ORIGIN	COMPILE-TIME
 DEFAULT_VALUE	OFF
 VARIABLE_SCOPE	GLOBAL
 VARIABLE_TYPE	BOOLEAN
@@ -1114,7 +1114,7 @@ COMMAND_LINE_ARGUMENT	REQUIRED
 VARIABLE_NAME	INNODB_LOCKS_UNSAFE_FOR_BINLOG
 SESSION_VALUE	NULL
 GLOBAL_VALUE	OFF
-GLOBAL_VALUE_ORIGIN	CONFIG
+GLOBAL_VALUE_ORIGIN	COMPILE-TIME
 DEFAULT_VALUE	OFF
 VARIABLE_SCOPE	GLOBAL
 VARIABLE_TYPE	BOOLEAN

mysql-test/suite/sys_vars/t/delay_key_write_func-master.opt

@@ -1,2 +1,2 @@
---myisam-recover=BACKUP,FORCE
+--myisam-recover-options=BACKUP,FORCE
 

mysql-test/suite/sys_vars/t/ignore_db_dirs_basic-master.opt

@@ -1,11 +1,11 @@
---ignore-db-dir=a
+--ignore-db-dirs=a
---ignore-db-dir=b
+--ignore-db-dirs=b
---ignore-db-dir=c
+--ignore-db-dirs=c
---ignore-db-dir=
+--ignore-db-dirs=
---ignore-db-dir=d
+--ignore-db-dirs=d
---ignore-db-dir x
+--ignore-db-dirs x
---ignore-db-dir=
+--ignore-db-dirs=
---ignore-db-dir=e
+--ignore-db-dirs=e
---ignore-db-dir=lost+found
+--ignore-db-dirs=lost+found
---ignore-db-dir=.mysqlgui
+--ignore-db-dirs=.mysqlgui
---ignore-db-dir=ignored_db
+--ignore-db-dirs=ignored_db

mysql-test/t/merge_recover-master.opt

@@ -1 +1 @@
---myisam-recover=force
+--myisam-recover-options=force

mysql-test/t/show_check-master.opt

@@ -1 +1 @@
---log-output=table,file --slow-query-log --log-queries-not-using-indexes --myisam-recover=""
+--log-output=table,file --slow-query-log --log-queries-not-using-indexes --myisam-recover-options=""

mysys/my_getopt.c

@@ -56,7 +56,7 @@ enum enum_special_opt
 char *disabled_my_option= (char*) "0";
 char *enabled_my_option= (char*) "1";
 
-/* 
+/*
    This is a flag that can be set in client programs. 0 means that
    my_getopt will not print error messages, but the client should do
    it by itself
@@ -64,13 +64,21 @@ char *enabled_my_option= (char*) "1";
 
 my_bool my_getopt_print_errors= 1;
 
-/* 
+/*
    This is a flag that can be set in client programs. 1 means that
    my_getopt will skip over options it does not know how to handle.
 */
 
 my_bool my_getopt_skip_unknown= 0;
 
+
+/*
+   This is a flag that can be set in client programs. 1 means that
+   my_getopt will reconize command line options by their unambiguous
+   prefixes. 0 means an option must be always specified in full.
+*/
+my_bool my_getopt_prefix_matching= 1;
+
 static void default_reporter(enum loglevel level,
                              const char *format, ...)
 {
@@ -851,6 +859,9 @@ static int findopt(char *optpat, uint length,
       if (!opt->name[length])		/* Exact match */
 	DBUG_RETURN(1);
 
+      if (!my_getopt_prefix_matching)
+        continue;
+
       if (!count)
       {
         /* We only need to know one prev */
@@ -867,6 +878,14 @@ static int findopt(char *optpat, uint length,
       }
     }
   }
+
+  if (count == 1)
+    my_getopt_error_reporter(INFORMATION_LEVEL,
+                             "Using unique option prefix '%.*s' is error-prone "
+                             "and can break in the future. "
+                             "Please use the full name '%s' instead.",
+                             length, optpat, *ffname);
+
   DBUG_RETURN(count);
 }
 

sql/mysqld.cc

@@ -839,8 +839,12 @@ static struct my_option pfs_early_options[]=
     "Default startup value for the statements_digest consumer.",
     &pfs_param.m_consumer_statement_digest_enabled,
     &pfs_param.m_consumer_statement_digest_enabled, 0,
-    GET_BOOL, OPT_ARG, TRUE, 0, 0, 0, 0, 0}
+    GET_BOOL, OPT_ARG, TRUE, 0, 0, 0, 0, 0},
 #endif /* WITH_PERFSCHEMA_STORAGE_ENGINE */
+  {"getopt-prefix-matching", 0,
+    "Recognize command-line options by their unambiguos prefixes.",
+    &my_getopt_prefix_matching, &my_getopt_prefix_matching, 0, GET_BOOL,
+    NO_ARG, 1, 0, 1, 0, 0, 0}
 };
 
 #ifdef HAVE_PSI_INTERFACE