SET @@session.default_storage_engine = 'MyISAM';
# RAND()
create or replace table t1 (b double as (rand()));
create or replace table t1 (b double as (rand()) PERSISTENT);
ERROR HY000: Function or expression 'rand()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# LOAD_FILE()
create or replace table t1 (a varchar(64), b varchar(1024) as (load_file(a)));
ERROR HY000: Function or expression 'load_file()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# CURDATE()
create or replace table t1 (a datetime as (curdate()) PERSISTENT);
ERROR HY000: Function or expression 'curdate()' cannot be used in the GENERATED ALWAYS AS clause of `a`
# CURRENT_DATE(), CURRENT_DATE
create or replace table t1 (a datetime as (current_date) PERSISTENT);
ERROR HY000: Function or expression 'curdate()' cannot be used in the GENERATED ALWAYS AS clause of `a`
create or replace table t1 (a datetime as (current_date()) PERSISTENT);
ERROR HY000: Function or expression 'curdate()' cannot be used in the GENERATED ALWAYS AS clause of `a`
# CURRENT_TIME(), CURRENT_TIME
create or replace table t1 (a datetime as (current_time) PERSISTENT);
ERROR HY000: Function or expression 'curtime()' cannot be used in the GENERATED ALWAYS AS clause of `a`
create or replace table t1 (a datetime as (current_time()) PERSISTENT);
ERROR HY000: Function or expression 'curtime()' cannot be used in the GENERATED ALWAYS AS clause of `a`
# CURRENT_TIMESTAMP(), CURRENT_TIMESTAMP
create or replace table t1 (a datetime as (current_timestamp()) PERSISTENT);
ERROR HY000: Function or expression 'current_timestamp()' cannot be used in the GENERATED ALWAYS AS clause of `a`
create or replace table t1 (a datetime as (current_timestamp) PERSISTENT);
ERROR HY000: Function or expression 'current_timestamp()' cannot be used in the GENERATED ALWAYS AS clause of `a`
# CURTIME()
create or replace table t1 (a datetime as (curtime()) PERSISTENT);
ERROR HY000: Function or expression 'curtime()' cannot be used in the GENERATED ALWAYS AS clause of `a`
# LOCALTIME(), LOCALTIME
create or replace table t1 (a datetime, b varchar(10) as (localtime()) PERSISTENT);
ERROR HY000: Function or expression 'current_timestamp()' cannot be used in the GENERATED ALWAYS AS clause of `b`
create or replace table t1 (a datetime, b varchar(10) as (localtime) PERSISTENT);
ERROR HY000: Function or expression 'current_timestamp()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# LOCALTIMESTAMP, LOCALTIMESTAMP()(v4.0.6)
create or replace table t1 (a datetime, b varchar(10) as (localtimestamp()) PERSISTENT);
ERROR HY000: Function or expression 'current_timestamp()' cannot be used in the GENERATED ALWAYS AS clause of `b`
create or replace table t1 (a datetime, b varchar(10) as (localtimestamp) PERSISTENT);
ERROR HY000: Function or expression 'current_timestamp()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# NOW()
create or replace table t1 (a datetime, b varchar(10) as (now()) PERSISTENT);
ERROR HY000: Function or expression 'current_timestamp()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# SYSDATE()
create or replace table t1 (a int, b varchar(10) as (sysdate()) PERSISTENT);
ERROR HY000: Function or expression 'sysdate()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# UNIX_TIMESTAMP()
create or replace table t1 (a datetime, b datetime as (unix_timestamp()) PERSISTENT);
ERROR HY000: Function or expression 'unix_timestamp()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# UTC_DATE()
create or replace table t1 (a datetime, b datetime as (utc_date()) PERSISTENT);
ERROR HY000: Function or expression 'utc_date()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# UTC_TIME()
create or replace table t1 (a datetime, b datetime as (utc_time()) PERSISTENT);
ERROR HY000: Function or expression 'utc_time()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# UTC_TIMESTAMP()
create or replace table t1 (a datetime, b datetime as (utc_timestamp()) PERSISTENT);
ERROR HY000: Function or expression 'utc_timestamp()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# WEEK() - one argument version
create or replace table t1 (a datetime, b datetime as (week(a)) PERSISTENT);
ERROR HY000: Function or expression 'week()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# MATCH()
create or replace table t1 (a varchar(32), b bool as (match a against ('sample text')) PERSISTENT);
ERROR HY000: Function or expression 'match ... against()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# BENCHMARK()
create or replace table t1 (a varchar(1024), b varchar(1024) as (benchmark(a,3)));
ERROR HY000: Function or expression 'benchmark()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# CHARSET()
create or replace table t1 (a varchar(64), b varchar(64) as (charset(a)) PERSISTENT);
# COERCIBILITY()
create or replace table t1 (a varchar(64), b int as (coercibility(a)) PERSISTENT);
# COLLATION()
create or replace table t1 (a varchar(64), b varchar(64) as (collation(a)) PERSISTENT);
# CONNECTION_ID()
create or replace table t1 (a int as (connection_id()));
create or replace table t1 (a int as (connection_id()) PERSISTENT);
ERROR HY000: Function or expression 'connection_id()' cannot be used in the GENERATED ALWAYS AS clause of `a`
# DATABASE()
create or replace table t1 (a varchar(32) as (database()));
create or replace table t1 (a varchar(1024), b varchar(1024) as (database()) PERSISTENT);
ERROR HY000: Function or expression 'database()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# FOUND_ROWS()
create or replace table t1 (a varchar(1024), b varchar(1024) as (found_rows()));
ERROR HY000: Function or expression 'found_rows()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# GET_LOCK()
create or replace table t1 (a varchar(1024), b varchar(1024) as (get_lock(a,10)));
ERROR HY000: Function or expression 'get_lock()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# IS_FREE_LOCK()
create or replace table t1 (a varchar(1024), b varchar(1024) as (is_free_lock(a)));
ERROR HY000: Function or expression 'is_free_lock()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# IS_USED_LOCK()
create or replace table t1 (a varchar(1024), b varchar(1024) as (is_used_lock(a)));
ERROR HY000: Function or expression 'is_used_lock()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# LAST_INSERT_ID()
create or replace table t1 (a int as (last_insert_id()));
ERROR HY000: Function or expression 'last_insert_id()' cannot be used in the GENERATED ALWAYS AS clause of `a`
# MASTER_POS_WAIT()
create or replace table t1 (a varchar(32), b int as (master_pos_wait(a,0,2)));
ERROR HY000: Function or expression 'master_pos_wait()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# NAME_CONST()
create or replace table t1 (a varchar(32) as (name_const('test',1)));
ERROR HY000: Function or expression 'name_const()' cannot be used in the GENERATED ALWAYS AS clause of `a`
# RELEASE_LOCK()
create or replace table t1 (a varchar(32), b int as (release_lock(a)));
ERROR HY000: Function or expression 'release_lock()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# ROW_COUNT()
create or replace table t1 (a int as (row_count()));
ERROR HY000: Function or expression 'row_count()' cannot be used in the GENERATED ALWAYS AS clause of `a`
# SCHEMA()
create or replace table t1 (a varchar(32) as (schema()) PERSISTENT);
ERROR HY000: Function or expression 'database()' cannot be used in the GENERATED ALWAYS AS clause of `a`
# SESSION_USER()
create or replace table t1 (a varchar(32) as (session_user()) PERSISTENT);
ERROR HY000: Function or expression 'user()' cannot be used in the GENERATED ALWAYS AS clause of `a`
# SLEEP()
create or replace table t1 (a int, b int as (sleep(a)));
ERROR HY000: Function or expression 'sleep()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# SYSTEM_USER()
create or replace table t1 (a varchar(32) as (system_user()) PERSISTENT);
ERROR HY000: Function or expression 'user()' cannot be used in the GENERATED ALWAYS AS clause of `a`
# USER()
create or replace table t1 (a varchar(1024), b varchar(1024) as (user()) PERSISTENT);
ERROR HY000: Function or expression 'user()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# UUID_SHORT()
create or replace table t1 (a varchar(1024) as (uuid_short()) PERSISTENT);
ERROR HY000: Function or expression 'uuid_short()' cannot be used in the GENERATED ALWAYS AS clause of `a`
# UUID()
create or replace table t1 (a varchar(1024) as (uuid()) PERSISTENT);
ERROR HY000: Function or expression 'uuid()' cannot be used in the GENERATED ALWAYS AS clause of `a`
# VALUES()
create or replace table t1 (a varchar(1024), b varchar(1024) as (value(a)));
ERROR HY000: Function or expression 'value()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# VERSION()
create or replace table t1 (a varchar(1024), b varchar(1024) as (version()) PERSISTENT);
ERROR HY000: Function or expression 'version()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# ENCRYPT()
create or replace table t1 (a varchar(1024), b varchar(1024) as (encrypt(a)) PERSISTENT);
# Stored procedures
create procedure p1()
begin
select current_user();
end //
create function f1()
returns int
begin
return 1;
end //
create or replace table t1 (a int as (p1()) PERSISTENT);
ERROR HY000: Function or expression '`p1`()' cannot be used in the GENERATED ALWAYS AS clause of `a`
create or replace table t1 (a int as (f1()) PERSISTENT);
ERROR HY000: Function or expression '`f1`()' cannot be used in the GENERATED ALWAYS AS clause of `a`
drop procedure p1;
drop function f1;
# Unknown functions
create or replace table t1 (a int as (f1()) PERSISTENT);
ERROR HY000: Function or expression '`f1`()' cannot be used in the GENERATED ALWAYS AS clause of `a`
#
# GROUP BY FUNCTIONS
#
# AVG()
create or replace table t1 (a int, b int as (avg(a)));
ERROR HY000: Function or expression 'avg()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# BIT_AND()
create or replace table t1 (a int, b int as (bit_and(a)));
ERROR HY000: Function or expression 'bit_and()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# BIT_OR()
create or replace table t1 (a int, b int as (bit_or(a)));
ERROR HY000: Function or expression 'bit_or()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# BIT_XOR()
create or replace table t1 (a int, b int as (bit_xor(a)));
ERROR HY000: Function or expression 'bit_xor()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# COUNT(DISTINCT)
create or replace table t1 (a int, b int as (count(distinct a)));
ERROR HY000: Function or expression 'count(distinct )' cannot be used in the GENERATED ALWAYS AS clause of `b`
# COUNT()
create or replace table t1 (a int, b int as (count(a)));
ERROR HY000: Function or expression 'count()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# GROUP_CONCAT()
create or replace table t1 (a varchar(32), b int as (group_concat(a,'')));
ERROR HY000: Function or expression 'group_concat()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# MAX()
create or replace table t1 (a int, b int as (max(a)));
ERROR HY000: Function or expression 'max()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# MIN()
create or replace table t1 (a int, b int as (min(a)));
ERROR HY000: Function or expression 'min()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# STD()
create or replace table t1 (a int, b int as (std(a)));
ERROR HY000: Function or expression 'std()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# STDDEV_POP()
create or replace table t1 (a int, b int as (stddev_pop(a)));
ERROR HY000: Function or expression 'std()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# STDDEV_SAMP()
create or replace table t1 (a int, b int as (stddev_samp(a)));
ERROR HY000: Function or expression 'std()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# STDDEV()
create or replace table t1 (a int, b int as (stddev(a)));
ERROR HY000: Function or expression 'std()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# SUM()
create or replace table t1 (a int, b int as (sum(a)));
ERROR HY000: Function or expression 'sum()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# VAR_POP()
create or replace table t1 (a int, b int as (var_pop(a)));
ERROR HY000: Function or expression 'variance()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# VAR_SAMP()
create or replace table t1 (a int, b int as (var_samp(a)));
ERROR HY000: Function or expression 'var_samp()' cannot be used in the GENERATED ALWAYS AS clause of `b`
# VARIANCE()
create or replace table t1 (a int, b int as (variance(a)));
ERROR HY000: Function or expression 'variance()' cannot be used in the GENERATED ALWAYS AS clause of `b`
#
# XML FUNCTIONS
#
# ExtractValue()
create or replace table t1 (a varchar(1024), b varchar(1024) as (ExtractValue(a,'//b[$@j]')) PERSISTENT);
# UpdateXML()
create or replace table t1 (a varchar(1024), b varchar(1024) as (UpdateXML(a,'/a','<e>fff</e>')) PERSISTENT);
#
# Sub-selects
#
create or replace table t1 (a int);
create or replace table t2 (a int, b int as (select count(*) from t1));
ERROR HY000: Function or expression 'select ...' cannot be used in the GENERATED ALWAYS AS clause of `b`
drop table t1;
create or replace table t1 (a int, b int as ((select 1)));
ERROR HY000: Function or expression 'select ...' cannot be used in the GENERATED ALWAYS AS clause of `b`
create or replace table t1 (a int, b int as (a+(select 1)));
ERROR HY000: Function or expression 'select ...' cannot be used in the GENERATED ALWAYS AS clause of `b`
#
# SP functions
#
drop function if exists sub1;
create function sub1(i int) returns int deterministic
return i+1;
select sub1(1);
sub1(1)
2
create or replace table t1 (a int, b int as (a+sub3(1)));
ERROR HY000: Function or expression '`sub3`()' cannot be used in the GENERATED ALWAYS AS clause of `b`
drop function sub1;
#
# Long expression
create or replace table t1 (a int, b varchar(300) as (concat(a,'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa')));
drop table t1;
create or replace table t1 (a int, b varchar(16384) as (concat(a,'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa')));
ERROR HY000: Expression in the GENERATED ALWAYS AS clause is too big
#
# Constant expression
create or replace table t1 (a int as (PI()) PERSISTENT);
drop table if exists t1;
create table t1 (a timestamp, b varchar(255) as (date_format(a, '%w %a %m %b')) stored);
ERROR HY000: Function or expression 'date_format()' cannot be used in the GENERATED ALWAYS AS clause of `b`