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SQL, IB: unversioned fields with ALTER TABLE [fixes #401]

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Eugene Kosov 2017-12-15 20:37:36 +03:00 • committed by GitHub
parent 4624e565f3
commit 9b55cc73f1
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7 changed files with 20 additions and 1 deletions
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5
mysql-test/suite/versioning/r/alter.result
View file

@ -512,5 +512,10 @@ alter table t add system versioning;
ERROR HY000: Table `t` is already system-versioned table
alter table t add system versioning, drop system versioning;
ERROR HY000: Table `t` is already system-versioned table
set @@versioning_alter_history=keep;
create or replace table t(x int, y int) with system versioning engine=innodb;
alter table t modify y int without system versioning;
insert into t values(1, 1);
update t set y=2;
drop database test;
create database test;

6
mysql-test/suite/versioning/t/alter.test
View file

@ -349,5 +349,11 @@ alter table t add system versioning;
--error ER_VERS_ALREADY_VERSIONED
alter table t add system versioning, drop system versioning;
set @@versioning_alter_history=keep;
create or replace table t(x int, y int) with system versioning engine=innodb;
alter table t modify y int without system versioning;
insert into t values(1, 1);
update t set y=2;
drop database test;
create database test;

2
sql/handler.h
View file

@ -2168,6 +2168,8 @@ public:
static const HA_ALTER_FLAGS ALTER_DROP_HISTORICAL = 1ULL << 41;
static const HA_ALTER_FLAGS ALTER_COLUMN_UNVERSIONED = 1ULL << 42;
/**
Create options (like MAX_ROWS) for the new version of table.

3
sql/sql_alter.h
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@ -95,7 +95,8 @@ public:
// Set for ADD [COLUMN] FIRST | AFTER
ALTER_COLUMN_ORDER = 1L << 25,
ALTER_ADD_CHECK_CONSTRAINT = 1L << 27,
ALTER_DROP_CHECK_CONSTRAINT = 1L << 28
ALTER_DROP_CHECK_CONSTRAINT = 1L << 28,
ALTER_COLUMN_UNVERSIONED = 1L << 29,
};
enum enum_enable_or_disable { LEAVE_AS_IS, ENABLE, DISABLE };

2
sql/sql_table.cc
View file

@ -6562,6 +6562,8 @@ static bool fill_alter_inplace_info(THD *thd,
ha_alter_info->handler_flags|= Alter_inplace_info::ALTER_DROP_CHECK_CONSTRAINT;
if (thd->variables.vers_alter_history == VERS_ALTER_HISTORY_DROP)
ha_alter_info->handler_flags|= Alter_inplace_info::ALTER_DROP_HISTORICAL;
if (alter_info->flags & Alter_info::ALTER_COLUMN_UNVERSIONED)
ha_alter_info->handler_flags|= Alter_inplace_info::ALTER_COLUMN_UNVERSIONED;
/*
If we altering table with old VARCHAR fields we will be automatically

2
sql/sql_yacc.yy
View file

@ -7112,11 +7112,13 @@ serial_attribute:
with_or_without_system:
WITH_SYSTEM_SYM
{
Lex->alter_info.flags|= Alter_info::ALTER_COLUMN_UNVERSIONED;
Lex->create_info.vers_info.versioned_fields= true;
$$= Column_definition::WITH_VERSIONING;
}
| WITHOUT SYSTEM
{
Lex->alter_info.flags|= Alter_info::ALTER_COLUMN_UNVERSIONED;
Lex->create_info.vers_info.unversioned_fields= true;
$$= Column_definition::WITHOUT_VERSIONING;
}

1
storage/innobase/handler/handler0alter.cc
View file

@ -87,6 +87,7 @@ static const Alter_inplace_info::HA_ALTER_FLAGS INNOBASE_ALTER_REBUILD
/*
| Alter_inplace_info::ALTER_STORED_COLUMN_TYPE
*/
| Alter_inplace_info::ALTER_COLUMN_UNVERSIONED
;
/** Operations that require changes to data */