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MDEV-16975 Application-time periods: ALTER TABLE

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* implicit period constraint is hidden and cannot be dropped independently
* create...like and create...select support
This commit is contained in:
Nikita Malyavin
2019-02-04 09:37:39 +10:00
committed by Sergei Golubchik
parent b2bd52290a
commit 6294516a56
17 changed files with 533 additions and 53 deletions
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15
sql/handler.h
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@ -1968,11 +1968,15 @@ enum vers_sys_type_t
VERS_TRX_ID
};
struct Table_period_info
struct Table_period_info: Sql_alloc
{
Table_period_info() {}
Table_period_info() :
create_if_not_exists(false),
constr(NULL) {}
Table_period_info(const char *name_arg, size_t size) :
name(name_arg, size) {}
name(name_arg, size),
create_if_not_exists(false),
constr(NULL) {}
Lex_ident name;
@ -1986,6 +1990,8 @@ struct Table_period_info
Lex_ident end;
};
start_end_t period;
bool create_if_not_exists;
Virtual_column_info *constr;
bool is_set() const
{
@ -1998,6 +2004,7 @@ struct Table_period_info
period.start= start;
period.end= end;
}
bool check_field(const Create_field* f, const Lex_ident& f_name) const;
};
struct Vers_parse_info: public Table_period_info
@ -2168,7 +2175,9 @@ struct Table_scope_and_contents_source_st:
bool fix_create_fields(THD *thd, Alter_info *alter_info,
const TABLE_LIST &create_table,
bool create_select= false);
bool fix_period_fields(THD *thd, Alter_info *alter_info);
bool check_fields(THD *thd, Alter_info *alter_info, TABLE_LIST &create_table);
bool check_period_fields(THD *thd, Alter_info *alter_info);
bool vers_fix_system_fields(THD *thd, Alter_info *alter_info,
const TABLE_LIST &create_table,