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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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13
sql/sql_lex.h
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@ -4277,6 +4277,10 @@ public:
int add_period(Lex_ident name, Lex_ident_sys_st start, Lex_ident_sys_st end)
{
Table_period_info &info= create_info.period_info;
if (check_exists && info.name.streq(name))
return 0;
if (info.is_set())
{
my_error(ER_MORE_THAN_ONE_PERIOD, MYF(0));
@ -4285,10 +4289,11 @@ public:
info.set_period(start, end);
info.name= name;
Virtual_column_info *constr= new Virtual_column_info();
constr->expr= lt_creator.create(thd, create_item_ident_nosp(thd, &start),
create_item_ident_nosp(thd, &end));
add_constraint(&null_clex_str, constr, false);
info.constr= new Virtual_column_info();
info.constr->expr= lt_creator.create(thd,
create_item_ident_nosp(thd, &start),
create_item_ident_nosp(thd, &end));
add_constraint(&null_clex_str, info.constr, false);
return 0;
}