MDEV-22563 Segfault on duplicate free of Item_func_in::array

Same array instance in two Item_func_in instances. First Item_func_in
instance is freed on table close. Second one is freed on
cleanup_after_query().

get_copy() depends on copy ctor for copying an item and hence does
shallow copy for default copy ctor. Use build_clone() for deep copy of
Item_func_in.

1 files changed, 35 insertions, 0 deletions

diff --git a/mysql-test/main/alter_table.result b/mysql-test/main/alter_table.result
index 3d21b5c350d..8e8b4362ed8 100644
--- a/mysql-test/main/alter_table.result
+++ b/mysql-test/main/alter_table.result
@@ -2559,3 +2559,38 @@ drop view v1;
 #
 # End of 10.3 tests
 #
+#
+# MDEV-22563 Segfault on duplicate free of Item_func_in::array
+#
+create or replace table person_principal (
+person_id bigint not null,
+insurant_id varchar(10) not null,
+principal_id bigint not null,
+principal_officer_id bigint not null,
+nursing_degree tinyint null,
+nursing_degree_valid_from date not null default cast(current_timestamp(6) as date),
+carma_user_id bigint not null,
+current_date_time timestamp(6) not null default current_timestamp(6) on update current_timestamp(6),
+constraint pk_person_principal primary key (person_id asc),
+constraint ck_person_principal_nursing_degree check (nursing_degree in (1,2,3,4,5)));
+Warnings:
+Warning	1280	Name 'pk_person_principal' ignored for PRIMARY key.
+create or replace table person_principal_hist (
+person_id bigint not null,
+insurant_id varchar(10) not null,
+principal_id bigint not null,
+principal_officer_id bigint not null,
+nursing_degree tinyint null,
+nursing_degree_valid_from date not null default cast(now() as date),
+carma_user_id bigint not null,
+orig_date_time datetime(6) not null,
+constraint pk_person_principal_hist primary key (person_id asc, orig_date_time asc),
+constraint ck_person_principal_hist_nursing_degree check (nursing_degree in (1,2,3,4,5)));
+Warnings:
+Warning	1280	Name 'pk_person_principal_hist' ignored for PRIMARY key.
+insert into person_principal (person_id, insurant_id, principal_id, principal_officer_id, nursing_degree, nursing_degree_valid_from, carma_user_id)
+values (1, 'A123456789', 5, 1, 1, '2018-05-06', 1);
+alter table person_principal add column if not exists date_mask tinyint null;
+update person_principal set date_mask = 0;
+alter table person_principal modify column date_mask tinyint not null;
+drop tables person_principal_hist, person_principal;