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MDEV-22597 Add views for periods in information_schema

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Two new information_schema views are added:
* PERIOD table -- columns TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME,
  PERIOD_NAME, START_COLUMN_NAME, END_COLUMN_NAME.
* KEY_PERIOD_USAGE -- works similar to KEY_COLUMN_USAGE, but for periods.
  Columns CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, CONSTRAINT_NAME,
  TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME, PERIOD_NAME

Two new columns are added to the COLUMNS view:
 IS_SYSTEM_TIME_PERIOD_START, IS_SYSTEM_TIME_PERIOD_END - contain YES/NO.
This commit is contained in:
Nikita Malyavin
2023-08-30 01:04:34 +04:00
committed by Oleksandr Byelkin
parent 85f9df29c0
commit 4246c0fa01
37 changed files with 4840 additions and 4102 deletions
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10
mysql-test/suite/versioning/t/create.test
View File

@@ -3,6 +3,8 @@
--enable_prepare_warnings
select * from information_schema.periods;
--replace_result $default_engine DEFAULT_ENGINE $sys_datatype_expl SYS_DATATYPE NULL ''
eval create table t1 (
x1 int unsigned,
@@ -13,6 +15,10 @@ eval create table t1 (
--replace_result $default_engine DEFAULT_ENGINE $sys_datatype_expl SYS_DATATYPE
show create table t1;
select * from information_schema.periods where table_name = 't1';
select column_name, is_system_time_period_start, is_system_time_period_end
from information_schema.columns where table_name = 't1';
--query_vertical select table_catalog,table_schema,table_name,table_type,version,table_rows,data_free,auto_increment,check_time,table_collation,checksum,create_options,table_comment from information_schema.tables where table_name='t1'
--query_vertical select table_catalog,table_schema,table_name,column_name,ordinal_position,column_default,character_maximum_length,character_octet_length,character_set_name,collation_name,column_key,extra,column_comment,is_generated,generation_expression from information_schema.columns where table_name='t1'
@@ -23,6 +29,10 @@ create or replace table t1 (
--replace_result $default_engine DEFAULT_ENGINE
show create table t1;
select * from information_schema.periods where table_name = 't1';
select column_name, is_system_time_period_start, is_system_time_period_end
from information_schema.columns where table_name = 't1';
--replace_result $default_engine DEFAULT_ENGINE
--error ER_VERS_PERIOD_COLUMNS
eval create or replace table t1 (