By default, when the last connection to a in-memory database is closed, the contents are lost.
This can be disabled by adding this to the database URL: ;DB_CLOSE_DELAY=-1
That means to keep the contents of an in-memory database as long as the virtual machine is alive, use
jdbc:h2:mem:test;DB_CLOSE_DELAY=-1
document translation (what files to translate)
Known Problems:
link to history page
Creating a table from GROUP_CONCAT doesn't work if the data was longer than 255 characters
GROUP_CONCAT more than 255
You are right, this is a bug. It was introduced by the getDisplaySize change. Unfortunately there is no workaround at the moment... I will fix for the next release and add a test case. I will also check if other things stopped working because of this change.
Search for 255 in whole project
CryptGenRandom.
drop table test;
create table test(id int primary key, name varchar(255));
> SELECT X.DIR_NUM, X.CNT FROM (select dir_num, count(*) as cnt from multi_pages t, b_holding bh where t.bh_id=bh.id and bh.site='Hello' group by dir_num) X /* SELECT DIR_NUM, COUNT(*) AS CNT FROM PUBLIC.MULTI_PAGES T /++ PUBLIC.MULTI_PAGES_TABLE_SCAN ++/ INNER JOIN PUBLIC.B_HOLDING BH /++ PUBLIC.PRIMARY_KEY_1: ID = T.BH_ID ++/ WHERE (BH.SITE = 'Hello') AND (T.BH_ID = BH.ID) GROUP BY DIR_NUM HAVING COUNT(*) <= CAST(?1 AS BIGINT): CNT < 1000 */ WHERE CNT < 1000 ORDER BY 1
> SELECT X.DIR_NUM, X.CNT FROM (SELECT DIR_NUM, COUNT(*) AS CNT FROM PUBLIC.MULTI_PAGES T /* PUBLIC.MULTI_PAGES_TABLE_SCAN */ INNER JOIN PUBLIC.B_HOLDING BH /* PUBLIC.PRIMARY_KEY_1: ID = T.BH_ID */ WHERE (BH.SITE = 'Hello') AND (T.BH_ID = BH.ID) GROUP BY DIR_NUM) X /* SELECT DIR_NUM, COUNT(*) AS CNT FROM PUBLIC.MULTI_PAGES T /++ PUBLIC.MULTI_PAGES_TABLE_SCAN ++/ INNER JOIN PUBLIC.B_HOLDING BH /++ PUBLIC.PRIMARY_KEY_1: ID = T.BH_ID ++/ WHERE (BH.SITE = 'Hello') AND (T.BH_ID = BH.ID) GROUP BY DIR_NUM HAVING COUNT(*) <= CAST(?1 AS BIGINT): CNT < 1000 */ WHERE CNT < 1000 ORDER BY 1
> rows (ordered): 1
select dir_num, count(*) as cnt from multi_pages t, b_holding bh
...
...
@@ -5163,9 +5163,9 @@ CREATE VIEW TEST_A_SUB AS SELECT * FROM TEST_A WHERE ID < 2;
SELECT TABLE_NAME, SQL FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE='VIEW';
> TEST_ALL CREATE FORCE VIEW PUBLIC.TEST_ALL(AID, A_NAME, BID, B_NAME) AS SELECT A.ID AID, A.NAME A_NAME, B.ID BID, B.NAME B_NAME FROM TEST_A A, TEST_B B WHERE A.ID = B.ID
> TEST_A_SUB CREATE FORCE VIEW PUBLIC.TEST_A_SUB(ID, NAME) AS SELECT * FROM TEST_A WHERE ID < 2
> TEST_ALL CREATE FORCE VIEW PUBLIC.TEST_ALL(AID, A_NAME, BID, B_NAME) AS SELECT A.ID AS AID, A.NAME AS A_NAME, B.ID AS BID, B.NAME AS B_NAME FROM PUBLIC.TEST_A A /* PUBLIC.TEST_A_TABLE_SCAN */ INNER JOIN PUBLIC.TEST_B B /* PUBLIC.PRIMARY_KEY_2: ID = A.ID */ WHERE A.ID = B.ID
> TEST_A_SUB CREATE FORCE VIEW PUBLIC.TEST_A_SUB(ID, NAME) AS SELECT TEST_A.ID, TEST_A.NAME FROM PUBLIC.TEST_A /* PUBLIC.PRIMARY_KEY_1: ID < 2 */ WHERE ID < 2
