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Posted to issues@ignite.apache.org by "Pavel Pereslegin (Jira)" <ji...@apache.org> on 2023/05/08 15:13:00 UTC
[jira] [Commented] (IGNITE-19176) Sql. RW transaction skips rows without value.
[ https://issues.apache.org/jira/browse/IGNITE-19176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17720545#comment-17720545 ]
Pavel Pereslegin commented on IGNITE-19176:
-------------------------------------------
[~agura], thanks!
Sorry, I changed the description, because it was not entirely correct.
Explicit meant an read-write transaction, and implicit read-only.
> Sql. RW transaction skips rows without value.
> ---------------------------------------------
>
> Key: IGNITE-19176
> URL: https://issues.apache.org/jira/browse/IGNITE-19176
> Project: Ignite
> Issue Type: Bug
> Components: sql
> Reporter: Pavel Pereslegin
> Assignee: Pavel Pereslegin
> Priority: Major
> Labels: ignite-3
> Time Spent: 50m
> Remaining Estimate: 0h
>
> When we try to insert values into a single column table using RW transaction, those values are not visible in the same transaction.
> Example
> {code:java}
> create table test(id int primary key) // single column table
> {code}
> {code:java}
> // case 1
> start RW tx
> insert into test values (0), (1)
> select count(*) from test // returns 0 instead of 2
> finish tx{code}
> {code:java}
> // case 2
> start RW tx
> insert into test values (0), (1)
> commit tx
> start RW tx
> select count(*) from test // returns 0 instead of 2
> finish tx{code}
> If we do this using RO transaction - all works fine.
> If we add a column to the table, everything will work fine.
> Reproducer
> {code:java}
> @Test
> public void test() {
> sql("CREATE TABLE myTbl (id INT PRIMARY KEY) WITH REPLICAS=2, PARTITIONS=10");
> Ignite ignite = CLUSTER_NODES.get(0);
> ignite.transactions().runInTransaction(tx -> {
> sql(tx, "INSERT INTO myTbl VALUES (0), (1)");
> List<List<Object>> rows = sql(tx, "SELECT count(*) from myTbl");
> assertEquals(2L, rows.get(0).get(0));
> });
> } {code}
>
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