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https://issues.apache.org/jira/browse/PHOENIX-6420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17308874#comment-17308874
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ASF GitHub Bot commented on PHOENIX-6420:
-----------------------------------------
swaroopak commented on a change in pull request #1183:
URL: https://github.com/apache/phoenix/pull/1183#discussion_r601729841
##########
File path:
phoenix-core/src/it/java/org/apache/phoenix/end2end/OnDuplicateKeyIT.java
##########
@@ -614,6 +614,48 @@ public void
testRowsCreatedViaUpsertOnDuplicateKeyShouldNotBeReturnedInQueryIfNo
conn.close();
}
+ @Test
+ public void testOnDupAndUpsertInSameCommitBatch() throws Exception {
+ Properties props = PropertiesUtil.deepCopy(TEST_PROPERTIES);
+ String tableName = generateUniqueName();
+ try (Connection conn = DriverManager.getConnection(getUrl(), props)) {
+ String ddl = "create table " + tableName + "(pk varchar primary
key, counter1 bigint, counter2 smallint)";
+ conn.createStatement().execute(ddl);
+ createIndex(conn, tableName);
+
+ // row doesn't exist
+ conn.createStatement().execute(String.format("UPSERT INTO %s
VALUES('a',0,1)", tableName));
+ conn.createStatement().execute(String.format(
+ "UPSERT INTO %s VALUES('a',1,1) ON DUPLICATE KEY UPDATE
counter1 = counter1 + 2", tableName));
+ conn.commit();
+ assertRow(conn, tableName, "a", 2, 1);
Review comment:
Cool, that's what I meant with the value from line 627.
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> Wrong result when conditional and regular upserts are passed in the same
> commit batch
> -------------------------------------------------------------------------------------
>
> Key: PHOENIX-6420
> URL: https://issues.apache.org/jira/browse/PHOENIX-6420
> Project: Phoenix
> Issue Type: Bug
> Reporter: Tanuj Khurana
> Assignee: Tanuj Khurana
> Priority: Major
>
> Consider this example:
> {code:java}
> CREATE TABLE T1 (k integer not null primary key, v1 bigint, v2 bigint);
> {code}
> Now consider this batch:
> {code:java}
> UPSERT INTO T1 VALUES(0,0,1);
> UPSERT INTO T1 VALUES(0,1,1) ON DUPLICATE KEY UPDATE v1 = v1 + 2;
> commit();
> {code}
> Expected row state: 0, 2, 1
> Actual: 0, 2, 0
> The value of the column (v2) not updated in the conditional expression
> remains default. It's value should have been the one set in the regular
> upsert in the batch.
> Now, the row exists. Consider another batch of updates
> {code:java}
> UPSERT INTO T1 VALUES(0, 7, 4);
> UPSERT INTO T1 VALUES(0,1,1) ON DUPLICATE KEY UPDATE v1 = v1 + 2;
> commit();
> {code}
> Expected row state: 0,2,1 -> 0, 9, 4
> Actual: 0,2,0 -> 0, 4, 0
> The conditional update expression is evaluated and applied on the row state
> already committed instead of on the regular update in the same batch. Also,
> v2 still remains 0 (the default value).
> Now consider the case of a partial regular update following a conditional
> update:
> {code:java}
> UPSERT INTO T1 (k, v2) VALUES(0,100) ON DUPLICATE KEY UPDATE v1 = v1 + 2;
> UPSERT INTO T1 (k, v2) VALUES (0,125);
> commit();
> {code}
> Expected row state: 0, 9, 4 -> 0, 11, 125
> Actual: 0, 4, 0 -> 0, 4, 125
> Only the regular update is applied and the conditional update is completely
> ignored.
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