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https://issues.apache.org/jira/browse/IGNITE-19031?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Maksim Zhuravkov updated IGNITE-19031:
--------------------------------------
Description:
JOINs with USING condition do not use type coercion and that causes some
queries to fail with ClassCastException, even though equivalent JOINs complete
successfully.
{code:java}
sql("CREATE TABLE T11 (c1 int primary key, c2 INTEGER)");
sql("CREATE TABLE T12 (c1 BIGINT primary key, c2 BIGINT)");
Transaction tx = CLUSTER_NODES.get(0).transactions().begin();
sql(tx, "INSERT INTO T11 VALUES(1, 2)");
sql(tx, "INSERT INTO T11 VALUES(2, 3)");
sql(tx, "INSERT INTO T12 VALUES(1, 2)");
sql(tx, "INSERT INTO T12 VALUES(2, 4)");
tx.commit();
sql("SELECT * FROM t11 JOIN t12 USING (c1)");
{code}
Equivalent query passes with no issues:
{code:java}
sql("SELECT * FROM t11 JOIN t12 ON t11.c1 = t12.c1");
{code}
Error:
{code:java}
Caused by: java.lang.ClassCastException: class java.lang.Integer cannot be cast
to class java.lang.Long (java.lang.Integer and java.lang.Long are in module
java.base of loader 'bootstrap')
at
org.apache.ignite.internal.util.ColocationUtils.append(ColocationUtils.java:71)
at
org.apache.ignite.internal.sql.engine.util.HashFunctionFactoryImpl$TypesAwareHashFunction.hashOf(HashFunctionFactoryImpl.java:116)
at
org.apache.ignite.internal.sql.engine.trait.Partitioned.targets(Partitioned.java:47)
at
org.apache.ignite.internal.sql.engine.exec.rel.Outbox.flush(Outbox.java:242)
at
org.apache.ignite.internal.sql.engine.exec.rel.Outbox.push(Outbox.java:151)
at
org.apache.ignite.internal.sql.engine.exec.rel.SortNode.flush(SortNode.java:193)
at
org.apache.ignite.internal.sql.engine.exec.rel.SortNode.end(SortNode.java:154)
{code}
*Solution*
Because JOINs that use USING join condition are equivalent to JOINs that use ON
condition, It would be better to replace USING condition with equivalent ON
condition prior to optimisation to leverage the solution handles type coercion.
was:
JOINs with USING condition do not use type coercion and that causes some
queries to fail with ClassCastException, even though equivalent JOINs complete
successfully.
{code:java}
sql("CREATE TABLE T11 (c1 int primary key, c2 INTEGER)");
sql("CREATE TABLE T12 (c1 BIGINT primary key, c2 BIGINT)");
Transaction tx = CLUSTER_NODES.get(0).transactions().begin();
sql(tx, "INSERT INTO T11 VALUES(1, 2)");
sql(tx, "INSERT INTO T11 VALUES(2, 3)");
sql(tx, "INSERT INTO T12 VALUES(1, 2)");
sql(tx, "INSERT INTO T12 VALUES(2, 4)");
tx.commit();
sql("SELECT * FROM t11 JOIN t12 USING (c1)");
{code}
Equivalent query passes with no issues:
{code:java}
sql("SELECT * FROM t11 JOIN t12 ON t11.c1 = t12.c1");
{code}
Error:
{code:java}
Caused by: java.lang.ClassCastException: class java.lang.Integer cannot be cast
to class java.lang.Long (java.lang.Integer and java.lang.Long are in module
java.base of loader 'bootstrap')
at
org.apache.ignite.internal.util.ColocationUtils.append(ColocationUtils.java:71)
at
org.apache.ignite.internal.sql.engine.util.HashFunctionFactoryImpl$TypesAwareHashFunction.hashOf(HashFunctionFactoryImpl.java:116)
at
org.apache.ignite.internal.sql.engine.trait.Partitioned.targets(Partitioned.java:47)
at
org.apache.ignite.internal.sql.engine.exec.rel.Outbox.flush(Outbox.java:242)
at
org.apache.ignite.internal.sql.engine.exec.rel.Outbox.push(Outbox.java:151)
at
org.apache.ignite.internal.sql.engine.exec.rel.SortNode.flush(SortNode.java:193)
at
org.apache.ignite.internal.sql.engine.exec.rel.SortNode.end(SortNode.java:154)
{code}
*Solution*
Because JOINs that use USING join condition are equivalent to JOINs that use ON
condition, It would be better to replace USING condition with equivalent ON
condition prior to optimisation to leverage the solution handles type coercion.
> Sql. Joins with USING condition do not use type coercion.
> ---------------------------------------------------------
>
> Key: IGNITE-19031
> URL: https://issues.apache.org/jira/browse/IGNITE-19031
> Project: Ignite
> Issue Type: Bug
> Components: sql
> Affects Versions: 3.0.0-beta2
> Reporter: Maksim Zhuravkov
> Priority: Minor
> Labels: calcite3-required, ignite-3
>
> JOINs with USING condition do not use type coercion and that causes some
> queries to fail with ClassCastException, even though equivalent JOINs
> complete successfully.
> {code:java}
> sql("CREATE TABLE T11 (c1 int primary key, c2 INTEGER)");
> sql("CREATE TABLE T12 (c1 BIGINT primary key, c2 BIGINT)");
> Transaction tx = CLUSTER_NODES.get(0).transactions().begin();
> sql(tx, "INSERT INTO T11 VALUES(1, 2)");
> sql(tx, "INSERT INTO T11 VALUES(2, 3)");
> sql(tx, "INSERT INTO T12 VALUES(1, 2)");
> sql(tx, "INSERT INTO T12 VALUES(2, 4)");
> tx.commit();
> sql("SELECT * FROM t11 JOIN t12 USING (c1)");
> {code}
> Equivalent query passes with no issues:
> {code:java}
> sql("SELECT * FROM t11 JOIN t12 ON t11.c1 = t12.c1");
> {code}
> Error:
> {code:java}
> Caused by: java.lang.ClassCastException: class java.lang.Integer cannot be
> cast to class java.lang.Long (java.lang.Integer and java.lang.Long are in
> module java.base of loader 'bootstrap')
> at
> org.apache.ignite.internal.util.ColocationUtils.append(ColocationUtils.java:71)
> at
> org.apache.ignite.internal.sql.engine.util.HashFunctionFactoryImpl$TypesAwareHashFunction.hashOf(HashFunctionFactoryImpl.java:116)
> at
> org.apache.ignite.internal.sql.engine.trait.Partitioned.targets(Partitioned.java:47)
> at
> org.apache.ignite.internal.sql.engine.exec.rel.Outbox.flush(Outbox.java:242)
> at
> org.apache.ignite.internal.sql.engine.exec.rel.Outbox.push(Outbox.java:151)
> at
> org.apache.ignite.internal.sql.engine.exec.rel.SortNode.flush(SortNode.java:193)
> at
> org.apache.ignite.internal.sql.engine.exec.rel.SortNode.end(SortNode.java:154)
> {code}
> *Solution*
> Because JOINs that use USING join condition are equivalent to JOINs that use
> ON condition, It would be better to replace USING condition with equivalent
> ON condition prior to optimisation to leverage the solution handles type
> coercion.
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