xzh_dz created CALCITE-4778:
-------------------------------
Summary: Exchange operator deserialize fail
Key: CALCITE-4778
URL: https://issues.apache.org/jira/browse/CALCITE-4778
Project: Calcite
Issue Type: Improvement
Reporter: xzh_dz
{code:java}
// code placeholder
org.apache.calcite.plan.RelWriterTest
@Test public void testExchange() {
final FrameworkConfig config = RelBuilderTest.config().build();
final RelBuilder builder = RelBuilder.create(config);
final RelNode rel = builder
.scan("EMP")
.exchange(RelDistributions.hash(ImmutableList.of(0, 1)))
.build();
final String relJson = RelOptUtil.dumpPlan("", rel,
SqlExplainFormat.JSON, SqlExplainLevel.EXPPLAN_ATTRIBUTES);
String s = deserializeAndDumpToTextFormat(getSchema(rel), relJson);
final String expected = ""
+ "LogicalExchange(distribution=[hash[0, 1]])\n"
+ " LogicalTableScan(table=[[scott, EMP]])\n";
assertThat(s, isLinux(expected));
}
{code}
java.lang.NullPointerException: no entry for tag
collationjava.lang.NullPointerException: no entry for tag
collationjava.lang.RuntimeException: java.lang.NullPointerException: no entry
for tag collation at
org.apache.calcite.tools.Frameworks.withPrepare(Frameworks.java:193) at
org.apache.calcite.tools.Frameworks.withPlanner(Frameworks.java:135) at
org.apache.calcite.tools.Frameworks.withPlanner(Frameworks.java:153)
Caused by: java.lang.NullPointerException: no entry for tag collationCaused by:
java.lang.NullPointerException: no entry for tag collation at
java.util.Objects.requireNonNull(Objects.java:290) at
org.apache.calcite.rel.externalize.RelJsonReader$2.getNonNull(RelJsonReader.java:202)
at
org.apache.calcite.rel.externalize.RelJsonReader$2.getCollation(RelJsonReader.java:260)
at org.apache.calcite.rel.core.Exchange.<init>(Exchange.java:73) at
org.apache.calcite.rel.logical.LogicalExchange.<init>(LogicalExchange.java:44)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at
org.apache.calcite.rel.externalize.RelJsonReader.readRel(RelJsonReader.java:289)
at
org.apache.calcite.rel.externalize.RelJsonReader.readRels(RelJsonReader.java:107)
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