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https://issues.apache.org/jira/browse/FLINK-8107?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Flink Jira Bot updated FLINK-8107:
----------------------------------
Labels: auto-deprioritized-major stale-minor (was:
auto-deprioritized-major)
I am the [Flink Jira Bot|https://github.com/apache/flink-jira-bot/] and I help
the community manage its development. I see this issues has been marked as
Minor but is unassigned and neither itself nor its Sub-Tasks have been updated
for 180 days. I have gone ahead and marked it "stale-minor". If this ticket is
still Minor, please either assign yourself or give an update. Afterwards,
please remove the label or in 7 days the issue will be deprioritized.
> UNNEST causes cyclic type checking exception
> --------------------------------------------
>
> Key: FLINK-8107
> URL: https://issues.apache.org/jira/browse/FLINK-8107
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / API
> Affects Versions: 1.4.0
> Reporter: Timo Walther
> Priority: Minor
> Labels: auto-deprioritized-major, stale-minor
>
> The following query causes an assertion error:
> {code}
> def main(args: Array[String]): Unit = {
> val env = ExecutionEnvironment.getExecutionEnvironment
> val tEnv = TableEnvironment.getTableEnvironment(env)
> val input2 = env.fromElements(
> WC("hello", 1, Array(1, 2, 3)),
> WC("hello", 1, Array(1, 2, 3)),
> WC("ciao", 1, Array(1, 2, 3))
> )
> tEnv.registerDataSet("entity", input2)
> tEnv.registerDataSet("product", input2, 'product)
> val table = tEnv.sqlQuery("SELECT t.item.* FROM product,
> UNNEST(entity.myarr) AS t (item)")
> table.toDataSet[Row].print()
> }
> case class WC(word: String, frequency: Long, myarr: Array[Int])
> {code}
> It leads to:
> {code}
> Exception in thread "main" java.lang.AssertionError: Cycle detected during
> type-checking
> at
> org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:93)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:945)
> at
> org.apache.calcite.sql.validate.AbstractNamespace.getRowType(AbstractNamespace.java:115)
> at
> org.apache.calcite.sql.validate.AbstractNamespace.getRowTypeSansSystemColumns(AbstractNamespace.java:122)
> at
> org.apache.calcite.sql.validate.AliasNamespace.validateImpl(AliasNamespace.java:71)
> at
> org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:84)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:945)
> at
> org.apache.calcite.sql.validate.AbstractNamespace.getRowType(AbstractNamespace.java:115)
> at
> org.apache.calcite.sql.validate.AliasNamespace.getRowType(AliasNamespace.java:41)
> at
> org.apache.calcite.sql.validate.DelegatingScope.resolveInNamespace(DelegatingScope.java:101)
> at org.apache.calcite.sql.validate.ListScope.resolve(ListScope.java:191)
> at
> org.apache.calcite.sql.validate.ListScope.findQualifyingTableNames(ListScope.java:156)
> at
> org.apache.calcite.sql.validate.DelegatingScope.fullyQualify(DelegatingScope.java:326)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateIdentifier(SqlValidatorImpl.java:2785)
> at
> org.apache.calcite.sql.SqlIdentifier.validateExpr(SqlIdentifier.java:324)
> at org.apache.calcite.sql.SqlOperator.validateCall(SqlOperator.java:407)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateCall(SqlValidatorImpl.java:5084)
> at
> org.apache.calcite.sql.validate.UnnestNamespace.validateImpl(UnnestNamespace.java:52)
> at
> org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:84)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:945)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:926)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:2961)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:2946)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateJoin(SqlValidatorImpl.java:2998)
> at
> org.apache.flink.table.calcite.FlinkCalciteSqlValidator.validateJoin(FlinkCalciteSqlValidator.scala:67)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:2955)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:3206)
> at
> org.apache.calcite.sql.validate.SelectNamespace.validateImpl(SelectNamespace.java:60)
> at
> org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:84)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:945)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:926)
> at org.apache.calcite.sql.SqlSelect.validate(SqlSelect.java:226)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:901)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:611)
> at
> org.apache.flink.table.calcite.FlinkPlannerImpl.validate(FlinkPlannerImpl.scala:89)
> at
> org.apache.flink.table.api.TableEnvironment.sqlQuery(TableEnvironment.scala:561)
> at
> org.apache.flink.table.examples.scala.WordCountSQL$.main(WordCountSQL.scala:57)
> at
> org.apache.flink.table.examples.scala.WordCountSQL.main(WordCountSQL.scala)
> {code}
> I think this is a Calcite bug but we have to check that first.
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