[ https://issues.apache.org/jira/browse/CALCITE-5178?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated CALCITE-5178: ------------------------------------ Labels: pull-request-available (was: ) > Scalar subquery in scalar subquery generates plan that will not compile > ----------------------------------------------------------------------- > > Key: CALCITE-5178 > URL: https://issues.apache.org/jira/browse/CALCITE-5178 > Project: Calcite > Issue Type: Bug > Reporter: Julian Hyde > Priority: Major > Labels: pull-request-available > Time Spent: 10m > Remaining Estimate: 0h > > Scalar subquery in scalar subquery generates plan that will not compile. > Example: > {code:java} > > select (select (1, 2)); > Error: Error while executing SQL "select (select (1, 2))": Error while > compiling generated Java code: > ... > public static class Record2_3 implements java.io.Serializable { > public boolean f0; > public Object[] f1; > ... > } > java.util.List accumulatorAdders = new java.util.LinkedList(); > accumulatorAdders.add(new org.apache.calcite.linq4j.function.Function2() { > public Record2_3 apply(Record2_3 acc, Record2_1 > in) { > if (acc.f0) { > throw new IllegalStateException( > "more than one value in agg > SINGLE_VALUE"); > } > acc.f0 = true; > acc.f1 = in; > return acc; > } > public Record2_3 apply(Object acc, Object in) { > return apply( > (Record2_3) acc, > (Record2_1) in); > } > } > ); > ... > {code} > Note the line {{acc.f1 = in;}} is attempting to assign a {{Record2_1}} value > to a {{Object[]}} field. -- This message was sent by Atlassian Jira (v8.20.10#820010)