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https://issues.apache.org/jira/browse/CALCITE-3561?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde updated CALCITE-3561:
---------------------------------
Summary: Implement Uncollect relational operator in Interpreter (for SQL
queries that use UNNEST) (was: Support using unnest in Interpreter)
> Implement Uncollect relational operator in Interpreter (for SQL queries that
> use UNNEST)
> ----------------------------------------------------------------------------------------
>
> Key: CALCITE-3561
> URL: https://issues.apache.org/jira/browse/CALCITE-3561
> Project: Calcite
> Issue Type: Improvement
> Reporter: Wang Yanlin
> Assignee: Wang Yanlin
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Using unnest in Interpreter will cause exception,
> {code:java}
> // InterpreterTest
> @Test public void testInterpretUnnest() throws Exception {
> final String sql = "select * from unnest(multiset[1, 2])";
> sql(sql).returnsRows("[1]", "[2]");
> }
> {code}
> got
> {code:java}
> java.lang.AssertionError: interpreter: no implementation for class
> org.apache.calcite.rel.core.Uncollect
> at
> org.apache.calcite.interpreter.Interpreter$CompilerImpl.visit(Interpreter.java:463)
> at
> org.apache.calcite.interpreter.Nodes$CoreCompiler.visit(Nodes.java:44)
> at org.apache.calcite.rel.SingleRel.childrenAccept(SingleRel.java:72)
> at
> org.apache.calcite.interpreter.Interpreter$CompilerImpl.visit(Interpreter.java:450)
> at
> org.apache.calcite.interpreter.Nodes$CoreCompiler.visit(Nodes.java:44)
> at
> org.apache.calcite.interpreter.Interpreter$CompilerImpl.visitRoot(Interpreter.java:408)
> at
> org.apache.calcite.interpreter.Interpreter.<init>(Interpreter.java:89)
> at
> org.apache.calcite.test.InterpreterTest$Sql.returnsRows(InterpreterTest.java:121)
> at
> org.apache.calcite.test.InterpreterTest$Sql.returnsRows(InterpreterTest.java:105)
> at
> org.apache.calcite.test.InterpreterTest.testInterpretUnnest(InterpreterTest.java:446)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> {code}
> Add support to use unnest in Interpreter.
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