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https://issues.apache.org/jira/browse/CALCITE-5048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17509234#comment-17509234
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Jiajun Xie commented on CALCITE-5048:
-------------------------------------
Hi, [~rubenql]. I found all the code that takes int value from fetch.
- Two lines of code have been fixed in CALCITE-2061
{code:java}
RelMdRowCount:160 final int limit = RexLiteral.intValue(rel.fetch);
PruneEmptyRules.SortFetchZeroRuleConfig:459 && RexLiteral.intValue(sort.fetch)
== 0) { {code}
- Eight lines of code that may have problems
{code:java}
EnumerableMergeUnionRule:89 RexLiteral.intValue(sort.fetch) +
RexLiteral.intValue(sort.offset));
RelMdMaxRowCount:116 final int limit = RexLiteral.intValue(rel.fetch);
RelMdMaxRowCount:213 return (double) RexLiteral.intValue(sort.fetch);
RelMdMinRowCount:115 final int limit = RexLiteral.intValue(rel.fetch);
RelMdMinRowCount:173 return (double) RexLiteral.intValue(sort.fetch);
RelDecorrelator:481 final int fetch = rel.fetch == null ? -1 :
RexLiteral.intValue(rel.fetch);
RelDecorrelator:661 sort.fetch == null ? -1 : RexLiteral.intValue(sort.fetch);
DruidQuery:697 fetch = sort.fetch != null ? RexLiteral.intValue(sort.fetch) :
null; {code}
I'm interested in completely fixing them, Would you please assign the issue to
me?
> Query with parameterized LIMIT and correlated sub-query throws AssertionError
> "not a literal"
> ---------------------------------------------------------------------------------------------
>
> Key: CALCITE-5048
> URL: https://issues.apache.org/jira/browse/CALCITE-5048
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.29.0
> Reporter: Corvin Kuebler
> Priority: Major
>
> This query:
> {code:java}
> // Does not run
> @Test void testDynamicParameterLimit() {
> CalciteAssert.hr()
> .query("SELECT * FROM \"hr\".\"emps\" AS a " +
> "WHERE \"deptno\" = " +
> "(SELECT MAX(\"deptno\") " +
> "FROM \"hr\".\"emps\" AS b " +
> "WHERE a.\"empid\" = b.\"empid\"" +
> ") LIMIT ?")
> .runs();
> }{code}
> results in the following exception:
> {code:java}
> not a literal: ?0
> java.lang.AssertionError: not a literal: ?0
> at org.apache.calcite.rex.RexLiteral.findValue(RexLiteral.java:1208)
> at org.apache.calcite.rex.RexLiteral.intValue(RexLiteral.java:1183)
> at
> org.apache.calcite.sql2rel.RelDecorrelator.decorrelateRel(RelDecorrelator.java:481)
> at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:568)
> at org.apache.calcite.util.ReflectUtil$2.invoke(ReflectUtil.java:531)
> at
> org.apache.calcite.sql2rel.RelDecorrelator.getInvoke(RelDecorrelator.java:711)
> at
> org.apache.calcite.sql2rel.RelDecorrelator.decorrelate(RelDecorrelator.java:306)
> at
> org.apache.calcite.sql2rel.RelDecorrelator.decorrelateQuery(RelDecorrelator.java:230)
> at
> org.apache.calcite.tools.Programs$DecorrelateProgram.run(Programs.java:361)
> at
> org.apache.calcite.tools.Programs$SequenceProgram.run(Programs.java:336)
> at org.apache.calcite.prepare.Prepare.optimize(Prepare.java:177)
> at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:312)
> at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:220){code}
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