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https://issues.apache.org/jira/browse/CALCITE-4742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17400979#comment-17400979
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Ivan Daschinsky edited comment on CALCITE-4742 at 8/18/21, 11:23 AM:
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[~nobigo] Excuse me, but <> ANY could not be rewritten as not in. For example
check these two queries
{code}
select * from emp where deptno <> some (select 20 union select 10);
select * from emp where deptno not in (select 20 union select 10);
{code}
First query returns on postgres with scott dataset
{code}
7369 SMITH CLERK 7902 1980-12-17 800.00 20
7499 ALLEN SALESMAN 7698 1981-02-20 1600.00 300.00 30
7521 WARD SALESMAN 7698 1981-02-22 1250.00 500.00 30
7566 JONES MANAGER 7839 1981-02-04 2975.00 20
7654 MARTIN SALESMAN 7698 1981-09-28 1250.00 1400.00 30
7698 BLAKE MANAGER 7839 1981-01-05 2850.00 30
7782 CLARK MANAGER 7839 1981-06-09 2450.00 10
7788 SCOTT ANALYST 7566 1987-04-19 3000.00 20
7839 KING PRESIDENT 1981-11-17 5000.00 10
7844 TURNER SALESMAN 7698 1981-09-08 1500.00 0.00 30
7876 ADAMS CLERK 7788 1987-05-23 1100.00 20
7900 JAMES CLERK 7698 1981-12-03 950.00 30
7902 FORD ANALYST 7566 1981-12-03 3000.00 20
7934 MILLER CLERK 7782 1982-01-23 1300.00 10
{code}
Second returns
{code}
7499 ALLEN SALESMAN 7698 1981-02-20 1600.00 300.00 30
7521 WARD SALESMAN 7698 1981-02-22 1250.00 500.00 30
7654 MARTIN SALESMAN 7698 1981-09-28 1250.00 1400.00 30
7698 BLAKE MANAGER 7839 1981-01-05 2850.00 30
7844 TURNER SALESMAN 7698 1981-09-08 1500.00 0.00 30
7900 JAMES CLERK 7698 1981-12-03 950.00 30
{code}
was (Author: ivandasch):
[~nobigo] Excuse me, but <> ANY could not be rewritten as not in. For example
check these two queries
{code}
select * from emp where deptno <> some (select 20 union select 10);
select * from emp where deptno not in (select 20 union select 10);
{code}
First query returns
{code}
7369 SMITH CLERK 7902 1980-12-17 800.00 20
7499 ALLEN SALESMAN 7698 1981-02-20 1600.00 300.00 30
7521 WARD SALESMAN 7698 1981-02-22 1250.00 500.00 30
7566 JONES MANAGER 7839 1981-02-04 2975.00 20
7654 MARTIN SALESMAN 7698 1981-09-28 1250.00 1400.00 30
7698 BLAKE MANAGER 7839 1981-01-05 2850.00 30
7782 CLARK MANAGER 7839 1981-06-09 2450.00 10
7788 SCOTT ANALYST 7566 1987-04-19 3000.00 20
7839 KING PRESIDENT 1981-11-17 5000.00 10
7844 TURNER SALESMAN 7698 1981-09-08 1500.00 0.00 30
7876 ADAMS CLERK 7788 1987-05-23 1100.00 20
7900 JAMES CLERK 7698 1981-12-03 950.00 30
7902 FORD ANALYST 7566 1981-12-03 3000.00 20
7934 MILLER CLERK 7782 1982-01-23 1300.00 10
{code}
Second returns
{code}
7499 ALLEN SALESMAN 7698 1981-02-20 1600.00 300.00 30
7521 WARD SALESMAN 7698 1981-02-22 1250.00 500.00 30
7654 MARTIN SALESMAN 7698 1981-09-28 1250.00 1400.00 30
7698 BLAKE MANAGER 7839 1981-01-05 2850.00 30
7844 TURNER SALESMAN 7698 1981-09-08 1500.00 0.00 30
7900 JAMES CLERK 7698 1981-12-03 950.00 30
{code}
> Implement NOT EQUALS in some subquery
> -------------------------------------
>
> Key: CALCITE-4742
> URL: https://issues.apache.org/jira/browse/CALCITE-4742
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Ivan Daschinsky
> Assignee: duan xiong
> Priority: Major
> Fix For: 1.28.0
>
>
> When executing
> {code}
> select * from "scott".emp where empno <> any (select 10);
> {code}
> with assertions, got assertion error
> {code}
> ---
> > java.lang.AssertionError
> > at
> > org.apache.calcite.rel.rules.SubQueryRemoveRule.rewriteSome(SubQueryRemoveRule.java:170)
> > at
> > org.apache.calcite.rel.rules.SubQueryRemoveRule.apply(SubQueryRemoveRule.java:92)
> > at
> > org.apache.calcite.rel.rules.SubQueryRemoveRule.matchFilter(SubQueryRemoveRule.java:637)
> > at
> > org.apache.calcite.rel.rules.SubQueryRemoveRule.access$100(SubQueryRemoveRule.java:71)
> > at
> > org.apache.calcite.rel.rules.SubQueryRemoveRule$Config.lambda$static$3(SubQueryRemoveRule.java:701)
> > at
> > org.apache.calcite.rel.rules.SubQueryRemoveRule.onMatch(SubQueryRemoveRule.java:82)
> > at
> > org.apache.calcite.plan.AbstractRelOptPlanner.fireRule(AbstractRelOptPlanner.java:341)
> > at org.apache.calcite.plan.hep.HepPlanner.applyRule(HepPlanner.java:565)
> > at
> > org.apache.calcite.plan.hep.HepPlanner.applyRules(HepPlanner.java:428)
> > at
> > org.apache.calcite.plan.hep.HepPlanner.executeInstruction(HepPlanner.java:282)
> > at
> > org.apache.calcite.plan.hep.HepInstruction$RuleCollection.execute(HepInstruction.java:77)
> > at
> > org.apache.calcite.plan.hep.HepPlanner.executeProgram(HepPlanner.java:208)
> > at
> > org.apache.calcite.plan.hep.HepPlanner.findBestExp(HepPlanner.java:195)
> > at org.apache.calcite.tools.Programs.lambda$of$0(Programs.java:176)
> > at
> > org.apache.calcite.tools.Programs$SequenceProgram.run(Programs.java:335)
> > at org.apache.calcite.prepare.Prepare.optimize(Prepare.java:172)
> > at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:306)
> > at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:215)
> > at
> > org.apache.calcite.prepare.CalcitePrepareImpl.prepare2_(CalcitePrepareImpl.java:647)
> > at
> > org.apache.calcite.prepare.CalcitePrepareImpl.prepare_(CalcitePrepareImpl.java:513)
> > at
> > org.apache.calcite.prepare.CalcitePrepareImpl.prepareSql(CalcitePrepareImpl.java:483)
> > at
> > org.apache.calcite.jdbc.CalciteConnectionImpl.parseQuery(CalciteConnectionImpl.java:249)
> > at
> > org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(CalciteMetaImpl.java:623)
> {code}
> This query cannot be rewritten as IN query, so it goes to
> {{SubQueryRemoveRule.rewriteSome}}. Current logic in this method doesn't work
> on this case and produce wrong plan.
> This query should be rewritten to something like this:
> {code}
> select distinct(e.*) from "scott".emp as e inner join (select 10 as empno)
> as q on e.empno <> q.empno;
> {code}
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