Is there anymore information that would be helpful for me to give to aide
in troubleshooting this?

Thank you!
Eric

On Thu, Aug 15, 2024 at 16:51 Eric Berryman <[email protected]> wrote:

>
> I seem to be struggling with unions still. Here is a gist with the output
> and svg of the plan.
>
> https://gist.github.com/berryma4/c4870dd4e292e0509d1c85c308b52e67
>
> I need a little help on direction of what the svg is telling me.  I see
> the cost is infinite, but I don’t see where I’m missing a rule.
>
>
> Thank you for your help,
> Eric
>
>
>
> On Mon, Jul 29, 2024 at 18:28 Eric Berryman <[email protected]>
> wrote:
>
>> That didn't paste well. Here is a gist:
>> https://gist.github.com/berryma4/c6c09da050f273295edd23c045c63403
>>
>>
>>
>> On Mon, Jul 29, 2024 at 4:58 PM Eric Berryman <[email protected]>
>> wrote:
>>
>>> I’m back from a long holiday, and seem stuck still on this scenario. The
>>> plan gets created without any issues, but I get this error while executing
>>> queries with unions.
>>>
>>> Thank you again!
>>> Eric
>>>
>>> Here is the plan dump and error after running relRunner.prepareStatement.
>>>
>>> EnumerableProject(UserObject=[$0], id=[$3]): rowcount = 30.0, cumulative
>>> cost = {146.0 rows, 1393.2 cpu, 0.0 io}, id = 213
>>> EnumerableLimit(fetch=[100]): rowcount = 30.0, cumulative cost = {116.0
>>> rows, 1333.2 cpu, 0.0 io}, id = 212 EnumerableUnion(all=[true]): rowcount =
>>> 30.0, cumulative cost = {86.0 rows, 1303.2 cpu, 0.0 io}, id = 211
>>> EnumerableProject(UserObject=[$0], id=[$3]): rowcount = 15.0, cumulative
>>> cost = {28.0 rows, 636.6 cpu, 0.0 io}, id = 207 LDAPToEnumerableConverter:
>>> rowcount = 15.0, cumulative cost = {13.0 rows, 21.6 cpu, 0.0 io}, id = 206
>>> LDAPFilter(condition=[=(UPPER($5), 'RUDD')]): rowcount = 15.0, cumulative
>>> cost = {11.5 rows, 20.1 cpu, 0.0 io}, id = 205
>>> LDAPTableScan(table=[[SCIMUserSchema, cap_internet_ddpmildap]]): rowcount =
>>> 100.0, cumulative cost = {10.0 rows, 10.100000000000001 cpu, 0.0 io}, id =
>>> 0 EnumerableProject(UserObject=[$0], id=[$3]): rowcount = 15.0, cumulative
>>> cost = {28.0 rows, 636.6 cpu, 0.0 io}, id = 210 LDAPToEnumerableConverter:
>>> rowcount = 15.0, cumulative cost = {13.0 rows, 21.6 cpu, 0.0 io}, id = 209
>>> LDAPFilter(condition=[=(UPPER($5), 'RUDD')]): rowcount = 15.0, cumulative
>>> cost = {11.5 rows, 20.1 cpu, 0.0 io}, id = 208
>>> LDAPTableScan(table=[[SCIMUserSchema, prov_internet_ddpmildap]]): rowcount
>>> = 100.0, cumulative cost = {10.0 rows, 10.100000000000001 cpu, 0.0 io}, id
>>> = 2
>>>
>>>  java.lang.AssertionError: null at
>>> org.apache.calcite.adapter.enumerable.EnumerableLimit.<init>(EnumerableLimit.java:60)
>>> at
>>> org.apache.calcite.adapter.enumerable.EnumerableLimit.copy(EnumerableLimit.java:84)
>>> at
>>> org.apache.calcite.adapter.enumerable.EnumerableLimit.copy(EnumerableLimit.java:43)
>>> at
>>> org.apache.calcite.sql2rel.RelFieldTrimmer.trimFields(RelFieldTrimmer.java:378)
>>> at
>>> java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
>>> at java.base/java.lang.reflect.Method.invoke(Method.java:580) at
>>> org.apache.calcite.util.ReflectUtil$2.invoke(ReflectUtil.java:533) at
>>> org.apache.calcite.sql2rel.RelFieldTrimmer.dispatchTrimFields(RelFieldTrimmer.java:286)
>>> at
>>> org.apache.calcite.sql2rel.RelFieldTrimmer.trimChild(RelFieldTrimmer.java:228)
>>> at
>>> org.apache.calcite.sql2rel.RelFieldTrimmer.trimFields(RelFieldTrimmer.java:514)
>>> at
>>> java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
>>> at java.base/java.lang.reflect.Method.invoke(Method.java:580) at
>>> org.apache.calcite.util.ReflectUtil$2.invoke(ReflectUtil.java:533) at
>>> org.apache.calcite.sql2rel.RelFieldTrimmer.dispatchTrimFields(RelFieldTrimmer.java:286)
>>> at
>>> org.apache.calcite.sql2rel.RelFieldTrimmer.trim(RelFieldTrimmer.java:173)
>>> at
>>> org.apache.calcite.sql2rel.SqlToRelConverter.trimUnusedFields(SqlToRelConverter.java:567)
>>> at org.apache.calcite.prepare.Prepare.trimUnusedFields(Prepare.java:386) at
>>> org.apache.calcite.prepare.CalcitePrepareImpl$CalcitePreparingStmt.prepare_(CalcitePrepareImpl.java:1061)
>>> at
>>> org.apache.calcite.prepare.CalcitePrepareImpl$CalcitePreparingStmt.prepareRel(CalcitePrepareImpl.java:1026)
>>> at
>>> org.apache.calcite.prepare.CalcitePrepareImpl.prepare2_(CalcitePrepareImpl.java:687)
>>> at
>>> org.apache.calcite.prepare.CalcitePrepareImpl.prepare_(CalcitePrepareImpl.java:519)
>>> at
>>> org.apache.calcite.prepare.CalcitePrepareImpl.prepareSql(CalcitePrepareImpl.java:487)
>>> at
>>> org.apache.calcite.jdbc.CalciteConnectionImpl.parseQuery(CalciteConnectionImpl.java:237)
>>> at
>>> org.apache.calcite.jdbc.CalciteConnectionImpl.prepareStatement_(CalciteConnectionImpl.java:217)
>>> at
>>> org.apache.calcite.jdbc.CalciteConnectionImpl.lambda$unwrap$0(CalciteConnectionImpl.java:187)
>>>
>>>
>>> On Fri, Jul 19, 2024 at 11:07 Ruben Q L <[email protected]> wrote:
>>>
>>>> Eric, if you want to use EnumerableUnion instead of implementing your
>>>> own
>>>> Union, then I think you'll need to implement the appropriate Converter
>>>> [1]
>>>> to transform between conventions LDAP <=> ENUMERABLE
>>>>
>>>> Best,
>>>> Ruben
>>>>
>>>> [1]
>>>>
>>>> https://github.com/apache/calcite/blob/main/core/src/main/java/org/apache/calcite/rel/convert/Converter.java
>>>>
>>>>
>>>> On Fri, Jul 19, 2024 at 3:56 PM Eric Berryman <[email protected]>
>>>> wrote:
>>>>
>>>> > I implement an LDAPUnion and rule to convert from logicalunion, and of
>>>> > course, the error goes away. But I didn’t implement the union
>>>> correctly, so
>>>> > nothing is returned in my query. Is there a way to have my LDAPUnion
>>>> > use EnumerableUnion,
>>>> > or a way to not have LDAPUnion and take care of this with a rule?
>>>> >
>>>> > Thank you again!
>>>> > Eric
>>>> >
>>>> > On Tue, Jul 16, 2024 at 14:24 Eric Berryman <[email protected]>
>>>> > wrote:
>>>> >
>>>> > > Well, I was wrong. That didn’t solve my problem with :
>>>> > >
>>>> > > Missing conversion is LogicalUnion[convention: NONE -> LDAP]
>>>> > >
>>>> > > Do I have to implement my own union? Is there a way I could just
>>>> use the
>>>> > > EnumerableUnion?
>>>> > > ie. NONE -> Enumerable and skip implementing one for my ldap
>>>> datastore?
>>>> > >
>>>> > > Thank you!
>>>> > > Eric
>>>> > >
>>>> > > On Tue, Jul 16, 2024 at 09:00 Eric Berryman <
>>>> [email protected]>
>>>> > > wrote:
>>>> > >
>>>> > >> When I register my tablescan object, and add my rules, I also
>>>> added a
>>>> > >> removeRule for EnumerableRules.ENUMERABLE_MERGE_UNION_RULE, and now
>>>> > >> everything works with an offset also.
>>>> > >>
>>>> > >> Although, I don’t know why this is. I noticed the
>>>> EnumerableMergeUnion
>>>> > >> object in the plan, and thought I would try to remove it, because
>>>> it was
>>>> > >> different.
>>>> > >>
>>>> > >> Any explanation is appreciated, thank you!!!
>>>> > >> Eric
>>>> > >>
>>>> > >>
>>>> > >> On Mon, Jul 15, 2024 at 18:02 Eric Berryman <
>>>> [email protected]>
>>>> > >> wrote:
>>>> > >>
>>>> > >>> Hello!
>>>> > >>>
>>>> > >>> I seem to have an issue with my new limit rule which pushes down
>>>> to the
>>>> > >>> datastore. It works fine, unless I add an offset to the fetch.
>>>> Where I
>>>> > end
>>>> > >>> up with the following error:
>>>> > >>> There are not enough rules… Missing conversion is
>>>> > >>> LogicalUnion[convention: NONE -> LDAP]
>>>> > >>>
>>>> > >>> Why would this only come up when an offset value is added?
>>>> > >>>
>>>> > >>> Thank you!
>>>> > >>> Eric
>>>> > >>>
>>>> > >>>
>>>> > >>> On Fri, Jun 21, 2024 at 09:25 Eric Berryman <
>>>> [email protected]>
>>>> > >>> wrote:
>>>> > >>>
>>>> > >>>> That’s perfect
>>>> > >>>>
>>>> > >>>>
>>>> >
>>>> https://github.com/apache/calcite/blob/main/cassandra/src/main/java/org/apache/calcite/adapter/cassandra/CassandraRules.java#L401
>>>> > >>>>
>>>> > >>>> Thank you for such a quick response!
>>>> > >>>> Eric
>>>> > >>>>
>>>> > >>>>
>>>> > >>>> On Fri, Jun 21, 2024 at 09:14 Michael Mior <[email protected]>
>>>> wrote:
>>>> > >>>>
>>>> > >>>>> Eric,
>>>> > >>>>>
>>>> > >>>>> Could you give a more specific example of the failure scenario
>>>> you're
>>>> > >>>>> experiencing?
>>>> > >>>>>
>>>> > >>>>> For a simple example of how limits can be pushed down, this is
>>>> done
>>>> > in
>>>> > >>>>> the
>>>> > >>>>> Cassandra adapter with CassandraLimitRule. It matches an
>>>> > >>>>> EnumerableLimit on
>>>> > >>>>> top of a CassandraToEnumerableConverter and then converts that
>>>> limit
>>>> > >>>>> to a
>>>> > >>>>> CassandraLimit which passes along the limit and offset
>>>> information to
>>>> > >>>>> CassandraToEnumerableConverter for when the query is executed.
>>>> The
>>>> > >>>>> EnumerableLimit is then replaced with a CassandraLimit
>>>> effectively
>>>> > as a
>>>> > >>>>> placeholder to signal that the limit has been handled.
>>>> > >>>>>
>>>> > >>>>> --
>>>> > >>>>> Michael Mior
>>>> > >>>>> [email protected]
>>>> > >>>>>
>>>> > >>>>>
>>>> > >>>>> On Fri, Jun 21, 2024 at 8:44 AM Eric Berryman <
>>>> > [email protected]
>>>> > >>>>> >
>>>> > >>>>> wrote:
>>>> > >>>>>
>>>> > >>>>> > Hello!
>>>> > >>>>> >
>>>> > >>>>> > When I add limit to my relbuilder object, the planner gives
>>>> up. But
>>>> > >>>>> works
>>>> > >>>>> > fine without it.
>>>> > >>>>> >
>>>> > >>>>> > I wasn’t able to find any examples of using limit and pushing
>>>> the
>>>> > >>>>> limit
>>>> > >>>>> > values down to a data source.
>>>> > >>>>> >
>>>> > >>>>> > Could someone help with some links on this subject?
>>>> > >>>>> >
>>>> > >>>>> > Thank you!
>>>> > >>>>> > Eric
>>>> > >>>>> >
>>>> > >>>>>
>>>> > >>>>
>>>> >
>>>>
>>>

Reply via email to