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Zhen Wang commented on CALCITE-4607:
this syntax looks interesting, could you expand a little
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Zhen Wang commented on CALCITE-4349:
[~julianhyde] updated and addressed review comments
> Support
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Zhen Wang commented on CALCITE-4349:
well, I did notice allowsSeparator is causing too much
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Zhen Wang commented on CALCITE-4349:
right, I think I've squashed the commit too early to leave
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Zhen Wang commented on CALCITE-4434:
[~amaliujia] this is the latest commit message "[CALCITE-4434]
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Zhen Wang edited comment on CALCITE-4349 at 1/3/21, 9:21 AM:
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from my
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Zhen Wang commented on CALCITE-4349:
{code:sql}
select
listagg(deptno, ename, ";") within
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Zhen Wang edited comment on CALCITE-4349 at 1/3/21, 6:57 AM:
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from my
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Zhen Wang commented on CALCITE-4349:
from my experiment, group_concat in mysql context does support
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Zhen Wang reassigned CALCITE-4349:
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Assignee: Zhen Wang
> Support GROUP_CONCAT aggregate function for MySQL
>
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Zhen Wang commented on CALCITE-4349:
need some comments on the PR, thanks
> Support GROUP_CONCAT
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Zhen Wang commented on CALCITE-4349:
want some discussion here, the overall implementation would be
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Zhen Wang edited comment on CALCITE-4434 at 12/29/20, 1:08 AM:
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Zhen Wang commented on CALCITE-4434:
[~julianhyde] I closed the previous and opened another. and
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Zhen Wang commented on CALCITE-4434:
{code:java}
ARRAY(PrecScale.NO_NO, false, Types.ARRAY,
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Zhen Wang commented on CALCITE-4434:
reworked a little bit as you suggest.
> Cannot implement
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Zhen Wang commented on CALCITE-520:
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I thought there is already a CancelFlag when implementing the
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Zhen Wang commented on CALCITE-4434:
https://github.com/apache/calcite/pull/2298
Array Compare is
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Zhen Wang commented on CALCITE-1382:
verified that this is no longer an issue with latest master.
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Zhen Wang edited comment on CALCITE-3752 at 9/26/20, 1:49 PM:
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any
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Zhen Wang edited comment on CALCITE-3752 at 9/26/20, 1:46 PM:
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any
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Zhen Wang commented on CALCITE-3752:
any backgrounds of specifically this syntax? are there plans
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Zhen Wang commented on CALCITE-4147:
[~mmior] any background explaination on this change?
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zhen wang commented on CALCITE-1935:
[~julianhyde] you still managed to squeeze it into 3 big
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zhen wang commented on CALCITE-3176:
I somehow feels this is already supported.
> File adapter for
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zhen wang commented on CALCITE-1935:
[~julian.feinauer] , I spent some time on rebasing your work
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zhen wang commented on CALCITE-1935:
okay, I will put it here first, adding it gradually:
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zhen wang edited comment on CALCITE-1935 at 11/29/18 1:37 AM:
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yep, I will
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zhen wang commented on CALCITE-1935:
yep, I will play with it and add queries to `match.iq`. let
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zhen wang commented on CALCITE-1935:
some of the 'oracle queries' I am looking at
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zhen wang commented on CALCITE-2589:
[~julianhyde] I also mentioned set importance to zero before
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zhen wang commented on CALCITE-2223:
glad to see this pushed forward. [~vladimirsitnikov]
BTW,
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zhen wang commented on CALCITE-2620:
[~pzw2018] while this optimization surely looks reasonable,
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zhen wang commented on CALCITE-1894:
for the streaming example, it should not throw away the first
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zhen wang commented on CALCITE-2458:
with this PR, I'd start to give Kotlin a serioous look. I
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zhen wang commented on CALCITE-2287:
[~zhong.j.yu] with pleasure
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zhen wang commented on CALCITE-2223:
it is indeed connected with 1862, but this one isn't that
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zhen wang commented on CALCITE-1862:
https://github.com/apache/calcite/pull/654
[~julianhyde] let
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zhen wang commented on CALCITE-2223:
I suspect this is connected to CALCITE-1862, taking a look.
>
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zhen wang edited comment on CALCITE-1862 at 3/13/18 1:42 PM:
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removing
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zhen wang commented on CALCITE-1862:
removing either one of the two rules:
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zhen wang commented on CALCITE-1862:
{code}
before transform:
EnumerableFilter(condition=[IS
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zhen wang commented on CALCITE-971:
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okay, some mis-understanding of the linked jira. different thing.
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zhen wang commented on CALCITE-971:
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this one is done, and could be closed per PHOENIX-2383
> Add
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zhen wang commented on CALCITE-1862:
some findings
the estimate row count method it self is actually
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zhen wang commented on CALCITE-1048:
and probably relates to CALCITE-1862 as well.
> Make metadata
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zhen wang updated CALCITE-2106:
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Comment: was deleted
(was: [~vladimir.dolzhenko] what's your expected behavior here? more
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zhen wang commented on CALCITE-1894:
this might have to do with
{code}
/**
* The default file
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zhen wang commented on CALCITE-2010:
some thoughts, and need your comments [~julianhyde]
{code}
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zhen wang commented on CALCITE-2081:
updated.
> NPE in join of 2 subqueries using window functions
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zhen wang commented on CALCITE-2011:
@Test public void testSelectUnion() {
final String sql =
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zhen wang commented on CALCITE-2015:
there are just too many rules involved in the process, like 400
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zhen wang commented on CALCITE-2015:
interesting. with some "hint" planner knows not to strip the
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zhen wang commented on CALCITE-2081:
https://github.com/apache/calcite/pull/634
just like Luis
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zhen wang commented on CALCITE-2002:
updated.
> Distinct query against in-memory values is
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zhen wang commented on CALCITE-2068:
is this purely from code review perspective or there is a real
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zhen wang commented on CALCITE-2106:
[~vladimir.dolzhenko] what's your expected behavior here? more
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zhen wang commented on CALCITE-2002:
https://github.com/apache/calcite/pull/633
PR created.
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zhen wang updated CALCITE-2002:
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Comment: was deleted
(was: current conclusion is : the first query is screwed by the optimization
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zhen wang commented on CALCITE-2002:
current conclusion is : the first query is screwed by the
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zhen wang commented on CALCITE-1406:
I am looking at JIRAs from time to time and sure to lend a hand
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zhen wang commented on CALCITE-1406:
MDX, finally MDX is coming to calcite
> Enable OLAP extensions
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zhen wang commented on CALCITE-2099:
https://github.com/apache/calcite/pull/625 created.
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zhen wang commented on CALCITE-1154:
reproduce
{code}
@Test public void
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zhen wang commented on CALCITE-1154:
I also noted some interesting phenomena here, when validating
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zhen wang edited comment on CALCITE-1154 at 5/27/17 9:25 AM:
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it does look
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zhen wang edited comment on CALCITE-1154 at 5/27/17 9:18 AM:
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it does look
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zhen wang commented on CALCITE-1154:
it does look like `SELECT * is not validated and parsed
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zhen wang commented on CALCITE-1629:
[~julianhyde] continuing my original question then, what if
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zhen wang commented on CALCITE-1629:
[~julianhyde] I think I get you now. did you mean `make a input
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zhen wang commented on CALCITE-1535:
I'm good. not that familiar with sql spec.
it's just when are
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zhen wang commented on CALCITE-1535:
https://github.com/apache/calcite/pull/359
[~julianhyde]
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zhen wang commented on CALCITE-1569:
https://github.com/apache/calcite/pull/356 tests fixed with
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zhen wang commented on CALCITE-1569:
wrote another fix:
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zhen wang commented on CALCITE-1569:
hmm, what will this line look like in your mind
`/* 115 */
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zhen wang commented on CALCITE-1569:
thanks [~vladimirsitnikov] for the test case. it seems if the
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zhen wang commented on CALCITE-1227:
[~julianhyde] I took a careful look at your work. looks all
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zhen wang commented on CALCITE-1227:
I updated PR with one possible solution. don't quite like it
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zhen wang commented on CALCITE-1227:
indeed I didn't quite get how DataContext could used to help.
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zhen wang updated CALCITE-1227:
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Comment: was deleted
(was: thanks [~julianhyde], will clean up the PR once fished the remaining
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zhen wang commented on CALCITE-1227:
thanks [~julianhyde], will clean up the PR once fished the
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zhen wang commented on CALCITE-1227:
I am having some fun with this one here:
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zhen wang commented on CALCITE-1031:
thanks [~julianhyde] mine is too hacky to form a PR, I am good
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zhen wang commented on CALCITE-1031:
This is a hack which works ( all case pass )
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https://issues.apache.org/jira/browse/CALCITE-1015?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15057179#comment-15057179
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zhen wang commented on CALCITE-1015:
https://github.com/apache/calcite/pull/181
still some questions
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https://issues.apache.org/jira/browse/CALCITE-709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15054288#comment-15054288
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zhen wang edited comment on CALCITE-709 at 12/12/15 2:03 PM:
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Two
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https://issues.apache.org/jira/browse/CALCITE-709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15054288#comment-15054288
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zhen wang commented on CALCITE-709:
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Two observations for this issue (
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https://issues.apache.org/jira/browse/CALCITE-709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15054288#comment-15054288
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zhen wang edited comment on CALCITE-709 at 12/12/15 1:19 PM:
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Two
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https://issues.apache.org/jira/browse/CALCITE-709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15054288#comment-15054288
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zhen wang edited comment on CALCITE-709 at 12/12/15 2:11 PM:
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Two
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