Hi Xiao,
I am not sure if we support "alter table ... add column ... after ..."
statement, as some databases do not support this syntax.
We do support "alter table ... add column ..." statement. An example can be
found in MultiJdbcSchemaJoinTest#testSchemaConsistency, which may be
helpful.
Best,
Hi Liya：
Thanks for your suggestion！
Here is the demo i ran using SqlParser:
--
String sql = "ALTER TABLE `test`.`mysql_sink_test_1` ADD COLUMN `col_for_test`
varchar(255) NULL AFTER `col_binary_1`;
SqlParser.Config mysqlConfig =
Hi Xiao,
It's hard to diagnose the problem without seeing your code.
My suggestion is that you can debug some test cases in our code base
(related to SqlParser), and check how it works.
Best,
Liya Fan
On Wed, Nov 4, 2020 at 10:34 AM xiao cai wrote:
> Hi
> I just want to konw how to parse the
Hi
I just want to konw how to parse the sql statement of DDL. I had use SqlParser
to do this, but it was failed.
Is someone can help me , thank you very mush.
Best xiao.
H Jason,
Calcite is a great Logical optimizer Framework that can be used to do very
sophisticated data federation and query rewriting.
But I don't think you want to use Calcite as it is to perform the physical
join between 2 big data systems.
To put it simply If you are using Calcite you need to
Wang Yanlin created CALCITE-4376:
Summary: Materialized view recognition fails when target output
different column sequence with GROUP BY
Key: CALCITE-4376
URL: https://issues.apache.org/jira/browse/CALCITE-4376
> If `order by` is
> not pushed down to the underlying database, then how does Calcite handle
> this operator?
It will generate a plan with sort operator on top of the data source.
> Will it read all data provided by the underlying database
> and enumerate it to sort?
I believe so.
> If so,
Hi Jason,
Absolutely it is.
On 2020/11/03 20:53:08, Jason Chen wrote:
> Hey,
>
> I am Jason Chen from Shopify Data Science and Engineering team. I have a few
> questions regarding the Apache Calcite, and I am not sure if the Apache
> Calcite fits our use cases. Feel free to point me to the
It's going to be difficult to find time to do this. I would appreciate
some help.
Julian
On Sun, Nov 1, 2020 at 11:46 PM Vladimir Sitnikov
wrote:
>
> Hey Julian, thank you for rolling search/sarg expression. I believe it is a
> valuable feature.
>
> Unfortunately, the new feature causes
Hi all,
I'd like to ask some questions about the Calcite adapter. If `order by` is
not pushed down to the underlying database, then how does Calcite handle
this operator? Will it read all data provided by the underlying database
and enumerate it to sort? If so, how to guarantee the performance
Hey,
I am Jason Chen from Shopify Data Science and Engineering team. I have a few
questions regarding the Apache Calcite, and I am not sure if the Apache Calcite
fits our use cases. Feel free to point me to the correct email or Slack channel
if this email is not the correct one for asking
Jiatao Tao created CALCITE-4375:
---
Summary: merge join condition that has "OR" as much as possible
Key: CALCITE-4375
URL: https://issues.apache.org/jira/browse/CALCITE-4375
Project: Calcite
Wang Yanlin created CALCITE-4374:
Summary: Support materialized view recognition when query distinct
aggregate on target GROUP BY column
Key: CALCITE-4374
URL: https://issues.apache.org/jira/browse/CALCITE-4374
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