[CH-320] Support space function

[KevinyhZou]

What changes were proposed in this pull request?

Support space function for clickhouse
the releated pr: Kyligence/ClickHouse#321
the realted issue: Kyligence/ClickHouse#320

How was this patch tested?

by add unit test in GlutenClickHouseTPCHSUite.scala

[github-actions]

Thanks for opening a pull request!

Could you open an issue for this pull request on Github Issues?

https://github.com/oap-project/gluten/issues

Then could you also rename commit message and pull request title in the following format?

[Gluten-${ISSUES_ID}] ${detailed message}

See also:

• Other pull requests

[zzcclp]

it needs to modify ch backend to support this function ?
please rebase

[KevinyhZou]

@zzcclp rebase done. this function use repeat function to implement, I have sumit a pr to ch to support this function: ClickHouse/ClickHouse#47049, and it was suggested to use repeat function replace this.

[zzcclp]

please rebase and rerun all test case

[kyligence-git]

Can one of the admins verify this patch?

[KevinyhZou]

done @zzcclp

[zzcclp]

LGTM

[zzcclp]

BTW, @rui-mo please help to check whether velox supports this function ?

[rui-mo]

BTW, @rui-mo please help to check whether velox supports this function ?

@zzcclp Looks not yet. It's OK to add it in Gluten because it will fallback if there is no registration for this function in Velox.

[zzcclp]

BTW, @rui-mo please help to check whether velox supports this function ?

@zzcclp Looks not yet. It's OK to add it in Gluten because it will fallback if there is no registration for this function in Velox.

does it need to add this function into VELOX_EXPR_BLACKLIST ?

[rui-mo]

does it need to add this function into VELOX_EXPR_BLACKLIST ?

@zzcclp That is only temporarily needed for those implemented in Velox but have different semantics or results. For the unimplemented ones, a search to the function registration map will help reject.