Re: Inactive modules?

[Péter Váry]

Thanks for confirming!

Zoltán Borók-Nagy  ezt írta (időpont: 2026. febr.
25., Sze, 16:33):

> I just realized that CatalogUtil can also load a Catalog implementation
> based on its class name.
> So only HadoopTables are not covered by it, but Impala can already deal
> with HadoopTables without Catalogs being involved.
>
> So yeah, we can switch to CatalogUtil. No need to keep iceberg-mr just for
> us.
>
> Cheers,
> Zoltan
>
> On Wed, Feb 25, 2026 at 4:27 PM Zoltán Borók-Nagy 
> wrote:
>
>> Thanks Peter for pointing me to CatalogUtil.
>> It provides similar functionality IIUC, but isn't as flexible:
>> - Catalogs can load any catalog implementation based on the Java class
>> name
>> - CatalogUtil can only handle a set of well-known catalog implementations
>> - Catalogs can deal with HadoopTables as well
>>
>> So this would still be a breaking change. That said, I don't know any
>> Impala user who actually needs Catalogs.
>>
>> Thanks,
>> Zoltan
>>
>> On Wed, Feb 25, 2026 at 11:09 AM Péter Váry 
>> wrote:
>>
>>> Hi Zoltan,
>>>
>>> How hard would it be to use `CatalogUtil` [1] instead?
>>>
>>> Thanks,
>>> Peter
>>>
>>> [1] - CatalogUtil.java -
>>> https://github.com/apache/iceberg/blob/d2fbe427ecec298f1600260f40fcab1b7ab2e695/core/src/main/java/org/apache/iceberg/CatalogUtil.java
>>>
>>> Zoltán Borók-Nagy  ezt írta (időpont: 2026.
>>> febr. 25., Sze, 10:59):
>>>
 Hey Anton,

 Sorry for being late to the discussion.

 Impala uses Catalogs from iceberg-mr:
 https://github.com/apache/iceberg/blob/main/mr/src/main/java/org/apache/iceberg/mr/Catalogs.java

 https://github.com/apache/impala/blob/master/fe/src/main/java/org/apache/impala/catalog/iceberg/IcebergCatalogs.java

 Do you plan to deprecate this class or move it to iceberg-core?
 I don't think it is critical for our users, but in case you want to
 deprecate it, we should also deprecate this functionality in the upcoming
 Impala 5.

 Cheers,
 Zoltan

 On Mon, Jan 26, 2026 at 11:14 PM Anton Okolnychyi <
 aokolnyc...@gmail.com> wrote:

> Great, was just checking we are making a deliberate choice. Thanks for
> the context, Vladislav!
>
> It looks like the only candidate for deprecation/removal is iceberg-mr
> then. I'll submit a separate discussion for it.
>
> пн, 19 січ. 2026 р. о 04:37 Vladislav Sidorovich via dev <
> dev@iceberg.apache.org> пише:
>
>> Hey Anton,
>>
>> Yes, that is correct. I am focusing on the translation logic.
>>
>> Regarding completeness, I plan to cover all Delta Lake features that
>> have equivalents in Apache Iceberg v3. For example, we will convert 
>> Delta’s deletion
>> vectors to Iceberg deletion vectors. However, features like
>> appendOnly won't be included as Iceberg doesn't natively support
>> them in the same way.
>>
>> In terms of *XTable*, while the tools solve similar problems, XTable
>> is a more generic solution. My implementation is specific to the
>> Delta-to-Iceberg path and directly extends the existing Iceberg API
>> .
>>
>> Additionally, I’ve been tracking XTable for over six months; it
>> appears to be less active recently and currently lacks support for key
>> features like Iceberg deletion vectors.
>>
>>
>> On Fri, Jan 16, 2026 at 3:36 AM Anton Okolnychyi <
>> aokolnyc...@gmail.com> wrote:
>>
>>> Vladislav, am I correct that you plan to focus on translation? How
>>> complete do you plan the implementation to be? Will it be different from
>>> the existing tools like X table?
>>>
>>> Maninder, thanks for sharing! It is great to know it is being used.
>>>
>>> чт, 15 січ. 2026 р. о 17:12 Maninder Parmar <
>>> parmar.maninder...@gmail.com> пише:
>>>
 Hi Anton,
 Here are the details:
 - Public documentation:
 https://docs.snowflake.com/en/user-guide/tables-iceberg-catalog
 - Yes, it's working and being actively used
 - No ongoing active development, currently in maintenance mode for
 any bug/security fixes

 On Tue, Jan 13, 2026 at 2:28 PM Anton Okolnychyi <
 aokolnyc...@gmail.com> wrote:

> - Talat, can you share how you see the future of the
> iceberg-delta-lake module and what you plan to contribute?
> - Maninder, do we have enough public documentation to explain the
> state of the module? Is it still working? Is it deprecated? What's 
> the plan?
> - iceberg-dell and iceberg-aliyun may not be actively developed
> but primarily target storage and could still be functional?
> - It seems iceberg-mr is a candidate for deprecation / removal?
>
> - Anton
>
> пн, 12 січ. 2026 р. о 12:04 Maninder Parmar <
> parmar.man

Re: Inactive modules?

[Zoltán Borók-Nagy]

I just realized that CatalogUtil can also load a Catalog implementation
based on its class name.
So only HadoopTables are not covered by it, but Impala can already deal
with HadoopTables without Catalogs being involved.

So yeah, we can switch to CatalogUtil. No need to keep iceberg-mr just for
us.

Cheers,
Zoltan

On Wed, Feb 25, 2026 at 4:27 PM Zoltán Borók-Nagy 
wrote:

> Thanks Peter for pointing me to CatalogUtil.
> It provides similar functionality IIUC, but isn't as flexible:
> - Catalogs can load any catalog implementation based on the Java class name
> - CatalogUtil can only handle a set of well-known catalog implementations
> - Catalogs can deal with HadoopTables as well
>
> So this would still be a breaking change. That said, I don't know any
> Impala user who actually needs Catalogs.
>
> Thanks,
> Zoltan
>
> On Wed, Feb 25, 2026 at 11:09 AM Péter Váry 
> wrote:
>
>> Hi Zoltan,
>>
>> How hard would it be to use `CatalogUtil` [1] instead?
>>
>> Thanks,
>> Peter
>>
>> [1] - CatalogUtil.java -
>> https://github.com/apache/iceberg/blob/d2fbe427ecec298f1600260f40fcab1b7ab2e695/core/src/main/java/org/apache/iceberg/CatalogUtil.java
>>
>> Zoltán Borók-Nagy  ezt írta (időpont: 2026.
>> febr. 25., Sze, 10:59):
>>
>>> Hey Anton,
>>>
>>> Sorry for being late to the discussion.
>>>
>>> Impala uses Catalogs from iceberg-mr:
>>> https://github.com/apache/iceberg/blob/main/mr/src/main/java/org/apache/iceberg/mr/Catalogs.java
>>>
>>> https://github.com/apache/impala/blob/master/fe/src/main/java/org/apache/impala/catalog/iceberg/IcebergCatalogs.java
>>>
>>> Do you plan to deprecate this class or move it to iceberg-core?
>>> I don't think it is critical for our users, but in case you want to
>>> deprecate it, we should also deprecate this functionality in the upcoming
>>> Impala 5.
>>>
>>> Cheers,
>>> Zoltan
>>>
>>> On Mon, Jan 26, 2026 at 11:14 PM Anton Okolnychyi 
>>> wrote:
>>>
 Great, was just checking we are making a deliberate choice. Thanks for
 the context, Vladislav!

 It looks like the only candidate for deprecation/removal is iceberg-mr
 then. I'll submit a separate discussion for it.

 пн, 19 січ. 2026 р. о 04:37 Vladislav Sidorovich via dev <
 dev@iceberg.apache.org> пише:

> Hey Anton,
>
> Yes, that is correct. I am focusing on the translation logic.
>
> Regarding completeness, I plan to cover all Delta Lake features that
> have equivalents in Apache Iceberg v3. For example, we will convert 
> Delta’s deletion
> vectors to Iceberg deletion vectors. However, features like appendOnly
> won't be included as Iceberg doesn't natively support them in the same 
> way.
>
> In terms of *XTable*, while the tools solve similar problems, XTable
> is a more generic solution. My implementation is specific to the
> Delta-to-Iceberg path and directly extends the existing Iceberg API
> .
>
> Additionally, I’ve been tracking XTable for over six months; it
> appears to be less active recently and currently lacks support for key
> features like Iceberg deletion vectors.
>
>
> On Fri, Jan 16, 2026 at 3:36 AM Anton Okolnychyi <
> aokolnyc...@gmail.com> wrote:
>
>> Vladislav, am I correct that you plan to focus on translation? How
>> complete do you plan the implementation to be? Will it be different from
>> the existing tools like X table?
>>
>> Maninder, thanks for sharing! It is great to know it is being used.
>>
>> чт, 15 січ. 2026 р. о 17:12 Maninder Parmar <
>> parmar.maninder...@gmail.com> пише:
>>
>>> Hi Anton,
>>> Here are the details:
>>> - Public documentation:
>>> https://docs.snowflake.com/en/user-guide/tables-iceberg-catalog
>>> - Yes, it's working and being actively used
>>> - No ongoing active development, currently in maintenance mode for
>>> any bug/security fixes
>>>
>>> On Tue, Jan 13, 2026 at 2:28 PM Anton Okolnychyi <
>>> aokolnyc...@gmail.com> wrote:
>>>
 - Talat, can you share how you see the future of the
 iceberg-delta-lake module and what you plan to contribute?
 - Maninder, do we have enough public documentation to explain the
 state of the module? Is it still working? Is it deprecated? What's the 
 plan?
 - iceberg-dell and iceberg-aliyun may not be actively developed but
 primarily target storage and could still be functional?
 - It seems iceberg-mr is a candidate for deprecation / removal?

 - Anton

 пн, 12 січ. 2026 р. о 12:04 Maninder Parmar <
 parmar.maninder...@gmail.com> пише:

> While we are not actively developing the iceberg-snowflake module,
> we still see many active usages for it since the migration away from 
> this
> catalog to iceberg rest based catalogs i

Re: Inactive modules?

[Zoltán Borók-Nagy]

Thanks Peter for pointing me to CatalogUtil.
It provides similar functionality IIUC, but isn't as flexible:
- Catalogs can load any catalog implementation based on the Java class name
- CatalogUtil can only handle a set of well-known catalog implementations
- Catalogs can deal with HadoopTables as well

So this would still be a breaking change. That said, I don't know any
Impala user who actually needs Catalogs.

Thanks,
Zoltan

On Wed, Feb 25, 2026 at 11:09 AM Péter Váry 
wrote:

> Hi Zoltan,
>
> How hard would it be to use `CatalogUtil` [1] instead?
>
> Thanks,
> Peter
>
> [1] - CatalogUtil.java -
> https://github.com/apache/iceberg/blob/d2fbe427ecec298f1600260f40fcab1b7ab2e695/core/src/main/java/org/apache/iceberg/CatalogUtil.java
>
> Zoltán Borók-Nagy  ezt írta (időpont: 2026.
> febr. 25., Sze, 10:59):
>
>> Hey Anton,
>>
>> Sorry for being late to the discussion.
>>
>> Impala uses Catalogs from iceberg-mr:
>> https://github.com/apache/iceberg/blob/main/mr/src/main/java/org/apache/iceberg/mr/Catalogs.java
>>
>> https://github.com/apache/impala/blob/master/fe/src/main/java/org/apache/impala/catalog/iceberg/IcebergCatalogs.java
>>
>> Do you plan to deprecate this class or move it to iceberg-core?
>> I don't think it is critical for our users, but in case you want to
>> deprecate it, we should also deprecate this functionality in the upcoming
>> Impala 5.
>>
>> Cheers,
>> Zoltan
>>
>> On Mon, Jan 26, 2026 at 11:14 PM Anton Okolnychyi 
>> wrote:
>>
>>> Great, was just checking we are making a deliberate choice. Thanks for
>>> the context, Vladislav!
>>>
>>> It looks like the only candidate for deprecation/removal is iceberg-mr
>>> then. I'll submit a separate discussion for it.
>>>
>>> пн, 19 січ. 2026 р. о 04:37 Vladislav Sidorovich via dev <
>>> dev@iceberg.apache.org> пише:
>>>
 Hey Anton,

 Yes, that is correct. I am focusing on the translation logic.

 Regarding completeness, I plan to cover all Delta Lake features that
 have equivalents in Apache Iceberg v3. For example, we will convert 
 Delta’s deletion
 vectors to Iceberg deletion vectors. However, features like appendOnly
 won't be included as Iceberg doesn't natively support them in the same way.

 In terms of *XTable*, while the tools solve similar problems, XTable
 is a more generic solution. My implementation is specific to the
 Delta-to-Iceberg path and directly extends the existing Iceberg API
 .

 Additionally, I’ve been tracking XTable for over six months; it appears
 to be less active recently and currently lacks support for key features
 like Iceberg deletion vectors.


 On Fri, Jan 16, 2026 at 3:36 AM Anton Okolnychyi 
 wrote:

> Vladislav, am I correct that you plan to focus on translation? How
> complete do you plan the implementation to be? Will it be different from
> the existing tools like X table?
>
> Maninder, thanks for sharing! It is great to know it is being used.
>
> чт, 15 січ. 2026 р. о 17:12 Maninder Parmar <
> parmar.maninder...@gmail.com> пише:
>
>> Hi Anton,
>> Here are the details:
>> - Public documentation:
>> https://docs.snowflake.com/en/user-guide/tables-iceberg-catalog
>> - Yes, it's working and being actively used
>> - No ongoing active development, currently in maintenance mode for
>> any bug/security fixes
>>
>> On Tue, Jan 13, 2026 at 2:28 PM Anton Okolnychyi <
>> aokolnyc...@gmail.com> wrote:
>>
>>> - Talat, can you share how you see the future of the
>>> iceberg-delta-lake module and what you plan to contribute?
>>> - Maninder, do we have enough public documentation to explain the
>>> state of the module? Is it still working? Is it deprecated? What's the 
>>> plan?
>>> - iceberg-dell and iceberg-aliyun may not be actively developed but
>>> primarily target storage and could still be functional?
>>> - It seems iceberg-mr is a candidate for deprecation / removal?
>>>
>>> - Anton
>>>
>>> пн, 12 січ. 2026 р. о 12:04 Maninder Parmar <
>>> parmar.maninder...@gmail.com> пише:
>>>
 While we are not actively developing the iceberg-snowflake module,
 we still see many active usages for it since the migration away from 
 this
 catalog to iceberg rest based catalogs is ongoing. Would like to keep 
 it
 here for some more time until we see the usage trend dropping to an
 acceptable level.

 On Tue, Jan 6, 2026 at 2:42 PM Talat Uyarer via dev <
 dev@iceberg.apache.org> wrote:

> We plan to upgrade iceberg-delta-lake module.
>
> -1 for iceberg-delta-lake
>
> On Tue, Dec 23, 2025 at 5:52 PM Manu Zhang <
> owenzhang1...@gmail.com> wrote:
>
>> Hi Anton,
>>
>> I checked 

Re: Inactive modules?

[Péter Váry]

Hi Zoltan,

How hard would it be to use `CatalogUtil` [1] instead?

Thanks,
Peter

[1] - CatalogUtil.java -
https://github.com/apache/iceberg/blob/d2fbe427ecec298f1600260f40fcab1b7ab2e695/core/src/main/java/org/apache/iceberg/CatalogUtil.java

Zoltán Borók-Nagy  ezt írta (időpont: 2026. febr.
25., Sze, 10:59):

> Hey Anton,
>
> Sorry for being late to the discussion.
>
> Impala uses Catalogs from iceberg-mr:
> https://github.com/apache/iceberg/blob/main/mr/src/main/java/org/apache/iceberg/mr/Catalogs.java
>
> https://github.com/apache/impala/blob/master/fe/src/main/java/org/apache/impala/catalog/iceberg/IcebergCatalogs.java
>
> Do you plan to deprecate this class or move it to iceberg-core?
> I don't think it is critical for our users, but in case you want to
> deprecate it, we should also deprecate this functionality in the upcoming
> Impala 5.
>
> Cheers,
> Zoltan
>
> On Mon, Jan 26, 2026 at 11:14 PM Anton Okolnychyi 
> wrote:
>
>> Great, was just checking we are making a deliberate choice. Thanks for
>> the context, Vladislav!
>>
>> It looks like the only candidate for deprecation/removal is iceberg-mr
>> then. I'll submit a separate discussion for it.
>>
>> пн, 19 січ. 2026 р. о 04:37 Vladislav Sidorovich via dev <
>> dev@iceberg.apache.org> пише:
>>
>>> Hey Anton,
>>>
>>> Yes, that is correct. I am focusing on the translation logic.
>>>
>>> Regarding completeness, I plan to cover all Delta Lake features that
>>> have equivalents in Apache Iceberg v3. For example, we will convert Delta’s 
>>> deletion
>>> vectors to Iceberg deletion vectors. However, features like appendOnly
>>> won't be included as Iceberg doesn't natively support them in the same way.
>>>
>>> In terms of *XTable*, while the tools solve similar problems, XTable is
>>> a more generic solution. My implementation is specific to the
>>> Delta-to-Iceberg path and directly extends the existing Iceberg API
>>> .
>>>
>>> Additionally, I’ve been tracking XTable for over six months; it appears
>>> to be less active recently and currently lacks support for key features
>>> like Iceberg deletion vectors.
>>>
>>>
>>> On Fri, Jan 16, 2026 at 3:36 AM Anton Okolnychyi 
>>> wrote:
>>>
 Vladislav, am I correct that you plan to focus on translation? How
 complete do you plan the implementation to be? Will it be different from
 the existing tools like X table?

 Maninder, thanks for sharing! It is great to know it is being used.

 чт, 15 січ. 2026 р. о 17:12 Maninder Parmar <
 parmar.maninder...@gmail.com> пише:

> Hi Anton,
> Here are the details:
> - Public documentation:
> https://docs.snowflake.com/en/user-guide/tables-iceberg-catalog
> - Yes, it's working and being actively used
> - No ongoing active development, currently in maintenance mode for any
> bug/security fixes
>
> On Tue, Jan 13, 2026 at 2:28 PM Anton Okolnychyi <
> aokolnyc...@gmail.com> wrote:
>
>> - Talat, can you share how you see the future of the
>> iceberg-delta-lake module and what you plan to contribute?
>> - Maninder, do we have enough public documentation to explain the
>> state of the module? Is it still working? Is it deprecated? What's the 
>> plan?
>> - iceberg-dell and iceberg-aliyun may not be actively developed but
>> primarily target storage and could still be functional?
>> - It seems iceberg-mr is a candidate for deprecation / removal?
>>
>> - Anton
>>
>> пн, 12 січ. 2026 р. о 12:04 Maninder Parmar <
>> parmar.maninder...@gmail.com> пише:
>>
>>> While we are not actively developing the iceberg-snowflake module,
>>> we still see many active usages for it since the migration away from 
>>> this
>>> catalog to iceberg rest based catalogs is ongoing. Would like to keep it
>>> here for some more time until we see the usage trend dropping to an
>>> acceptable level.
>>>
>>> On Tue, Jan 6, 2026 at 2:42 PM Talat Uyarer via dev <
>>> dev@iceberg.apache.org> wrote:
>>>
 We plan to upgrade iceberg-delta-lake module.

 -1 for iceberg-delta-lake

 On Tue, Dec 23, 2025 at 5:52 PM Manu Zhang 
 wrote:

> Hi Anton,
>
> I checked related issues and PRs of these modules. Except for a
> recent PR for aliyun[1], there are no activities or interests on other
> modules.
> For iceberg-delta-lake and iceberg-snowflake, I think there are
> already good external tools and platforms.  For iceberg-mr and
> iceberg-dell, I doubt whether there's any usage nowadays.
>
> +1 to deprecate/remove these modules except iceberg-aliyun.
>
>
> 1. https://github.com/apache/iceberg/pull/14443
>
>
> Merry Christmas
> Manu
>
> On Tue, Dec 23, 2025 at 11:13 AM Anton Okolny

Re: Inactive modules?

[Zoltán Borók-Nagy]

Hey Anton,

Sorry for being late to the discussion.

Impala uses Catalogs from iceberg-mr:
https://github.com/apache/iceberg/blob/main/mr/src/main/java/org/apache/iceberg/mr/Catalogs.java
https://github.com/apache/impala/blob/master/fe/src/main/java/org/apache/impala/catalog/iceberg/IcebergCatalogs.java

Do you plan to deprecate this class or move it to iceberg-core?
I don't think it is critical for our users, but in case you want to
deprecate it, we should also deprecate this functionality in the upcoming
Impala 5.

Cheers,
Zoltan

On Mon, Jan 26, 2026 at 11:14 PM Anton Okolnychyi 
wrote:

> Great, was just checking we are making a deliberate choice. Thanks for the
> context, Vladislav!
>
> It looks like the only candidate for deprecation/removal is iceberg-mr
> then. I'll submit a separate discussion for it.
>
> пн, 19 січ. 2026 р. о 04:37 Vladislav Sidorovich via dev <
> dev@iceberg.apache.org> пише:
>
>> Hey Anton,
>>
>> Yes, that is correct. I am focusing on the translation logic.
>>
>> Regarding completeness, I plan to cover all Delta Lake features that have
>> equivalents in Apache Iceberg v3. For example, we will convert Delta’s 
>> deletion
>> vectors to Iceberg deletion vectors. However, features like appendOnly
>> won't be included as Iceberg doesn't natively support them in the same way.
>>
>> In terms of *XTable*, while the tools solve similar problems, XTable is
>> a more generic solution. My implementation is specific to the
>> Delta-to-Iceberg path and directly extends the existing Iceberg API
>> .
>>
>> Additionally, I’ve been tracking XTable for over six months; it appears
>> to be less active recently and currently lacks support for key features
>> like Iceberg deletion vectors.
>>
>>
>> On Fri, Jan 16, 2026 at 3:36 AM Anton Okolnychyi 
>> wrote:
>>
>>> Vladislav, am I correct that you plan to focus on translation? How
>>> complete do you plan the implementation to be? Will it be different from
>>> the existing tools like X table?
>>>
>>> Maninder, thanks for sharing! It is great to know it is being used.
>>>
>>> чт, 15 січ. 2026 р. о 17:12 Maninder Parmar <
>>> parmar.maninder...@gmail.com> пише:
>>>
 Hi Anton,
 Here are the details:
 - Public documentation:
 https://docs.snowflake.com/en/user-guide/tables-iceberg-catalog
 - Yes, it's working and being actively used
 - No ongoing active development, currently in maintenance mode for any
 bug/security fixes

 On Tue, Jan 13, 2026 at 2:28 PM Anton Okolnychyi 
 wrote:

> - Talat, can you share how you see the future of the
> iceberg-delta-lake module and what you plan to contribute?
> - Maninder, do we have enough public documentation to explain the
> state of the module? Is it still working? Is it deprecated? What's the 
> plan?
> - iceberg-dell and iceberg-aliyun may not be actively developed but
> primarily target storage and could still be functional?
> - It seems iceberg-mr is a candidate for deprecation / removal?
>
> - Anton
>
> пн, 12 січ. 2026 р. о 12:04 Maninder Parmar <
> parmar.maninder...@gmail.com> пише:
>
>> While we are not actively developing the iceberg-snowflake module, we
>> still see many active usages for it since the migration away from this
>> catalog to iceberg rest based catalogs is ongoing. Would like to keep it
>> here for some more time until we see the usage trend dropping to an
>> acceptable level.
>>
>> On Tue, Jan 6, 2026 at 2:42 PM Talat Uyarer via dev <
>> dev@iceberg.apache.org> wrote:
>>
>>> We plan to upgrade iceberg-delta-lake module.
>>>
>>> -1 for iceberg-delta-lake
>>>
>>> On Tue, Dec 23, 2025 at 5:52 PM Manu Zhang 
>>> wrote:
>>>
 Hi Anton,

 I checked related issues and PRs of these modules. Except for a
 recent PR for aliyun[1], there are no activities or interests on other
 modules.
 For iceberg-delta-lake and iceberg-snowflake, I think there are
 already good external tools and platforms.  For iceberg-mr and
 iceberg-dell, I doubt whether there's any usage nowadays.

 +1 to deprecate/remove these modules except iceberg-aliyun.


 1. https://github.com/apache/iceberg/pull/14443


 Merry Christmas
 Manu

 On Tue, Dec 23, 2025 at 11:13 AM Anton Okolnychyi <
 aokolnyc...@gmail.com> wrote:

> Are there any inactive modules that we can deprecate / remove
> similar to Pig?
>
> - iceberg-delta-lake (last meaningful commit in 2023)
> - iceberg-snowflake (last meaningful commit in 2023)
> - iceberg-mr (last meaningful commit in early 2024)
> - iceberg-dell (last meaningful commit in 2023)
> - iceberg-aliyun (last meaningful commit in 2024)
>
>

Re: Inactive modules?

[Anton Okolnychyi]

Great, was just checking we are making a deliberate choice. Thanks for the
context, Vladislav!

It looks like the only candidate for deprecation/removal is iceberg-mr
then. I'll submit a separate discussion for it.

пн, 19 січ. 2026 р. о 04:37 Vladislav Sidorovich via dev <
dev@iceberg.apache.org> пише:

> Hey Anton,
>
> Yes, that is correct. I am focusing on the translation logic.
>
> Regarding completeness, I plan to cover all Delta Lake features that have
> equivalents in Apache Iceberg v3. For example, we will convert Delta’s 
> deletion
> vectors to Iceberg deletion vectors. However, features like appendOnly
> won't be included as Iceberg doesn't natively support them in the same way.
>
> In terms of *XTable*, while the tools solve similar problems, XTable is a
> more generic solution. My implementation is specific to the
> Delta-to-Iceberg path and directly extends the existing Iceberg API
> .
>
> Additionally, I’ve been tracking XTable for over six months; it appears to
> be less active recently and currently lacks support for key features like
> Iceberg deletion vectors.
>
>
> On Fri, Jan 16, 2026 at 3:36 AM Anton Okolnychyi 
> wrote:
>
>> Vladislav, am I correct that you plan to focus on translation? How
>> complete do you plan the implementation to be? Will it be different from
>> the existing tools like X table?
>>
>> Maninder, thanks for sharing! It is great to know it is being used.
>>
>> чт, 15 січ. 2026 р. о 17:12 Maninder Parmar 
>> пише:
>>
>>> Hi Anton,
>>> Here are the details:
>>> - Public documentation:
>>> https://docs.snowflake.com/en/user-guide/tables-iceberg-catalog
>>> - Yes, it's working and being actively used
>>> - No ongoing active development, currently in maintenance mode for any
>>> bug/security fixes
>>>
>>> On Tue, Jan 13, 2026 at 2:28 PM Anton Okolnychyi 
>>> wrote:
>>>
 - Talat, can you share how you see the future of the iceberg-delta-lake
 module and what you plan to contribute?
 - Maninder, do we have enough public documentation to explain the state
 of the module? Is it still working? Is it deprecated? What's the plan?
 - iceberg-dell and iceberg-aliyun may not be actively developed but
 primarily target storage and could still be functional?
 - It seems iceberg-mr is a candidate for deprecation / removal?

 - Anton

 пн, 12 січ. 2026 р. о 12:04 Maninder Parmar <
 parmar.maninder...@gmail.com> пише:

> While we are not actively developing the iceberg-snowflake module, we
> still see many active usages for it since the migration away from this
> catalog to iceberg rest based catalogs is ongoing. Would like to keep it
> here for some more time until we see the usage trend dropping to an
> acceptable level.
>
> On Tue, Jan 6, 2026 at 2:42 PM Talat Uyarer via dev <
> dev@iceberg.apache.org> wrote:
>
>> We plan to upgrade iceberg-delta-lake module.
>>
>> -1 for iceberg-delta-lake
>>
>> On Tue, Dec 23, 2025 at 5:52 PM Manu Zhang 
>> wrote:
>>
>>> Hi Anton,
>>>
>>> I checked related issues and PRs of these modules. Except for a
>>> recent PR for aliyun[1], there are no activities or interests on other
>>> modules.
>>> For iceberg-delta-lake and iceberg-snowflake, I think there are
>>> already good external tools and platforms.  For iceberg-mr and
>>> iceberg-dell, I doubt whether there's any usage nowadays.
>>>
>>> +1 to deprecate/remove these modules except iceberg-aliyun.
>>>
>>>
>>> 1. https://github.com/apache/iceberg/pull/14443
>>>
>>>
>>> Merry Christmas
>>> Manu
>>>
>>> On Tue, Dec 23, 2025 at 11:13 AM Anton Okolnychyi <
>>> aokolnyc...@gmail.com> wrote:
>>>
 Are there any inactive modules that we can deprecate / remove
 similar to Pig?

 - iceberg-delta-lake (last meaningful commit in 2023)
 - iceberg-snowflake (last meaningful commit in 2023)
 - iceberg-mr (last meaningful commit in early 2024)
 - iceberg-dell (last meaningful commit in 2023)
 - iceberg-aliyun (last meaningful commit in 2024)

 - Anton

>>>
>
> --
> Best regards,
> Vladislav Sidorovich
>
> Feedback: *go/feedback-for-vladislav
>  *
> [image: Google Logo]
>
>
>

Re: Inactive modules?

[Vladislav Sidorovich via dev]

Hey Anton,

Yes, that is correct. I am focusing on the translation logic.

Regarding completeness, I plan to cover all Delta Lake features that have
equivalents in Apache Iceberg v3. For example, we will convert Delta’s deletion
vectors to Iceberg deletion vectors. However, features like appendOnly
won't be included as Iceberg doesn't natively support them in the same way.

In terms of *XTable*, while the tools solve similar problems, XTable is a
more generic solution. My implementation is specific to the
Delta-to-Iceberg path and directly extends the existing Iceberg API
.

Additionally, I’ve been tracking XTable for over six months; it appears to
be less active recently and currently lacks support for key features like
Iceberg deletion vectors.


On Fri, Jan 16, 2026 at 3:36 AM Anton Okolnychyi 
wrote:

> Vladislav, am I correct that you plan to focus on translation? How
> complete do you plan the implementation to be? Will it be different from
> the existing tools like X table?
>
> Maninder, thanks for sharing! It is great to know it is being used.
>
> чт, 15 січ. 2026 р. о 17:12 Maninder Parmar 
> пише:
>
>> Hi Anton,
>> Here are the details:
>> - Public documentation:
>> https://docs.snowflake.com/en/user-guide/tables-iceberg-catalog
>> - Yes, it's working and being actively used
>> - No ongoing active development, currently in maintenance mode for any
>> bug/security fixes
>>
>> On Tue, Jan 13, 2026 at 2:28 PM Anton Okolnychyi 
>> wrote:
>>
>>> - Talat, can you share how you see the future of the iceberg-delta-lake
>>> module and what you plan to contribute?
>>> - Maninder, do we have enough public documentation to explain the state
>>> of the module? Is it still working? Is it deprecated? What's the plan?
>>> - iceberg-dell and iceberg-aliyun may not be actively developed but
>>> primarily target storage and could still be functional?
>>> - It seems iceberg-mr is a candidate for deprecation / removal?
>>>
>>> - Anton
>>>
>>> пн, 12 січ. 2026 р. о 12:04 Maninder Parmar <
>>> parmar.maninder...@gmail.com> пише:
>>>
 While we are not actively developing the iceberg-snowflake module, we
 still see many active usages for it since the migration away from this
 catalog to iceberg rest based catalogs is ongoing. Would like to keep it
 here for some more time until we see the usage trend dropping to an
 acceptable level.

 On Tue, Jan 6, 2026 at 2:42 PM Talat Uyarer via dev <
 dev@iceberg.apache.org> wrote:

> We plan to upgrade iceberg-delta-lake module.
>
> -1 for iceberg-delta-lake
>
> On Tue, Dec 23, 2025 at 5:52 PM Manu Zhang 
> wrote:
>
>> Hi Anton,
>>
>> I checked related issues and PRs of these modules. Except for a
>> recent PR for aliyun[1], there are no activities or interests on other
>> modules.
>> For iceberg-delta-lake and iceberg-snowflake, I think there are
>> already good external tools and platforms.  For iceberg-mr and
>> iceberg-dell, I doubt whether there's any usage nowadays.
>>
>> +1 to deprecate/remove these modules except iceberg-aliyun.
>>
>>
>> 1. https://github.com/apache/iceberg/pull/14443
>>
>>
>> Merry Christmas
>> Manu
>>
>> On Tue, Dec 23, 2025 at 11:13 AM Anton Okolnychyi <
>> aokolnyc...@gmail.com> wrote:
>>
>>> Are there any inactive modules that we can deprecate / remove
>>> similar to Pig?
>>>
>>> - iceberg-delta-lake (last meaningful commit in 2023)
>>> - iceberg-snowflake (last meaningful commit in 2023)
>>> - iceberg-mr (last meaningful commit in early 2024)
>>> - iceberg-dell (last meaningful commit in 2023)
>>> - iceberg-aliyun (last meaningful commit in 2024)
>>>
>>> - Anton
>>>
>>

-- 
Best regards,
Vladislav Sidorovich

Feedback: *go/feedback-for-vladislav
 *
[image: Google Logo]

Re: Inactive modules?

[Anton Okolnychyi]

Vladislav, am I correct that you plan to focus on translation? How complete
do you plan the implementation to be? Will it be different from the
existing tools like X table?

Maninder, thanks for sharing! It is great to know it is being used.

чт, 15 січ. 2026 р. о 17:12 Maninder Parmar 
пише:

> Hi Anton,
> Here are the details:
> - Public documentation:
> https://docs.snowflake.com/en/user-guide/tables-iceberg-catalog
> - Yes, it's working and being actively used
> - No ongoing active development, currently in maintenance mode for any
> bug/security fixes
>
> On Tue, Jan 13, 2026 at 2:28 PM Anton Okolnychyi 
> wrote:
>
>> - Talat, can you share how you see the future of the iceberg-delta-lake
>> module and what you plan to contribute?
>> - Maninder, do we have enough public documentation to explain the state
>> of the module? Is it still working? Is it deprecated? What's the plan?
>> - iceberg-dell and iceberg-aliyun may not be actively developed but
>> primarily target storage and could still be functional?
>> - It seems iceberg-mr is a candidate for deprecation / removal?
>>
>> - Anton
>>
>> пн, 12 січ. 2026 р. о 12:04 Maninder Parmar 
>> пише:
>>
>>> While we are not actively developing the iceberg-snowflake module, we
>>> still see many active usages for it since the migration away from this
>>> catalog to iceberg rest based catalogs is ongoing. Would like to keep it
>>> here for some more time until we see the usage trend dropping to an
>>> acceptable level.
>>>
>>> On Tue, Jan 6, 2026 at 2:42 PM Talat Uyarer via dev <
>>> dev@iceberg.apache.org> wrote:
>>>
 We plan to upgrade iceberg-delta-lake module.

 -1 for iceberg-delta-lake

 On Tue, Dec 23, 2025 at 5:52 PM Manu Zhang 
 wrote:

> Hi Anton,
>
> I checked related issues and PRs of these modules. Except for a recent
> PR for aliyun[1], there are no activities or interests on other modules.
> For iceberg-delta-lake and iceberg-snowflake, I think there are
> already good external tools and platforms.  For iceberg-mr and
> iceberg-dell, I doubt whether there's any usage nowadays.
>
> +1 to deprecate/remove these modules except iceberg-aliyun.
>
>
> 1. https://github.com/apache/iceberg/pull/14443
>
>
> Merry Christmas
> Manu
>
> On Tue, Dec 23, 2025 at 11:13 AM Anton Okolnychyi <
> aokolnyc...@gmail.com> wrote:
>
>> Are there any inactive modules that we can deprecate / remove similar
>> to Pig?
>>
>> - iceberg-delta-lake (last meaningful commit in 2023)
>> - iceberg-snowflake (last meaningful commit in 2023)
>> - iceberg-mr (last meaningful commit in early 2024)
>> - iceberg-dell (last meaningful commit in 2023)
>> - iceberg-aliyun (last meaningful commit in 2024)
>>
>> - Anton
>>
>

Re: Inactive modules?

[Maninder Parmar]

Hi Anton,
Here are the details:
- Public documentation:
https://docs.snowflake.com/en/user-guide/tables-iceberg-catalog
- Yes, it's working and being actively used
- No ongoing active development, currently in maintenance mode for any
bug/security fixes

On Tue, Jan 13, 2026 at 2:28 PM Anton Okolnychyi 
wrote:

> - Talat, can you share how you see the future of the iceberg-delta-lake
> module and what you plan to contribute?
> - Maninder, do we have enough public documentation to explain the state of
> the module? Is it still working? Is it deprecated? What's the plan?
> - iceberg-dell and iceberg-aliyun may not be actively developed but
> primarily target storage and could still be functional?
> - It seems iceberg-mr is a candidate for deprecation / removal?
>
> - Anton
>
> пн, 12 січ. 2026 р. о 12:04 Maninder Parmar 
> пише:
>
>> While we are not actively developing the iceberg-snowflake module, we
>> still see many active usages for it since the migration away from this
>> catalog to iceberg rest based catalogs is ongoing. Would like to keep it
>> here for some more time until we see the usage trend dropping to an
>> acceptable level.
>>
>> On Tue, Jan 6, 2026 at 2:42 PM Talat Uyarer via dev <
>> dev@iceberg.apache.org> wrote:
>>
>>> We plan to upgrade iceberg-delta-lake module.
>>>
>>> -1 for iceberg-delta-lake
>>>
>>> On Tue, Dec 23, 2025 at 5:52 PM Manu Zhang 
>>> wrote:
>>>
 Hi Anton,

 I checked related issues and PRs of these modules. Except for a recent
 PR for aliyun[1], there are no activities or interests on other modules.
 For iceberg-delta-lake and iceberg-snowflake, I think there are already
 good external tools and platforms.  For iceberg-mr and iceberg-dell, I
 doubt whether there's any usage nowadays.

 +1 to deprecate/remove these modules except iceberg-aliyun.


 1. https://github.com/apache/iceberg/pull/14443


 Merry Christmas
 Manu

 On Tue, Dec 23, 2025 at 11:13 AM Anton Okolnychyi <
 aokolnyc...@gmail.com> wrote:

> Are there any inactive modules that we can deprecate / remove similar
> to Pig?
>
> - iceberg-delta-lake (last meaningful commit in 2023)
> - iceberg-snowflake (last meaningful commit in 2023)
> - iceberg-mr (last meaningful commit in early 2024)
> - iceberg-dell (last meaningful commit in 2023)
> - iceberg-aliyun (last meaningful commit in 2024)
>
> - Anton
>

Re: Inactive modules?

[Anton Okolnychyi]

- Talat, can you share how you see the future of the iceberg-delta-lake
module and what you plan to contribute?
- Maninder, do we have enough public documentation to explain the state of
the module? Is it still working? Is it deprecated? What's the plan?
- iceberg-dell and iceberg-aliyun may not be actively developed but
primarily target storage and could still be functional?
- It seems iceberg-mr is a candidate for deprecation / removal?

- Anton

пн, 12 січ. 2026 р. о 12:04 Maninder Parmar 
пише:

> While we are not actively developing the iceberg-snowflake module, we
> still see many active usages for it since the migration away from this
> catalog to iceberg rest based catalogs is ongoing. Would like to keep it
> here for some more time until we see the usage trend dropping to an
> acceptable level.
>
> On Tue, Jan 6, 2026 at 2:42 PM Talat Uyarer via dev <
> dev@iceberg.apache.org> wrote:
>
>> We plan to upgrade iceberg-delta-lake module.
>>
>> -1 for iceberg-delta-lake
>>
>> On Tue, Dec 23, 2025 at 5:52 PM Manu Zhang 
>> wrote:
>>
>>> Hi Anton,
>>>
>>> I checked related issues and PRs of these modules. Except for a recent
>>> PR for aliyun[1], there are no activities or interests on other modules.
>>> For iceberg-delta-lake and iceberg-snowflake, I think there are already
>>> good external tools and platforms.  For iceberg-mr and iceberg-dell, I
>>> doubt whether there's any usage nowadays.
>>>
>>> +1 to deprecate/remove these modules except iceberg-aliyun.
>>>
>>>
>>> 1. https://github.com/apache/iceberg/pull/14443
>>>
>>>
>>> Merry Christmas
>>> Manu
>>>
>>> On Tue, Dec 23, 2025 at 11:13 AM Anton Okolnychyi 
>>> wrote:
>>>
 Are there any inactive modules that we can deprecate / remove similar
 to Pig?

 - iceberg-delta-lake (last meaningful commit in 2023)
 - iceberg-snowflake (last meaningful commit in 2023)
 - iceberg-mr (last meaningful commit in early 2024)
 - iceberg-dell (last meaningful commit in 2023)
 - iceberg-aliyun (last meaningful commit in 2024)

 - Anton

>>>

Re: Inactive modules?

[Maninder Parmar]

While we are not actively developing the iceberg-snowflake module, we still
see many active usages for it since the migration away from this catalog to
iceberg rest based catalogs is ongoing. Would like to keep it here for some
more time until we see the usage trend dropping to an acceptable level.

On Tue, Jan 6, 2026 at 2:42 PM Talat Uyarer via dev 
wrote:

> We plan to upgrade iceberg-delta-lake module.
>
> -1 for iceberg-delta-lake
>
> On Tue, Dec 23, 2025 at 5:52 PM Manu Zhang 
> wrote:
>
>> Hi Anton,
>>
>> I checked related issues and PRs of these modules. Except for a recent PR
>> for aliyun[1], there are no activities or interests on other modules.
>> For iceberg-delta-lake and iceberg-snowflake, I think there are already
>> good external tools and platforms.  For iceberg-mr and iceberg-dell, I
>> doubt whether there's any usage nowadays.
>>
>> +1 to deprecate/remove these modules except iceberg-aliyun.
>>
>>
>> 1. https://github.com/apache/iceberg/pull/14443
>>
>>
>> Merry Christmas
>> Manu
>>
>> On Tue, Dec 23, 2025 at 11:13 AM Anton Okolnychyi 
>> wrote:
>>
>>> Are there any inactive modules that we can deprecate / remove similar to
>>> Pig?
>>>
>>> - iceberg-delta-lake (last meaningful commit in 2023)
>>> - iceberg-snowflake (last meaningful commit in 2023)
>>> - iceberg-mr (last meaningful commit in early 2024)
>>> - iceberg-dell (last meaningful commit in 2023)
>>> - iceberg-aliyun (last meaningful commit in 2024)
>>>
>>> - Anton
>>>
>>

Re: Inactive modules?

[Talat Uyarer via dev]

We plan to upgrade iceberg-delta-lake module.

-1 for iceberg-delta-lake

On Tue, Dec 23, 2025 at 5:52 PM Manu Zhang  wrote:

> Hi Anton,
>
> I checked related issues and PRs of these modules. Except for a recent PR
> for aliyun[1], there are no activities or interests on other modules.
> For iceberg-delta-lake and iceberg-snowflake, I think there are already
> good external tools and platforms.  For iceberg-mr and iceberg-dell, I
> doubt whether there's any usage nowadays.
>
> +1 to deprecate/remove these modules except iceberg-aliyun.
>
>
> 1. https://github.com/apache/iceberg/pull/14443
>
>
> Merry Christmas
> Manu
>
> On Tue, Dec 23, 2025 at 11:13 AM Anton Okolnychyi 
> wrote:
>
>> Are there any inactive modules that we can deprecate / remove similar to
>> Pig?
>>
>> - iceberg-delta-lake (last meaningful commit in 2023)
>> - iceberg-snowflake (last meaningful commit in 2023)
>> - iceberg-mr (last meaningful commit in early 2024)
>> - iceberg-dell (last meaningful commit in 2023)
>> - iceberg-aliyun (last meaningful commit in 2024)
>>
>> - Anton
>>
>

Re: Inactive modules?

[Manu Zhang]

Hi Anton,

I checked related issues and PRs of these modules. Except for a recent PR
for aliyun[1], there are no activities or interests on other modules.
For iceberg-delta-lake and iceberg-snowflake, I think there are already
good external tools and platforms.  For iceberg-mr and iceberg-dell, I
doubt whether there's any usage nowadays.

+1 to deprecate/remove these modules except iceberg-aliyun.


1. https://github.com/apache/iceberg/pull/14443


Merry Christmas
Manu

On Tue, Dec 23, 2025 at 11:13 AM Anton Okolnychyi 
wrote:

> Are there any inactive modules that we can deprecate / remove similar to
> Pig?
>
> - iceberg-delta-lake (last meaningful commit in 2023)
> - iceberg-snowflake (last meaningful commit in 2023)
> - iceberg-mr (last meaningful commit in early 2024)
> - iceberg-dell (last meaningful commit in 2023)
> - iceberg-aliyun (last meaningful commit in 2024)
>
> - Anton
>