MDEV-38583 : Fix TO_DATE Urdu parsing mismatch with Oracle

[Mahmoud-kh1]

The problem :
previously, TO_DATE() would return NULL when using Urdu month or day names

The bug :
I found the bug is a mismatch for certain characters in days and months

Key changes :

• fixed the harded coded words by replacing all with standard urdu and shows the hexa to ensure it's correct
• added test to verify the query run without any problem and hexa based testing to ensure there is no typo or mismatching characters.

Now it works as intended

issue ID:
MDEV-38583

[gkodinov]

Thank you for your contribution. This is a preliminary review.
Couple of things:

• Please add a better commit message that according to the coding standard: describes what the issue is, how it was fixed and how it was tested.
• I do not see the CLA bot confirmation. Please rectify this
• I would add some HEX codes into the tests to make sure the relevant encoded texts (day names) are spelled correctly.

[Mahmoud-kh1]

Thank you for your contribution. This is a preliminary review. Couple of things:

* Please add a better commit message that according to the coding standard: describes what the issue is, how it was fixed and how it was tested.

* I do not see the CLA bot confirmation. Please rectify this

* I would add some HEX codes into the tests to make sure the relevant encoded texts (day names) are spelled correctly.

I fixed the tests and description of pr and commit message , for the CLA bot I don't know what's the problem exactly but its check passes here

[gkodinov]

Thank you! LGTM. Please stand by for the final review.

[abarkov]

The patch looks correct for me.
The new locale data matches Unicode Locale Data at:
https://github.com/unicode-org/cldr/blob/main/common/main/ur.xml

Can you please backport the patch to 12.3, so we merge it into the earliest version which supports TO_DATE() - since 12.3.1.

Another option would be to backport to 10.6, but this will need rewritting tests using STR_TO_DATE() instead of TO_DATE().

Thanks.

[Mahmoud-kh1]

The patch looks correct for me. The new locale data matches Unicode Locale Data at: https://github.com/unicode-org/cldr/blob/main/common/main/ur.xml

Can you please backport the patch to 12.3, so we merge it into the earliest version which supports TO_DATE() - since 12.3.1.

Another option would be to backport to 10.6, but this will need rewritting tests using STR_TO_DATE() instead of TO_DATE().

Thanks.

done , I backport it to 12.3