[Koha-bugs] [Bug 29605] Add missing UNIQUE constraints in kohastructure.sql (Bug 15067 follow-up)

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=29605

--- Comment #1 from Tomás Cohen Arazi <tomascohen at gmail.com> ---
Created attachment 128113
  -->
https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=128113&action=edit
Bug 29605: Add missing constraints from bug 15067

This patch fixes a missed update to kohastructure.sql.

To test:
1. Checkout prior to bug 15067
(ab270c026be06f08745a14d1aea992877d20f812) would work.
2.  Run:
   $ reset_all
3. Checkout v21.11.00
4. Run:
   $ updatedatabase
   $ koha-mysql kohadev
   > SHOW CREATE TABLE language_subtag_registry;
=> SUCCESS: There's UNIQUE KEY uniq_lang (subtag, type)
5. Run:
   > SHOW CREATE TABLE language_descriptions;
=>  SUCCESS: There's UNIQUE KEY uniq_desc (subtag, type, lang)
6. Run:
   > SHOW CREATE TABLE language_rfc4646_to_iso639;
=> SUCCESS: There's UNIQUE KEY uniq_code (rfc4646_subtag, iso639_2_code)
7. Replicate a fresh install. Run:
   $ reset_all
8. Repeat 4, 5 and 6
=> FAIL: The UNIQUE constraints are not there!
9. Apply this patch
10. Run:
   $ reset_all
11. Repeat 8
=> SUCCESS: The UNIQUE constraints are there!
12. Sign off :-D

Signed-off-by: Tomas Cohen Arazi <tomascohen at theke.io>

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