Move index creation from reference_data.sql into Flyway baseline. #7256

scripts/database/reference_data.sql

@@ -26,19 +26,6 @@ INSERT INTO guestbook(
     VALUES (  false, true, false, now(),
             'Default', false, false, null);
 
--- TODO: Remove if http://stackoverflow.com/questions/25743191/how-to-add-a-case-insensitive-jpa-unique-constraint
--- gets an answer. See also https://github.com/IQSS/dataverse/issues/2598#issuecomment-158219334
-CREATE UNIQUE INDEX dataverse_alias_unique_idx on dataverse (LOWER(alias));
-CREATE UNIQUE INDEX index_authenticateduser_lower_email ON authenticateduser (lower(email));
--- CREATE UNIQUE INDEX index_authenticateduser_lower_useridentifier ON authenticateduser (lower(useridentifier));
--- this field has been removed from builtinuser; CREATE UNIQUE INDEX index_builtinuser_lower_email ON builtinuser (lower(email));
-
---Edit Dataset: Investigate and correct multiple draft issue: https://github.com/IQSS/dataverse/issues/2132
---This unique index will prevent the multiple draft issue
-CREATE UNIQUE INDEX one_draft_version_per_dataset ON datasetversion
-(dataset_id) WHERE versionstate='DRAFT';
-
-
 INSERT INTO worldmapauth_tokentype
 (   name,
     created,

src/main/resources/db/migration/V1__flyway_schema_baseline.sql

@@ -0,0 +1,11 @@
+-- TODO: we still should add the real base line here, too. That would avoid conflicts between EclipseLink
+--       trying to create new tables on existing databases. See https://github.com/IQSS/dataverse/issues/5871
+
+-- This is unsupported by JPA, as it is PostgreSQL specific. Has to be done here, cannot be done in code.
+-- (Only other option would be a lowercase copy of the data as a separate column, automatically filled py JPA)
+CREATE UNIQUE INDEX IF NOT EXISTS dataverse_alias_unique_idx on dataverse (LOWER(alias));
+CREATE UNIQUE INDEX IF NOT EXISTS index_authenticateduser_lower_email ON authenticateduser (lower(email));
+
+-- Edit Dataset: Investigate and correct multiple draft issue: https://github.com/IQSS/dataverse/issues/2132
+-- This unique index will prevent the multiple draft issue, yet it cannot be done in JPA code.
+CREATE UNIQUE INDEX IF NOT EXISTS one_draft_version_per_dataset ON datasetversion (dataset_id) WHERE versionstate='DRAFT';