SqlDelight 2.1.x Postgresql migrations with Flyway

see https://github.com/griffio/sqldelight-postgres-02 for Liquibase migrations

see https://github.com/griffio/sqldelight-pg-migration for "simple" migrations

https://github.com/cashapp/sqldelight

Some examples of newer postgresql support in sqldelight SNAPSHOT builds 2.1.x

Migrations performed

• create sequence
• alter sequence
• add constraint foreign key
• set default -
• set not null
• drop not null
• drop column
• rename column -
• rename table
• add check constraint
• drop identity
• alter identity

To find bugs/issues that need to be fixed/implemented

Issues

• rename column - error with validation
  • MERGED sqldelight/sqldelight#4880
• alter table ... alter column ... drop identity - support but need fixing refers to old column if column was renamed
  • MERGED sqldelight/sqldelight#4902
• alter table ... alter column ... set default - compilation error must be specified in insert statement
  • MERGED sqldelight/sqldelight#4912
• sqm files must not have post-fix numbers e.g. V1_create_test_1.sqm as this breaks the ordering

Not supported

• alter/drop sequence
  • MERGED sqldelight/sqldelight#4920
• alter table ... add constraint primary key ... (doesn't update data class property to non-nullable type)
  • MERGED sqldelight/sqldelight#5018
• add constraint check, foreign key valid and not valid clauses
• alter column col_name add generated { always | by default } as identity { ( seq_option ) }
  • MERGED sqldelight/sqldelight#4916
• alter column column_name { set generated { always | by default } | set sequence_option | restart [ [ with ] restart ] }
  • MERGED sqldelight/sqldelight#4916
• alter table drop constraint [ if exists ] identifier [ restrict | cascade ]
  • MERGED sqldelight/sqldelight#5288
• alter table add column [ if not exists ]
  • MERGED sqldelight/sqldelight#5309

Bugs

• data class import missing in generated queries source when using star INSERT INTO City (city_name) VALUES (?) RETURNING *;
  • MERGED sqldelight/sqldelight#4448
• allows unknown columns with alter table ... alter column - must show compiler error No column found to alter with name <unknown name>
  • MERGED sqldelight/sqldelight#4902
• compiler error when functions are used as DEFAULT column values
  • MERGED sqldelight/sqldelight#4934

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./gradlew build &&
./gradlew flywayMigrate

Flyway db migrations https://documentation.red-gate.com/fd/gradle-task-184127407.html