Nick Richter

org.postgresql.util.PSQLException: ERROR: deadlock detected

1

 Came across this as I was testing QuantumDB with a batch size of 100.000 (takes +-3 seconds), which might be too large and might take too...

Migration in batches taking increasingly longer

5

I am testing QuantumDB's migration speed and performance degradation with and without load. The following is all still without any load on the database. I have various sizes of databases...

Error when forking multiple changesets that include foreign key constraints

1

Error java.lang.IllegalStateException: Identities of parent table: table_e431767ad3 should be migrated before copying records of: table_a95538de33 at com.google.common.base.Preconditions.checkState(Preconditions.java:510) at io.quantumdb.core.backends.planner.PlanValidator.verifyThatNotNullableForeignKeysAreSatisfiedBeforeInitialCopy(PlanValidator.java:189) at io.quantumdb.core.backends.planner.PlanValidator.validate(PlanValidator.java:25) at io.quantumdb.core.planner.PostgresqlMigrator.applySchemaChanges(PostgresqlMigrator.java:64) at io.quantumdb.core.migration.Migrator.migrate(Migrator.java:97) I was trying to build...

Automatic removal of newly created tables when an error occures

1

Whenever I am testing QuantumDB and some error occurs, I have to either remake the database to start over or delete the tables that were made (I don't really have...