ERXMigrationTable versionDigestTable = database.newTableNamed("version_digests");
versionDigestTable.newStringColumn("digest", 40, false);
versionDigestTable.newIntegerColumn("pk", false);
versionDigestTable.newIntegerColumn("result_pk", false);
versionDigestTable.newStringColumn("rname", 255, false);
versionDigestTable.create();
versionDigestTable.setPrimaryKey("pk");
envJoinTable.addForeignKey("env_pk", "environments", "pk");
envJoinTable.addForeignKey("result_pk", "results", "pk");
failureTable.addForeignKey("result_pk", "results", "pk");