flyway:clean fails on db2 when trying to drop versioning on tables which is accessed by a MQT

[msallstr]

What version of Flyway are you using?

4.2.0

Which client are you using? (Command-line, Java API, Maven plugin, Gradle plugin, SBT plugin, ANT tasks)

maven plugin

What database are you using (type & version)?

db2 10.5

What operating system are you using?

windows/linux

What did you do?

(Please include the content causing the issue, any relevant configuration settings, and the command you ran)

flyway:clean

What did you expect to see?

[INFO] Successfully dropped schema "TESTSCHEMA" (execution time 00:10.829s)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 17.108 s
[INFO] Finished at: 2017-05-27T14:49:59+02:00
[INFO] Final Memory: 28M/407M
[INFO] ------------------------------------------------------------------------

What did you see instead?

[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 7.076 s
[INFO] Finished at: 2017-05-27T14:54:01+02:00
[INFO] Final Memory: 27M/406M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.flywaydb:flyway-maven-plugin:4.2.0:clean (default-cli) on project uppfoljning: org.flywaydb.core.internal.dbsupport.FlywaySqlException:
[ERROR] Unable to clean schema "TESTSCHEMA"
[ERROR] ------------------------------------
[ERROR] SQL State : 42997
[ERROR] Error Code : -270
[ERROR] Message : DB2 SQL Error: SQLCODE=-270, SQLSTATE=42997, SQLERRMC=21, DRIVER=4.19.66
...

SQL State  : 42997
Error Code : -270
Message    : DB2 SQL Error: SQLCODE=-270, SQLSTATE=42997, SQLERRMC=21, DRIVER=4.19.66

        at org.flywaydb.maven.AbstractFlywayMojo.execute(AbstractFlywayMojo.java:602)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
        ... 20 more
Caused by: com.ibm.db2.jcc.am.SqlSyntaxErrorException: DB2 SQL Error: SQLCODE=-270, SQLSTATE=42997, SQLERRMC=21, DRIVER=4.19.66
        at com.ibm.db2.jcc.am.kd.a(kd.java:747)
        at com.ibm.db2.jcc.am.kd.a(kd.java:66)
        at com.ibm.db2.jcc.am.kd.a(kd.java:135)
        at com.ibm.db2.jcc.am.fp.b(fp.java:2439)
        at com.ibm.db2.jcc.am.fp.c(fp.java:2422)
        at com.ibm.db2.jcc.t4.bb.l(bb.java:408)
        at com.ibm.db2.jcc.t4.bb.a(bb.java:62)
        at com.ibm.db2.jcc.t4.p.a(p.java:50)
        at com.ibm.db2.jcc.t4.wb.b(wb.java:220)
        at com.ibm.db2.jcc.am.gp.uc(gp.java:3564)
        at com.ibm.db2.jcc.am.gp.b(gp.java:4549)
        at com.ibm.db2.jcc.am.gp.oc(gp.java:2867)
        at com.ibm.db2.jcc.am.gp.execute(gp.java:2842)
        at org.flywaydb.core.internal.dbsupport.JdbcTemplate.execute(JdbcTemplate.java:248)
        at org.flywaydb.core.internal.dbsupport.db2.DB2Schema.doClean(DB2Schema.java:81)
        at org.flywaydb.core.internal.dbsupport.Schema.clean(Schema.java:148)
        at org.flywaydb.core.internal.dbsupport.db2.DB2Schema.doDrop(DB2Schema.java:69)
        at org.flywaydb.core.internal.dbsupport.Schema.drop(Schema.java:130)

[axelfontaine]

Fixed by @msallstr 's PR. Thanks!