add IT test for doubles in sql
Merge pull request #1468 from marcel-blonk/PLFM-2580

add IT test for doubles in sql
delete table artifact when TableEntity gets deleted
Merge pull request #1470 from marcel-blonk/PLFM-2930

delete table artifact when TableEntity gets deleted
forgotten files
Merge pull request #1471 from marcel-blonk/PLFM-2930

forgotten files
new version
Merge pull request #1472 from john-hill/new-schema-to-pojo-version

new version