Add support for delete as we go.
Somehow we should preserve the first table block; order by does not copy the temp table
Use equal check to avoid performance overhead
Merge branch 'master' of github.com:VoltDB/voltdb into ENG-5964-temptable-performance
Merge branch 'master' into ENG-5964-temptable-performance
Renaming the delete as we go iterator for temptable. Clean up the assertation function.
Merge branch 'master' of github.com:VoltDB/voltdb into ENG-5964-temptable-performance
Merge pull request #1394 from VoltDB/ENG-5964-temptable-performance

Eng 5964 temptable performance