Hi Amit,   Your first question has already been discussed in this thread:  There's a bit of a story there. When we started preparing the 5.10 CDH release, the Apache 2.8 Impala release was not ready, so we had to call it "Impala 2.7" in the version number. Impala 2.8 was officially released after we finished putting together the CDH5.10 release - too late to bump the version in all places.   CDH5.10 Impala is almost exactly the same as 2.8, plus or minus a few patches, so in most of the announcements we've just called it 2.8.   You can find a full list of commits in CDH5.10.0 here: https://github.com/cloudera/Impala/commits/cdh5-2.7.0_5.10.0 The full list of commits in Impala 2.8 are here: https://github.com/apache/incubator-impala/commits/branch-2.8.0   To your second question: Impala does indeed not support the DELETE command for non-Kudu tables. You can use the TRUNCATE command to completely delete all data in a table.   Cheers, Lars   ... View more

I just saw this thread after commenting on the Jira. Would "conv()" be a suitable workaround here?   select conv('100010', 2, 10); +-----------------------+ | conv('100010', 2, 10) | +-----------------------+ | 34 | +-----------------------+ Fetched 1 row(s) in 0.24s   More information on conv() can be found in the Impala documentation.    Edit: To make things complete, the Jira is IMPALA-4968. ... View more