Previously, we tried to maintain as much of the scale as possible but
this leads to very easy overflow cases since it requires dropping all
digits before the decimal point. This patch picks a midway point.
I did a little bit of research this is close to what SQL server does
(the reference is linked in the function I changed).
Change-Id: I2100beead82559ef7b017c5f335acd532076c0d4
Reviewed-on: http://gerrit.ent.cloudera.com:8080/3150
Reviewed-by: Nong Li <nong@cloudera.com>
Tested-by: jenkins
This patch converts the tpcds schemas to use decimal instead of float/double. Currently,
Impala can only r/w decimal in text, therefore, the tables are constrained to text. The
schemas were obtained from the official tpc spec:
http://www.tpc.org/tpcds/spec/tpcds_1.1.0.pdf
Change-Id: I1ef0113dcb48bad52af75ee93b47b08adf9e1a69
Reviewed-on: http://gerrit.ent.cloudera.com:8080/2403
Reviewed-by: Ishaan Joshi <ishaan@cloudera.com>
Tested-by: jenkins
This change modifies that behavior of NULL ordering such that nulls always
compare greater than other values, but "nulls first" or "nulls last" can be used
to explicitly specify if nulls should be sorted first or last regardless of the
asc/desc.
Change-Id: I92feda1e7f42249de4009afd39f8395a0a32a2f8
Reviewed-on: http://gerrit.ent.cloudera.com:8080/812
Reviewed-by: Marcel Kornacker <marcel@cloudera.com>
Reviewed-by: Matthew Jacobs <mj@cloudera.com>
Tested-by: Matthew Jacobs <mj@cloudera.com>
I tried to investigate the jenkins issue where we weren't returning any rows.
I setup the cluster on that box manually and noticed there weren't any results
because the store_sales table was empty. Refresh did not fix. This looks like
a data loading issue. Adding this test would make discovering this like this
much easier.
Change-Id: I8ccddd43892b279d506371b9de717629815c6a08
Reviewed-on: http://gerrit.ent.cloudera.com:8080/260
Reviewed-by: Nong Li <nong@cloudera.com>
Tested-by: Nong Li <nong@cloudera.com>
