Hubert Zhang created HAWQ-862:
---------------------------------
Summary: Make user defined function get_ao_distribution work.
Key: HAWQ-862
URL: https://issues.apache.org/jira/browse/HAWQ-862
Project: Apache HAWQ
Issue Type: Bug
Components: Core
Reporter: Hubert Zhang
Assignee: Lei Chang
In Hawq we had a functon that could do a fast row-count on AO tables based on
querying the catalog versus issuing 'select count(*)' SQL. Was a lot faster
for larger tables. I found the script and tried using it with HAWQ but one of
the underlying Postgres functions that gets called (get_ao_distribution) bombs
since it doesn't seem to be able to find the table files when they are stored
in HDFS.
gpadmin=# select sum(tupcount) from get_ao_distribution('public.foo');
ERROR: could not open relation 1663/24731/24740: No such file or directory
(seg0 localhost.localdomain:40000 pid=82964)
DETAIL: Database directory "base/24731" does not exist
CONTEXT: SQL statement "select gp_segment_id, sum(tupcount) from
gp_dist_random('pg_aoseg.pg_aoseg_24738') group by (gp_segment_id)"
gpadmin=#
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
