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https://issues.apache.org/jira/browse/DRILL-4392?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jinfeng Ni resolved DRILL-4392.
-------------------------------
Resolution: Fixed
Assignee: Jinfeng Ni (was: Steven Phillips)
Fix Version/s: 1.6.0
Fixed in commit: 7d5a0a86e36932726abee49aa4c29ea9cbd576e9
> CTAS with partition writes an internal field into generated parquet files
> -------------------------------------------------------------------------
>
> Key: DRILL-4392
> URL: https://issues.apache.org/jira/browse/DRILL-4392
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Jinfeng Ni
> Assignee: Jinfeng Ni
> Priority: Blocker
> Fix For: 1.6.0
>
>
> On today's master branch:
> {code}
> select * from sys.version;
> +-----------------+-------------------------------------------+---------------------------------------------------------------------+----------------------------+-----------------+----------------------------+
> | version | commit_id |
> commit_message | commit_time
> | build_email | build_time |
> +-----------------+-------------------------------------------+---------------------------------------------------------------------+----------------------------+-----------------+----------------------------+
> | 1.5.0-SNAPSHOT | 9a3a5c4ff670a50a49f61f97dd838da59a12f976 | DRILL-4382:
> Remove dependency on drill-logical from vector package | 16.02.2016 @
> 11:58:48 PST | [email protected] | 16.02.2016 @ 17:40:44 PST |
> +-----------------+-------------------------------------------+---------------------------------------------------------------------+----------------------------+-----------------
> {code}
> Parquet table created by Drill's CTAS statement has one internal field
> "P_A_R_T_I_T_I_O_N_C_O_M_P_A_R_A_T_O_R". This additional field would not
> impact non-star query, but would cause incorrect result for star query.
> {code}
> use dfs.tmp;
> create table nation_ctas partition by (n_regionkey) as select * from
> cp.`tpch/nation.parquet`;
> select * from dfs.tmp.nation_ctas limit 6;
> +--------------+----------------+--------------+-----------------------------------------------------------------------------------------------------------------+----------------------------------------+
> | n_nationkey | n_name | n_regionkey |
> n_comment
> | P_A_R_T_I_T_I_O_N_C_O_M_P_A_R_A_T_O_R |
> +--------------+----------------+--------------+-----------------------------------------------------------------------------------------------------------------+----------------------------------------+
> | 5 | ETHIOPIA | 0 | ven packages wake quickly.
> regu
> | true |
> | 15 | MOROCCO | 0 | rns. blithely bold courts
> among the closely regular packages use furiously bold platelets?
> | false |
> | 14 | KENYA | 0 | pending excuses haggle
> furiously deposits. pending, express pinto beans wake fluffily past t
> | false |
> | 0 | ALGERIA | 0 | haggle. carefully final
> deposits detect slyly agai
> | false |
> | 16 | MOZAMBIQUE | 0 | s. ironic, unusual
> asymptotes wake blithely r
> | false |
> | 24 | UNITED STATES | 1 | y final packages. slow foxes
> cajole quickly. quickly silent platelets breach ironic accounts. unusual
> pinto be | true
> {code}
> This basically breaks all the parquet files created by Drill's CTAS with
> partition support.
> Also, it will also fail one of the Pre-commit functional test [1]
> [1]
> https://github.com/mapr/drill-test-framework/blob/master/framework/resources/Functional/ctas/ctas_auto_partition/general/data/drill3361.q
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