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From "Impala Public Jenkins (Code Review)" <>
Subject [Impala-ASF-CR] IMPALA-5994: Lower case struct-field names
Date Sat, 30 Sep 2017 01:13:19 GMT
Impala Public Jenkins has submitted this change and it was merged. (

Change subject: IMPALA-5994: Lower case struct-field names

IMPALA-5994: Lower case struct-field names

Impala tries to always store column names in lower case. As part of a
cleanup of issues related to upper case Kudu column names, a check was
added in Analyzer to enforce this.

The check fails when doing star expansion on a struct to select all
fields in the case where a table was created in Hive with upper case
letters in a struct field name. This happens because Hive does not
covert struct field names to all lower case in HMS.

The solution is to force StructField names to lower case.

- Added a test in
- Fixed FE test that expected struct field to be output in upper case.

Change-Id: Iacd9714ac2301a55ee8b64f0102f6f156fb0370e
Reviewed-by: Thomas Tauber-Marshall <>
Tested-by: Impala Public Jenkins
M fe/src/main/java/org/apache/impala/catalog/
M fe/src/test/java/org/apache/impala/analysis/
M tests/query_test/
3 files changed, 19 insertions(+), 2 deletions(-)

  Thomas Tauber-Marshall: Looks good to me, approved
  Impala Public Jenkins: Verified

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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: Iacd9714ac2301a55ee8b64f0102f6f156fb0370e
Gerrit-Change-Number: 8169
Gerrit-PatchSet: 5
Gerrit-Owner: Thomas Tauber-Marshall <>
Gerrit-Reviewer: Alex Behm <>
Gerrit-Reviewer: Impala Public Jenkins
Gerrit-Reviewer: Lars Volker <>
Gerrit-Reviewer: Thomas Tauber-Marshall <>

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