Pranav Lodha has uploaded this change for review. (
http://gerrit.cloudera.org:8080/23066
Change subject: IMPALA-14005: Support for quoted reserved words column names
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IMPALA-14005: Support for quoted reserved words column names
This change updates the way column names are
projected in the SQL query generated for JDBC
external tables. Instead of relying on optional
mapping or default behavior, all column names are now
explicitly quoted using appropriate quote characters.
Column names are now wrapped with quote characters
based on the JDBC driver being used:
1. Backticks (`) for Hive, Impala and MySQL
2. Double quotes (") for all other databases
This helps in the support for case-sensitive or
reserved column names.
Change-Id: I5da5bc7ea5df8f094b7e2877a0ebf35662f93805
---
M fe/src/main/java/org/apache/impala/extdatasource/jdbc/JdbcDataSource.java
M testdata/bin/create-ext-data-source-table.sql
M testdata/bin/load-ext-data-sources.sh
M testdata/bin/setup-mysql-env.sh
M
testdata/workloads/functional-query/queries/QueryTest/hive-jdbc-mysql-tables.test
M
testdata/workloads/functional-query/queries/QueryTest/hive-jdbc-postgres-tables.test
M tests/custom_cluster/test_ext_data_sources.py
7 files changed, 473 insertions(+), 8 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/66/23066/4
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I5da5bc7ea5df8f094b7e2877a0ebf35662f93805
Gerrit-Change-Number: 23066
Gerrit-PatchSet: 4
Gerrit-Owner: Pranav Lodha <[email protected]>
Gerrit-Reviewer: Peter Rozsa <[email protected]>
Gerrit-Reviewer: Pranav Lodha <[email protected]>
Gerrit-Reviewer: Wenzhe Zhou <[email protected]>
