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31dfa3e28c
Prior to this patch, Impala shell --var could not accept values from
other variables unlike the one in Impala interactive shell with the SET
command. This patch refactors the logic of variable substitution to
use the same logic in both interactive and command line shells.
Example:
$ impala-shell.sh \
--var="msg1=1" \
--var="msg2=\${var:msg1}2" \
--var="msg3=\${var:msg1}\${var:msg2}"
[localhost:21000] default> select ${var:msg3};
Query: select 112
+-----+
| 112 |
+-----+
| 112 |
+-----+
Testing:
- Added a new shell test
- Ran all shell tests
Change-Id: Ib5b9fda329c45f2e5682f3cbc76d29ceca2e226a
Reviewed-on: http://gerrit.cloudera.org:8080/11623
Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>