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impala/testdata/workloads/functional-query/queries/QueryTest
Michael Ho df2fc08d22 IMPALA-3206: Enable codegen for AVRO_DECIMAL
This change adds the missing switch statement in
CodegenReadScalar() for AVRO_DECIMAL so that we will
also codegen if an avro table contains AVRO_DECIMAL.
With this change, the following query improves by 37.5%,
going from 8s to 5s:

select count(distinct l_linenumber), avg(l_extendedprice), max(l_discount), min(l_tax) from tpch15_avro.lineitem;

This change also un-inlines BitUtil::ByteSwap() as the
third argument 'len' is not compilation constant for
all call sites.

Change-Id: I51adf0c1ba76e055f31ccb0034a0d23ea2afb30e
Reviewed-on: http://gerrit.cloudera.org:8080/3489
Reviewed-by: Michael Ho <kwho@cloudera.com>
Tested-by: Internal Jenkins
2016-07-14 19:04:44 +00:00
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