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Yingyi Bu <yingyi@couchbase.com>
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on 23 May 16
ASTERIXDB-1228: Add MISSING into the data model.
1. MISSING repsents the value of a non-existing field in a record
or an out-of-bound ind… Show more
ASTERIXDB-1228: Add MISSING into the data model.

1. MISSING repsents the value of a non-existing field in a record

  or an out-of-bound index access of a collection;

2. NULL represents that the value of an optional field in a record

  is unknown or the value of existing collection entry is unknown.

3. Unit tests for all missing/null-in-missing/null-out scalar functions.

Change-Id: Ia49ed8474bfc5d6604231819065117468c5b0897

Reviewed-on: https://asterix-gerrit.ics.uci.edu/846

Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>

Reviewed-by: Till Westmann <tillw@apache.org>

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