Vuk Ercegovac 646920810f IMPALA-1767 Adds predicate to test boolean values true, false, unknown. ...

Adds a new expression to represent the following boolean predicate:
<expr> IS [NOT] (TRUE | FALSE | UNKNOWN)
The expression is expanded in the parser to istrue/false for the checks
against true and false respectively and to isnull for the check against
unknown. Compared to the other approaches (rewrites, extended backend expr),
this change is the simplest. Main downside is that error messages are
in terms of the lowered expression.

Testing:
- fe: parser, tosql, analyze exprs
- e2e: query exprs

Change-Id: I9d5fba65ef6c87dfc55a25d2c45246f74eb48c40
Reviewed-on: http://gerrit.cloudera.org:8080/8122
Reviewed-by: Alex Behm <alex.behm@cloudera.com>
Tested-by: Impala Public Jenkins

2017-09-23 04:33:20 +00:00

..

src

IMPALA-1767 Adds predicate to test boolean values true, false, unknown.

2017-09-23 04:33:20 +00:00

.gitignore

Updates several .gitignore files.

2017-08-31 01:40:47 +00:00

CMakeLists.txt

IMPALA-5920: Remove admission control dependency on YARN RM jar

2017-09-19 21:32:07 +00:00

pom.xml

IMPALA-5920: Remove admission control dependency on YARN RM jar

2017-09-19 21:32:07 +00:00