Santiago M. Mola created SPARK-6740:
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Summary: SQL operator and condition precedence is not honoured
Key: SPARK-6740
URL: https://issues.apache.org/jira/browse/SPARK-6740
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 1.3.0
Reporter: Santiago M. Mola
The following query from the SQL Logic Test suite fails to parse:
SELECT DISTINCT * FROM t1 AS cor0 WHERE NOT ( - _2 + - 39 ) IS NULL
while the following (equivalent) does parse correctly:
SELECT DISTINCT * FROM t1 AS cor0 WHERE NOT (( - _2 + - 39 ) IS NULL)
SQLite, MySQL and Oracle (and probably most SQL implementations) define IS with
higher precedence than NOT, so the first query is valid and well-defined.
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