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From "Victoria Markman (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-1924) Unexpected exception in TRUNC function when unsupported data type is passed in
Date Fri, 02 Jan 2015 23:59:34 GMT
Victoria Markman created DRILL-1924:
---------------------------------------

             Summary: Unexpected exception in TRUNC function when unsupported data type is
passed in
                 Key: DRILL-1924
                 URL: https://issues.apache.org/jira/browse/DRILL-1924
             Project: Apache Drill
          Issue Type: Bug
          Components: Functions - Drill
    Affects Versions: 0.8.0
            Reporter: Victoria Markman


t.json

{code}
{ "a1": 0, "b1": 0, "c1": "true",   "d1" : "2015-01-02"}
{ "a1": 0, "b1": 0, "c1": "false" , "d1" : "2015-01-03"}
{ "a1": 0, "b1": 0, "c1": "false" , "d1" : "2015-01-04"}
{ "a1": 1, "b1": 1, "c1": "true" ,  "d1" : "2015-01-05"}
{ "a1": 1, "b1": 1, "c1": "true" ,  "d1" : "2015-01-06"}
{code}

{code}
0: jdbc:drill:schema=dfs> select trunc(c1) from `t.json`;
Query failed: Query stopped., Failure while trying to materialize incoming schema.  Errors:
Error in expression at index -1.  Error: Missing function implementation: [castTINYINT(VARCHAR-OPTIONAL)].
 Full expression: --UNKNOWN EXPRESSION--.. [ 8fa0b28d-da4a-4c73-81df-823033dedc35 on atsqa4-133.qa.lab:31010
]
Error: exception while executing query: Failure while executing query. (state=,code=0)

0: jdbc:drill:schema=dfs> select trunc(cast(d1 as timestamp)) from `t.json`;
Query failed: Query stopped., Failure while trying to materialize incoming schema.  Errors:
Error in expression at index -1.  Error: Missing function implementation: [trunc(TIMESTAMP-OPTIONAL)].
 Full expression: --UNKNOWN EXPRESSION--.. [ 2a6783c4-e111-47dc-ba67-a767a111e3a9 on atsqa4-133.qa.lab:31010
]

Error: exception while executing query: Failure while executing query. (state=,code=0)
0: jdbc:drill:schema=dfs> select trunc(cast(d1 as date)) from `t.json`;
Query failed: Query stopped., Failure while trying to materialize incoming schema.  Errors:
Error in expression at index -1.  Error: Missing function implementation: [trunc(DATE-OPTIONAL)].
 Full expression: --UNKNOWN EXPRESSION--.. [ 65de17df-5c57-44e0-b5ea-653d0ad6afb9 on atsqa4-133.qa.lab:31010
]
Error: exception while executing query: Failure while executing query. (state=,code=0)

{code}

It also "works" on boolean data type, whatever it means ... 

{code}
0: jdbc:drill:schema=dfs> select cast(c1 as boolean) from `t.json`;
+------------+
|   EXPR$0   |
+------------+
| true       |
| false      |
| false      |
| true       |
| true       |
+------------+
5 rows selected (0.066 seconds)
{code}

TRUNC function is listed in external documentation as math function.
Please throw an error message when any other data type is passed in.




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