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https://issues.apache.org/jira/browse/CALCITE-2091?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Nishant Bangarwa reassigned CALCITE-2091:
-----------------------------------------

    Assignee: Nishant Bangarwa  (was: Julian Hyde)

> DruidAdapterIT testFilterTimestamp does not test translating of extract fn to 
> interval
> --------------------------------------------------------------------------------------
>
>                 Key: CALCITE-2091
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2091
>             Project: Calcite
>          Issue Type: Improvement
>            Reporter: Nishant Bangarwa
>            Assignee: Nishant Bangarwa
>
> this test was added to verify that the extract function is transformed to a 
> date range on timestamp column. But in this it does not seem to be pushing 
> extract to interval. This task is to check the root cause and fix this. I 
> guess this is possibly an issue with cost computation not accounting for 
> interval being queried. 
> {code} 
> /** Tests that conditions applied to time units extracted via the EXTRACT
>    * function become ranges on the timestamp column
>    *
>    * <p>Test case for
>    * <a 
> href="https://issues.apache.org/jira/browse/CALCITE-1334";>[CALCITE-1334]
>    * Convert predicates on EXTRACT function calls into date ranges</a>. */
>   @Test public void testFilterTimestamp() {
>     String sql = "select count(*) as c\n"
>         + "from \"foodmart\"\n"
>         + "where extract(year from \"timestamp\") = 1997\n"
>         + "and extract(month from \"timestamp\") in (4, 6)\n";
>     final String explain = "DruidQuery(table=[[foodmart, foodmart]], "
>         + "intervals=[[1900-01-09T00:00:00.000Z/2992-01-10T00:00:00.000Z]], "
>         + "filter=[AND(=(EXTRACT(FLAG(YEAR), $0), 1997), 
> OR(=(EXTRACT(FLAG(MONTH), $0), 4), "
>         + "=(EXTRACT(FLAG(MONTH), $0), 6)))], groups=[{}], aggs=[[COUNT()]])";
>     sql(sql)
>         .explainContains(explain)
>         .returnsUnordered("C=13500");
>   }
> {code} 



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