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From "Jason Altekruse (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-1255) Allow change from integer to double type and vice versa in JSON reader
Date Tue, 05 Aug 2014 21:21:11 GMT

     [ https://issues.apache.org/jira/browse/DRILL-1255?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jason Altekruse updated DRILL-1255:
-----------------------------------

    Description: Currently the JSON reader for drill will fail if there is any schema change
in a file. For the time being, this is expected for a significant change in type, such as
a change between types without clear implicit casting rules, such as a change between any
combination of string, bool, or numeric types. We however do want to support changing from
an integer to a double type (any number with a decimal point is read as a double value) or
vice versa should be handled. This is also related to mixed integer and double types in arrays,
which should also be supported.  (was: Currently the JSON reader for drill will fail if there
is any schema change in a file. For the time being, this is expected for a significant change
in type, such as a change between types without clear implicit casting rules, such as a change
between any combination of string, bool, or numeric types. We however do want to support changing
from an integer to a double type (any number with a decimal point is read as a double value)
or vice versa should be handled.)

> Allow change from integer to double type and vice versa in JSON reader
> ----------------------------------------------------------------------
>
>                 Key: DRILL-1255
>                 URL: https://issues.apache.org/jira/browse/DRILL-1255
>             Project: Apache Drill
>          Issue Type: Improvement
>            Reporter: Jason Altekruse
>
> Currently the JSON reader for drill will fail if there is any schema change in a file.
For the time being, this is expected for a significant change in type, such as a change between
types without clear implicit casting rules, such as a change between any combination of string,
bool, or numeric types. We however do want to support changing from an integer to a double
type (any number with a decimal point is read as a double value) or vice versa should be handled.
This is also related to mixed integer and double types in arrays, which should also be supported.



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