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[expand - 2 more] - Re: Review Request 24758: Drill-1283 - JSON project pushdown - Drill - [mail # dev]
...We do actually need this guard here for the case where we are "reading" only coluumns that do not exist in the document. We cannot allocate the vectors in advance, because we do not know the...
   Author: Jason Altekruse, 2014-08-22, 22:59
[expand - 1 more] - Re: Review Request 24759: Drill-982 Return null for non-existent columns in parquet reader - Drill - [mail # dev]
...Yes, they are initialized to false in JAVAhttp://stackoverflow.com/a/12229524- JasonThis is an automatically generated e-mail. To reply, visit:https://reviews.apache.org/r/24759/#review50957...
   Author: Jason Altekruse, 2014-08-19, 06:42
[expand - 1 more] - Re: Using Apache Drill - Sample Data and Sample Queries - Examples - Drill - [mail # user]
...It works, thanks for sharing!On Thu, Aug 14, 2014 at 2:21 PM, Jim Scott  wrote: ...
   Author: Jason Altekruse, 2014-08-14, 21:26
Handling numeric types in JSON - Drill - [mail # dev]
...Hello Drillers,I have been taking a look at our open JIRA's for our JSON reader and tryingto figure out the best way to improve the usability of Drill without addingtoo much complexity to th...
   Author: Jason Altekruse, 2014-08-07, 19:31
[DRILL-1264] Fix operators to work with embedded types - Drill - [issue]
...Currently there are several operators such as sort, group by and join that assume a constant schema. One example of a bug introduced by this assumption is the current functionality of breaki...
http://issues.apache.org/jira/browse/DRILL-1264    Author: Jason Altekruse, 2014-08-06, 01:11
[DRILL-1263] Extend complex reader/writer to handle Embedded Types - Drill - [issue]
...Once we add Embedded vectors to allow schema changes within a batch, we will have to update the readers and writers for formats that allow schema changes to handle these cases....
http://issues.apache.org/jira/browse/DRILL-1263    Author: Jason Altekruse, 2014-08-06, 00:48
[DRILL-1262] Promotion of vectors from standard to embedded vectors - Drill - [issue]
...For cases where the schema changes frequently, such as in the json reader, we will want to allow the operators to assume regular vectors can be used until we hit a schema change, at which ti...
http://issues.apache.org/jira/browse/DRILL-1262    Author: Jason Altekruse, 2014-08-06, 00:47
[DRILL-1261] Support in functions for heterogeneous and embedded types - Drill - [issue]
...To handle dynamic schema within a batch we will need to allow the functions defined in drill to adjust their computation method for different types without recompiling the  generated co...
http://issues.apache.org/jira/browse/DRILL-1261    Author: Jason Altekruse, 2014-08-06, 00:43
[DRILL-1260] Embedded Type Vector - Drill - [issue]
...Value vectors currently have a single type for all of the values they contain. This enforces that the schema within a single record batch be constant, thus we cannot support changing the typ...
http://issues.apache.org/jira/browse/DRILL-1260    Author: Jason Altekruse, 2014-08-06, 00:36
[DRILL-1257] Handle schema mutations within a batch - Drill - [issue]
...Drill is intended to provide flexibility for a wide variety of querying use cases, including those against file formats with changing schema such as JSON. Currently Drill does not have an ef...
http://issues.apache.org/jira/browse/DRILL-1257    Author: Jason Altekruse, 2014-08-05, 23:49
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