* Rename getStats() to prepare()
* Adds TRowBatch.num_rows to indicate number of rows when no cols are
materialized
* Changes api and sample poms to produce source jars
Change-Id: I02dcc89e27716978708386cfc3f7940ee5dbc023
Reviewed-on: http://gerrit.ent.cloudera.com:8080/2406
Reviewed-by: Matthew Jacobs <mj@cloudera.com>
Tested-by: jenkins
(cherry picked from commit 2d7fcba8b7442b54a388f8b994d0cfa08940bbd7)
Reviewed-on: http://gerrit.ent.cloudera.com:8080/2434
A few changes to the external data source thrift types:
* Change RowBatch to return entire columns. Adds Data.TColumnData to
represent an entire column.
* Makes all fields in ExternalDataSource (except for status fields on
the result structures) optional in case fields become deprecated in
the future.
* Adds a limit parameter to the TOpenParams structure in case the
data source needs to apply the limit itself.
Change-Id: I62db68bfb64d2190dfdd0c84be5925ad5db031ef
Reviewed-on: http://gerrit.ent.cloudera.com:8080/2345
Reviewed-by: Nong Li <nong@cloudera.com>
Tested-by: jenkins
(cherry picked from commit faf220d628359be1368f898493900fc2e2913c53)
Reviewed-on: http://gerrit.ent.cloudera.com:8080/2385
Reviewed-by: Matthew Jacobs <mj@cloudera.com>
Adds the thrift structures for the public external data source API
and a new maven project containing the Java ExternalDataSource
interface and the generated Java thrift classes.
The ExternalDataSource.thrift structures can evolve in a backward
compatible way. The ExternalDataSource Java interface will always
contain a version number in the namespace (e.g.
com.cloudera.impala.extdatasource.v1 for V1) so we can potentially
make breaking changes to the interface in the future but still
support older versions.
A trivial implementation of the ExternalDataSource API is also
added for testing purposes.
TODO: Make the sample data source implementation realistic.
Change-Id: I827d6420a87ed7a2bce34e050362ca98ddc5dbcc
Reviewed-on: http://gerrit.ent.cloudera.com:8080/2241
Reviewed-by: Matthew Jacobs <mj@cloudera.com>
Tested-by: jenkins
(cherry picked from commit f29814e9ede9d4c889f2648606fcf511feeb47ae)
Reviewed-on: http://gerrit.ent.cloudera.com:8080/2313
