Commit Graph

3 Commits (6f5c72e6eac4cb49815c42ef5b9dcc0f4570c22e)

Author SHA1 Message Date
Jonathan A. Sternberg 42b68d915f Return a deprecated message when IF NOT EXISTS is used
The deprecated message is now attached to a new attribute returned with
the results. This message can then be read by clients to warn a user
about upcoming changes to the query engine.

The `influx` client has already been modified to read this message and
print it out for every format except CSV.

The first warning message is a deprecated message about removing `IF NOT
EXISTS` from `CREATE DATABASE`.

The message will also be printed to the server log.

Fixes #5707.
2016-04-15 09:17:59 -04:00
Jonathan A. Sternberg 37b63cedec Cleanup QueryExecutor and split statement execution code
The QueryExecutor had a lot of dead code made obsolete by the query
engine refactor that has now been removed. The TSDBStore interface has
also been cleaned up so we can have multiple implementations of this
(such as a local and remote version).

A StatementExecutor interface has been created for adding custom
functionality to the QueryExecutor that may not be available in the open
source version. The QueryExecutor delegate all statement execution to
the StatementExecutor and the QueryExecutor will only keep track of
housekeeping. Implementing additional queries is as simple as wrapping
the cluster.StatementExecutor struct or replacing it with something
completely different.

The PointsWriter in the QueryExecutor has been changed to a simple
interface that implements the one method needed by the query executor.
This is to allow different PointsWriter implementations to be used by
the QueryExecutor. It has also been moved into the StatementExecutor
instead.

The TSDBStore interface has now been modified to contain the code for
creating an IteratorCreator. This is so the underlying TSDBStore can
implement different ways of accessing the underlying shards rather than
always having to access each shard individually (such as batch
requests).

Remove the show servers handling. This isn't a valid command in the open
source version of InfluxDB anymore.

The QueryManager interface is now built into QueryExecutor and is no
longer necessary. The StatementExecutor and QueryExecutor split allows
task management to much more easily be built into QueryExecutor rather
than as a separate struct.
2016-04-04 13:27:17 -04:00
Ben Johnson e3b4b71c13 refactor query executor
This commit moves the `QueryExecutor` to the `cluster` package
and provides an interface to it inside the `influxql` package.
2016-02-17 15:13:56 -07:00