influxdb/tsdb/executor.go

package tsdb

import "github.com/influxdb/influxdb/models"

// Executor is an interface for a query executor.
type Executor interface {
	Execute(closing <-chan struct{}) <-chan *models.Row
}
Refactor query engine for distributed query support With this change, the query engine code gathers information about shards and tagsets by working with individual shards, collating the information, and returning that to the client. It does not assume that any particular shard is local, and accesses all shards through abstracted Mappers, of which there are two types -- a Mapper type for Raw queries and a second type for Aggregate queries. There are corresponding Executors for each type of Mapper, but both types of Executors share the same interface. 2015-07-06 12:31:52 +00:00			`package tsdb`

refactor tsdb query engine This commit refactors the tsdb query engine to use separate aggregate and raw execution paths, encapsulates cursor functionality, and removes the TagSetCursor from the aggregate path. By removing the TagSetCursor, we can pass sets of unordered values to the map functions and bypass the `container/heap` entirely. 2015-10-05 17:55:20 +00:00			`import "github.com/influxdb/influxdb/models"`
Refactor query engine for distributed query support With this change, the query engine code gathers information about shards and tagsets by working with individual shards, collating the information, and returning that to the client. It does not assume that any particular shard is local, and accesses all shards through abstracted Mappers, of which there are two types -- a Mapper type for Raw queries and a second type for Aggregate queries. There are corresponding Executors for each type of Mapper, but both types of Executors share the same interface. 2015-07-06 12:31:52 +00:00
convert SHOW MEASUREMENTS to a distributed query 2015-08-24 02:55:48 +00:00			`// Executor is an interface for a query executor.`
			`type Executor interface {`
implement close notifier and timeout on executors 2015-11-23 22:40:08 +00:00			`Execute(closing <-chan struct{}) <-chan *models.Row`
convert SHOW MEASUREMENTS to a distributed query 2015-08-24 02:55:48 +00:00			`}`