The Cursor returned will be capable of scanning rows into a structure.
It replaces part of the function for why the Emitter existed. The
Emitter would both join the resulting rows and then transform the values
into a models.Row so it could be returned to the results.
In the future, we will be able to use the Cursor directly to write out
values which should be more memory efficient.
* Introduces EXPLAIN ANALYZE command, which
produces a detailed tree of operations used to
execute the query.
introduce context.Context to APIs
metrics package
* create groups of named measurements
* safe for concurrent access
tracing package
EXPLAIN ANALYZE implementation for OSS
Serialize EXPLAIN ANALYZE traces from remote nodes
use context.Background for tests
group with other stdlib packages
additional documentation and remove unused API
use influxdb/pkg/testing/assert
remove testify reference
It prints the statistics of each iterator that will access the storage
engine. For each access of the storage engine, it will print the number
of shards that will potentially be accessed, the number of files that
may be accessed, the number of series that will be created, the number
of blocks, and the size of those blocks.
Jonathan A. Sternberg
Stuart Carnie
Jonathan A. Sternberg