Previously only the standard max slice was available. This commit
changes it so that the inverse max can be retrieved separately
through the `DB` and `Frame` types as well as through the
`HTTP` API and `Client`.
Previously, multiple frames with different prefixes were used to separate
different data layouts. This included separating standard row/column
layouts from inverted column/row layouts as well as storing aggregate
information for timestamp data.
Unfortunately, this caused frame meta data to be copied between multiple
frames and it made it difficult to keep these frames in sync.
This commit separates these different physical layouts into `Views`.
A `Frame` now has one or more views which represent each layout.
Fragments have been moved from under the `Frame` to be contained
within the `View`.
There are two primary views:
- `standard`
- `inverse`
If a frame has a time quantum, then views are generated for these
each of the standard/inverse views. For example a time quantum
of `YMDH` for the date `2000-01-02T00:00:00Z` would create the
following views:
- `standard_2000`
- `inverse_2000`
- `standard_200001`
- `inverse_200001`
- `standard_20000102`
- `inverse_20000102`
From the user's perspective, nothing should change in PQL. Different
PQL statements will handle the appropriate view automatically. For
example, `Bitmap()` and `Profile()` will fetch using the `standard`
view or the `inverse` view, respectively. The `Range()` statement
will lookup the appropriate time-based views automatically.
had to work around a bunch of viper nonsense with handling string slices
changed the validator.Check to use reflect.DeepEqual
fixed a bug where env vars need to be reset between tests
had to change the structure of pilosa.config to enable the passing of hosts as a
slice of strings (it was a slice of structs which each just contained the string
host.) so we lose some generality, but we weren't using it anyway.
1. fixed a couple bugs with config file reading.
2. made cmd.Serve a global variable so tests could inspect it.
3. added table style testing for pilosa server
4. added the ability to stop server programmatically which also causes the cobra
command running it to return.
Now that the default data dir is defined by the flag, we don't need to set it
explicitly if it isn't set. We also stop reading the config file explicitly in
server.go since viper will read it - we do need to define all the config options
though before the config file will work properly.
