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17 Commits (9cc7b393c50415f147616e3a87ae26e03f62ca20)

Author SHA1 Message Date
beorn7 4e3abc6cbf Simply use `math.Mod(float64, float64)` after all 
This circumvents all the problems with int overflow, plus it is what was originally intended.
 2016-11-08 21:03:31 +01:00
beorn7 5cf5bb427a Check for int64 overflow when converting from float64 2016-11-05 00:48:32 +01:00
beorn7 07f1bdfe94 Fix MOD binop for scalars and vectors 
Previously, a floating point number that would round down to 0 would
cause a "division by zero" panic.
 2016-11-03 19:03:44 +01:00
Brian Brazil 3b89616d82 Allow on, ignoring, by and without wit empty laberls. 
This offers new semantics in allowing on() for matching
two single-element vectors with no known common labels.
Previosuly this was often done using on(dummy).

This also allows making it explict that you meant
to do an aggregation without labels via by().

Fixes #1597.
 2016-06-24 14:12:51 +01:00
royels 2fdc5717a3 promql: add power binary operation 2016-06-22 23:34:46 -04:00
Brian Brazil ef55fd6176 Add unittest for using a metric for thresholds with group_left. 2016-05-08 16:58:23 +01:00
Brian Brazil d991f0cf47 For many-to-one matches, always copy label from one side. 
This is a breaking change for everyone using the machine roles
labeling approach.
 2016-04-21 19:35:41 +01:00
Brian Brazil 768d09fd2a Change on+group_* to take copy from the one side. 
If the label doesn't exist on the one side, it's not copied.

All labels on the many inside are included, this is a breaking change
but likely low impact.
 2016-04-21 19:35:40 +01:00
Brian Brazil d1edfb25b3 Add support for OneToMany with IGNORING. 
The labels listed in the group_ modifier will be copied from the one
side to the many side. It will be valid to specify no labels.

This is intended to replace the existing ON/GROUP_* support.,
 2016-04-21 19:35:35 +01:00
Brian Brazil 1d08c4fef0 Add 'ignoring' as modifier for binops. 
Where 'on' uses the given labels to match,
'ignoring' uses all other labels to match.

group_left/right is not supported yet.
 2016-04-21 19:34:29 +01:00
Brian Brazil f5084ab1c5 Add tests for group_left/group_right 2016-04-21 16:52:53 +01:00
Tobias Schmidt 8cc86f25c0 Implement relative complement set operator "unless" 
The `unless` set operator can be used to return all vector elements from
the LHS which do not match the elements on the RHS. A use case is to
return all metrics for nodes which do not have a specific role:

    node_load1 unless on(instance) chef_role{role="app"}
 2016-04-04 01:29:44 -04:00
Tobias Schmidt 4c3dc25e35 Fix whitespace in promql test data 2016-04-02 18:25:26 -04:00
Brian Brazil 8788701ce7 Add test for incorrect behaviour 2016-03-18 12:07:40 +00:00
Brian Brazil 39d556f0d5 Move all the operator tests into one file 2016-03-18 12:02:44 +00:00
Brian Brazil b7ef0b45e8 Break aggregation tests out. Add missing tests. 2016-02-07 18:02:51 +00:00
Brian Brazil 89760dd77d Handle NaN for min/max. 
Similar to topk and sort, prefer not returning NaN
where possible.
 2016-01-06 12:41:40 +00:00