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Karsten Jeschkies 3d5a3936d1 Support limits in multi-tenant queries. (#5626) ... **What this PR does / why we need it**: This changes adds support for the the following limits in multi-tenant queries: - `MaxQuerySeries` - `QuerySplitDuration` - `MaxEntriesLimitPerQuery` - `MinShardingLookback` - `MaxQueryLength` - `MaxQueryParallelism` - `MaxQueriersPerUser` - `MaxCacheFreshness` It always uses the more restricted limit. That means the smallest `MaxQuerySeries` but biggest `QuerySplitDuration`. The split duration is special. Zero means disabled. Also, the global default resolver is the multi tenant resolver when multi-tenant queries are enabled. This will result HTTP 400 errors in case the user sends multiple tenants to endpoints that do not support it. **Which issue(s) this PR fixes**: **Special notes for your reviewer**: **Checklist** - [ ] Documentation added - [x] Tests updated - [x] Add an entry in the `CHANGELOG.md` about the changes. Co-authored-by: JordanRushing <rushing.jordan@gmail.com>		4 years ago
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log	Refactor LogQL syntax into its own package (#5539)	4 years ago
syntax	Refactor LogQL syntax into its own package (#5539)	4 years ago
vector	Refactor LogQL syntax into its own package (#5539)	4 years ago
downstream.go	Refactor LogQL syntax into its own package (#5539)	4 years ago
downstream_test.go	Refactor sharding engine to downstream engine (#5546)	4 years ago
engine.go	Support limits in multi-tenant queries. (#5626)	4 years ago
engine_test.go	Refactor LogQL syntax into its own package (#5539)	4 years ago
evaluator.go	Refactor LogQL syntax into its own package (#5539)	4 years ago
evaluator_test.go	Refactor LogQL syntax into its own package (#5539)	4 years ago
limits.go	Limit series for metric queries. (#2903)	5 years ago
matchers.go	Refactor LogQL syntax into its own package (#5539)	4 years ago
matchers_test.go	Refactor LogQL syntax into its own package (#5539)	4 years ago
matrix.go	Do not insert point when missing when sharding (#5444)	4 years ago
matrix_test.go	Do not insert point when missing when sharding (#5444)	4 years ago
metrics.go	Refactor LogQL syntax into its own package (#5539)	4 years ago
metrics_test.go	Add the total number of subqueries to query statistics (#5397)	4 years ago
optimize.go	Refactor LogQL syntax into its own package (#5539)	4 years ago
optimize_test.go	Refactor LogQL syntax into its own package (#5539)	4 years ago
range_vector.go	Refactor LogQL syntax into its own package (#5539)	4 years ago
range_vector_test.go	Refactor LogQL syntax into its own package (#5539)	4 years ago
shardmapper.go	Refactor LogQL syntax into its own package (#5539)	4 years ago
shardmapper_test.go	Refactor LogQL syntax into its own package (#5539)	4 years ago
step_evaluator.go	fixes a badly referenced variable name in StepEvaluator code (#3996)	5 years ago
test_utils.go	Refactor sharding engine to downstream engine (#5546)	4 years ago
vector.go	LogQL: Vector and Range Vector Aggregation.	6 years ago