Branch: refs/heads/HWKMETRICS-523_2 Home: https://github.com/hawkular/hawkular-metrics Commit: 933ec5c33bddb5919ea8461f66a227625bf20920 https://github.com/hawkular/hawkular-metrics/commit/933ec5c33bddb5919ea84... Author: Stefan Negrea <snegrea(a)redhat.com&gt; Date: 2017-01-24 (Tue, 24 Jan 2017) Changed paths: M core/metrics-core-service/src/main/antlr4/org/hawkular/metrics/core/service/tags/parser/TagQuery.g4 M core/metrics-core-service/src/main/java/org/hawkular/metrics/core/service/tags/ExpressionTagQueryParser.java M core/metrics-core-service/src/main/java/org/hawkular/metrics/core/service/tags/parser/TagQueryBaseListener.java M core/metrics-core-service/src/main/java/org/hawkular/metrics/core/service/tags/parser/TagQueryBaseVisitor.java M core/metrics-core-service/src/main/java/org/hawkular/metrics/core/service/tags/parser/TagQueryListener.java M core/metrics-core-service/src/main/java/org/hawkular/metrics/core/service/tags/parser/TagQueryParser.java M core/metrics-core-service/src/main/java/org/hawkular/metrics/core/service/tags/parser/TagQueryVisitor.java A core/metrics-core-service/src/main/java/org/hawkular/metrics/core/service/transformers/MetricIdFromMetricIndexRowTransformer.java M core/metrics-core-service/src/test/java/org/hawkular/metrics/core/service/metrics/ExpressionTagQueryITest.java Log Message: ----------- [HWKMETRICS-523] Add tag exists and not exists expression syntax and resolution. Also, avoid complex set operations by using just the distinct operator on the observable set.