Github user elilevine commented on a diff in the pull request: https://github.com/apache/phoenix/pull/21#discussion_r18074893 --- Diff: phoenix-core/src/main/java/org/apache/phoenix/coprocessor/BaseScannerRegionObserver.java --- @@ -61,6 +61,11 @@ public static final String EXPECTED_UPPER_REGION_KEY = "_ExpectedUpperRegionKey"; public static final String REVERSE_SCAN = "_ReverseScan"; public static final String ANALYZE_TABLE = "_ANALYZETABLE"; + /** + * Attribute name used to pass custom annotations in Scans and Mutations (later). Custom annotations + * are used to augment log lines emitted by Phoenix. See https://issues.apache.org/jira/browse/PHOENIX-1198. + */ + public static final String CUSTOM_ANNOTATIONS = "_Annot"; --- End diff -- New attribute for Scans to pass custom annotations to coprocessors.
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