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https://issues.apache.org/jira/browse/PHOENIX-514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14295787#comment-14295787
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ASF GitHub Bot commented on PHOENIX-514:
----------------------------------------
Github user twdsilva commented on a diff in the pull request:
https://github.com/apache/phoenix/pull/34#discussion_r23720074
--- Diff:
phoenix-core/src/main/java/org/apache/phoenix/expression/Expression.java ---
@@ -88,4 +88,9 @@
* @return
*/
boolean requiresFinalEvaluation();
+
+ /**
+ * @return the estimated size in bytes of the expression when
serialized
+ */
+ int getEstimatedByteSize();
--- End diff --
The only place where this is used is in IndexMaintainer serialize, if we
are moving to Protobufs then this change is not worth it, I will remove it.
> Support functional indexes
> --------------------------
>
> Key: PHOENIX-514
> URL: https://issues.apache.org/jira/browse/PHOENIX-514
> Project: Phoenix
> Issue Type: Task
> Reporter: James Taylor
> Assignee: Thomas D'Silva
> Labels: enhancement
>
> Instead of only defining the set of columns from the data table that make up
> an index, you should be able to use expressions. For example:
> CREATE INDEX upper_last_name_idx ON person (UPPER(last_name))
> Then in queries that use UPPER(last_name), we can replace them with column
> references to the index table.
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