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https://issues.apache.org/jira/browse/PHOENIX-514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14278314#comment-14278314
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ASF GitHub Bot commented on PHOENIX-514:
----------------------------------------
Github user JamesRTaylor commented on a diff in the pull request:
https://github.com/apache/phoenix/pull/34#discussion_r22992519
--- Diff:
phoenix-core/src/main/java/org/apache/phoenix/compile/FromCompiler.java ---
@@ -184,7 +184,7 @@ public static ColumnResolver
getResolverForCompiledDerivedTable(PhoenixConnectio
Expression sourceExpression =
projector.getColumnProjector(column.getPosition()).getExpression();
PColumnImpl projectedColumn = new
PColumnImpl(column.getName(), column.getFamilyName(),
sourceExpression.getDataType(),
sourceExpression.getMaxLength(), sourceExpression.getScale(),
sourceExpression.isNullable(),
- column.getPosition(), sourceExpression.getSortOrder(),
column.getArraySize(), column.getViewConstant(), column.isViewReferenced());
+ column.getPosition(), sourceExpression.getSortOrder(),
column.getArraySize(), column.getViewConstant(), column.isViewReferenced(),
null);
--- End diff --
This is like a copy constructor, so instead of null for the new arg, you
should likely use column.getExpressionStr().
> 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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