danny0405 commented on a change in pull request #1449: [CALCITE-3302] Implement
CLASSIFIER and LAST function for MATCH_RECOG…
URL: https://github.com/apache/calcite/pull/1449#discussion_r323084713
##########
File path:
core/src/main/java/org/apache/calcite/adapter/enumerable/EnumerableMatch.java
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@@ -381,6 +445,48 @@ public int getFuture() {
}
}
+ /**
+ * A special Getter that is able to return a field from a list of objects.
+ */
+ static class PassedRowsInputGetter implements RexToLixTranslator.InputGetter
{
+ private Expression index;
+ private final ParameterExpression row;
+ private final ParameterExpression passedRows;
+ private final Function<Expression, RexToLixTranslator.InputGetter>
generator;
+ private final PhysType physType;
+
+ PassedRowsInputGetter(ParameterExpression row, ParameterExpression
passedRows,
+ PhysType physType) {
Review comment:
Fix the indent.
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