KazydubB commented on a change in pull request #1829: DRILL-7096: Develop
vector for canonical Map<K,V>
URL: https://github.com/apache/drill/pull/1829#discussion_r308254638
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet2/DrillParquetReader.java
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@@ -175,6 +183,38 @@ private static MessageType getProjection(MessageType
schema,
return projection;
}
+ /**
+ * Get type from the supplied {@code type} corresponding to given {@code
segment}.
+ * @param type type to extract field corresponding to segment
+ * @param segment segment which type will be returned
+ * @return type corresponding to the {@code segment} or {@code null} if
there is no field found in {@code type}.
+ */
+ private static Type getType(Type type, PathSegment segment) {
+ Type result = null;
+ if (type != null && !type.isPrimitive()) {
+ GroupType groupType = type.asGroupType();
+ if (segment.isNamed()) {
+ boolean found = false;
+ String fieldName = segment.getNameSegment().getPath();
+ for (Type field : groupType.getFields()) {
+ if (field.getName().equalsIgnoreCase(fieldName)) {
+ fieldName = field.getName();
+ found = true;
+ break;
+ }
+ }
+ result = found ? groupType.getType(fieldName) : null;
+ } else {
+ // the segment is array index
+ if (groupType.getOriginalType() == OriginalType.LIST) {
Review comment:
It was made intentionally, but I see your point. Will combine.
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