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https://issues.apache.org/jira/browse/ARROW-1652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16234359#comment-16234359
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ASF GitHub Bot commented on ARROW-1652:
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TheNeuralBit commented on a change in pull request #1273: ARROW-1652: [JS]
housekeeping, vector cleanup
URL: https://github.com/apache/arrow/pull/1273#discussion_r148291752
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File path: js/src/types/vector/traits.ts
##########
@@ -0,0 +1,69 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+import { BoolVector } from './bool';
+import { Vector, Column } from '../types';
+import * as Schema_ from '../../format/Schema_generated';
+import * as Message_ from '../../format/Message_generated';
+import Type = Schema_.org.apache.arrow.flatbuf.Type;
+import Field = Schema_.org.apache.arrow.flatbuf.Field;
+import FieldNode = Message_.org.apache.arrow.flatbuf.FieldNode;
+
+type Ctor<TArgv> = new (argv: TArgv) => Vector;
+
+export const nullable = <T extends Vector, TArgv>(superclass: new (argv:
TArgv) => T) =>
Review comment:
Maybe these should be `makeNullable/Readable` or `mixinNullable/Readable` to
be a little more clear?
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> [JS] Separate Vector into BatchVector and CompositeVector
> ---------------------------------------------------------
>
> Key: ARROW-1652
> URL: https://issues.apache.org/jira/browse/ARROW-1652
> Project: Apache Arrow
> Issue Type: Improvement
> Components: JavaScript
> Reporter: Brian Hulette
> Assignee: Paul Taylor
> Priority: Major
> Labels: Performance, pull-request-available
>
> CompositeVector should have a {{batch(..)}} function that returns a
> BatchVector
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