asfimport opened a new issue, #104: URL: https://github.com/apache/arrow-js/issues/104
Table.fromStruct() only uses the first chunk from the input vector. ```javascript import { Bool, Field, Int32, Struct, Table, Vector } from "apache-arrow"; const myStruct = new Struct([ Field.new({ name: "over", type: new Int32() }), Field.new({ name: "out", type: new Bool() }) ]); const data = []; for(let i=0;i<1500;i++) { data.push({ over:i, out:i%2 === 0 }); // create a vector with two chunks const victor = Vector.from({ type: myStruct, /*highWaterMark: Infinity,*/ values: data }); console.log(victor.length); // 1500 const table = Table.fromStruct(victor); console.log(table.length); // 1000 ``` The workaround is to set highWaterMark to Infinity Table.new() works as expected ```javascript const int32Array = new Int32Array(1500);for(let i=0;i<1500;i++) int32Array[i] = i; const intVector = Vector.from({ type: new Int32(), values: int32Array}); console.log(intVector.length); // 1500 const intTable = Table.new({ intColumn:intVector }); console.log(intTable.length); // 1500 ``` The origin seems to be in Chunked.data() but I don't understand the code enough to propose a fix. **Reporter**: [David Saslawsky](https://issues.apache.org/jira/browse/ARROW-10450) <sub>**Note**: *This issue was originally created as [ARROW-10450](https://issues.apache.org/jira/browse/ARROW-10450). Please see the [migration documentation](https://github.com/apache/arrow/issues/14542) for further details.*</sub> -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@arrow.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org