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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/03/17 09:43:52 UTC
[GitHub] [arrow] hunght3101 opened a new issue #9737: [Golang] How i create input format for IPC Reader?
hunght3101 opened a new issue #9737:
URL: https://github.com/apache/arrow/issues/9737
user@
In library
```
// NewReader returns a reader that reads records from an input stream.
func NewReader(r io.Reader, opts ...Option) (*Reader, error) {
return NewReaderFromMessageReader(NewMessageReader(r), opts...)
}
```
How i create parameter `r` right when i call NewReader function ?
Example :
```
var r io.Reader
r = strings.NewReader(input)
rr, err := ipc.NewReader(r, ipc.WithSchema(schema), ipc.WithAllocator(mem))
if err != nil {
fmt.Println(err)
}
```
How i create input ?
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[GitHub] [arrow] zeroshade commented on issue #9737: [Golang] How i create input format for IPC Reader?
Posted by GitBox <gi...@apache.org>.
zeroshade commented on issue #9737:
URL: https://github.com/apache/arrow/issues/9737#issuecomment-802215524
The input should be an IPC stream coming from either a file or from some other source. One way to do so would be to use the ipc.NewWriter to construct a writer and write `array.Record` objects to it, then use the resulting output.
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[GitHub] [arrow] emkornfield closed issue #9737: [Golang] How i create input format for IPC Reader?
Posted by GitBox <gi...@apache.org>.
emkornfield closed issue #9737:
URL: https://github.com/apache/arrow/issues/9737
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[GitHub] [arrow] emkornfield commented on issue #9737: [Golang] How i create input format for IPC Reader?
Posted by GitBox <gi...@apache.org>.
emkornfield commented on issue #9737:
URL: https://github.com/apache/arrow/issues/9737#issuecomment-805457038
Closing. Please if there are follow-ups let's discuss on the user@ mailing list. One nice addition might be some canonical documentation on how to use the Go API if one doesn't exist already.
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