pan3793 opened a new pull request, #52640:
URL: https://github.com/apache/spark/pull/52640
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### What changes were proposed in this pull request?
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I found that BeeLine does not work well with the arrow keys, for example,
when I push `up`, `down`, `left`, `right` keys, I see
```
$ spark-4.0.0-bin-hadoop3/bin/beeline
Beeline version 2.3.10 by Apache Hive
beeline> ^[[A^[[B^[[D^[[C
```
This is because of SPARK-50416, which wrongly expressed the intention of
SPARK-8731.
Brief history:
SPARK-8731 (3.4.0)
```
if [[ ( ! $(ps -o stat= -p $$) =~ "+" ) && ! ( -p /dev/stdin ) ]]; then
export SPARK_BEELINE_OPTS="$SPARK_BEELINE_OPTS
-Djline.terminal=jline.UnsupportedTerminal"
fi
```
SPARK-50416 (3.5.6, 4.0.0)
```
if [ -e /usr/bin/tty -a "`tty`" != "not a tty" -a ! -p /dev/stdin ]; then
export SPARK_BEELINE_OPTS="$SPARK_BEELINE_OPTS
-Djline.terminal=jline.UnsupportedTerminal"
fi
```
SPARK-53149 (this PR, the idea comes from the original author of
SPARK-50416, but it seems his GitHub account was deleted, so all his PR links
are inaccessible)
```
if [[ ( ! $(ps -o stat= -p $$ 2>/dev/null) =~ "+" ) && ! ( -p /dev/stdin )
]]; then
export SPARK_BEELINE_OPTS="$SPARK_BEELINE_OPTS
-Djline.terminal=jline.UnsupportedTerminal"
fi
```
### Why are the changes needed?
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Fix regression.
### Does this PR introduce _any_ user-facing change?
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Yes, restore the user experience of BeeLine.
### How was this patch tested?
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I don't have a Windows environment to test WSL and Cygwin cases, I verified
it on Linux and macOS, BeeLine works as expected with arrow keys.
### Was this patch authored or co-authored using generative AI tooling?
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No.
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