distsql, executor: fix select channel bug that may discard error. #2226
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When select receives two channels, both of them can return, which case will be selected is undetermined. Use one channel with resp and error to avoid this issue.
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LGTM |
1 similar comment
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LGTM |
tiancaiamao
reviewed
Dec 12, 2016
| @@ -72,10 +72,13 @@ type selectResult struct { | |||
| resp kv.Response | |||
| ignoreData bool | |||
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| results chan PartialResult | |||
| done chan error | |||
| results chan resultWithErr | |||
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I sugguest *resultWithErr...
use chan for value instead of ptr is heavy
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When select receives two channels, both of them can return, which case will
be selected is undetermined.
Use one channel with resp and error to avoid this issue.