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[jira] [Created] (CALCITE-2704) Multilingual Decoded problem

pufan created CALCITE-2704:

             Summary: Multilingual Decoded problem
                 Key: CALCITE-2704
                 URL: https://issues.apache.org/jira/browse/CALCITE-2704
             Project: Calcite
          Issue Type: Bug
          Components: avatica
    Affects Versions: avatica-1.12.0, avatica-1.11.0
            Reporter: pufan
             Fix For: avatica-1.13.0

When we execute SQL with Chinese characters, we find that the server parses it in gibberish.

After checking the code, we found that:

org.apache.calcite.avatica.server.AvaticaJsonHandler.java line 109:
//The readFully method USES utf-8 encoding internally.
rawRequest = AvaticaUtils.readFully(inputStream, buffer);

But in the org.apache.calcite.avatica.server.AvaticaJsonHandler.java line 116:
// Decoded using iso-8859-1 Cause Chinese garble.
final String jsonRequest = new String(rawRequest.getBytes("ISO-8859-1"), "UTF-8");

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