[563] Fix mysql_log example
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@ -43,8 +43,13 @@ void message_callback(struct mosquitto *mosq, void *obj, const struct mosquitto_
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bind[0].buffer_type = MYSQL_TYPE_STRING;
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bind[0].buffer = message->topic;
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bind[0].buffer_length = strlen(message->topic);
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// Note: payload is normally a binary blob and could contains
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// NULL byte. This sample does not handle it and assume payload is a
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// string.
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bind[1].buffer_type = MYSQL_TYPE_STRING;
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bind[1].buffer = message->payload;
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bind[1].buffer_length = message->payloadlen;
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mysql_stmt_bind_param(stmt, bind);
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mysql_stmt_execute(stmt);
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