zkytech commented on code in PR #4443:
URL: https://github.com/apache/zeppelin/pull/4443#discussion_r945391927
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livy/src/main/java/org/apache/zeppelin/livy/LivySparkSQLInterpreter.java:
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@@ -141,6 +171,10 @@ public InterpreterResult interpret(String line,
InterpreterContext context) {
if (result.code() == InterpreterResult.Code.SUCCESS) {
InterpreterResult result2 = new
InterpreterResult(InterpreterResult.Code.SUCCESS);
for (InterpreterResultMessage message : result.message()) {
+ // when sql content is "use xxx", message.getData() is "df:
org.apache.spark.sql.DataFrame = []"
+ if (message.getType() == InterpreterResult.Type.TEXT &&
message.getData().equals("df: org.apache.spark.sql.DataFrame = []")){
Review Comment:
I have made a change in the latest submit, func `parseSQLJsonOutput` will
return empty List (means empty table without header) when result message is
less than 2 lines, and **all empty table without header** will be replaced by
text `success`.
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