[ZEPPELIN-5798] Add multiline sql statement support for Livy Spark SQL interpreter

[zkytech]

What is this PR for?

1. Add multiline sql statement support for Livy Spark SQL interpreter
2. Bug Fix
3. Bug Fix

What type of PR is it?

Feature & Bug Fix

What is the Jira issue?

https://issues.apache.org/jira/browse/ZEPPELIN-5798

How should this be tested?

execute multiline sql statement with ";", for example:

show databases;
use xxxx;
show tables;

Questions:

• Does the licenses files need to update? No
• Is there breaking changes for older versions? No
• Does this needs documentation? No

[zkytech]

I have found a new bug in this file.

message data like this will fail with exception com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected a string but was BEGIN_OBJECT at line 1 column 9 path $.

df: org.apache.spark.sql.DataFrame = [_id: struct<oid: string>, pv: bigint ... 2 more fields]
_id	pv	stats_date	uv	
{"_id":{"oid":"6295fdbd458288396d008163"},"pv":0,"stats_date":"20220530","uv":0}

which is caused by code in this place

I will fix this later.

[zjffdu]

ping @zkytech

[zkytech]

ping @zkytech

What should I do next?

[zjffdu]

@zkytech Have you resolved the issue in the above comment ?https://github.com/apache/zeppelin/pull/4443#issuecomment-1214710538

[zkytech]

@zkytech Have you resolved the issue in the above comment ?#4443 (comment)

Yes, It has been fixed in this commit https://github.com/apache/zeppelin/pull/4443/commits/c31945d85dd2add9021ed072904dd254efbe1a51

The url in commit message is wrong, it should be https://github.com/apache/zeppelin/pull/4443#issuecomment-1214710538,

[zjffdu]

Sorry for late response @zkytech Could you retrigger the CI?

[zkytech]

Sorry for late response @zkytech Could you retrigger the CI?

ok

[zjffdu]

@zkytech livy interpreter in CI is failed, could help fix it? LivySparkSQLInterpreter

[zkytech]

@zjffdu fixed

[Reamer]

Please rebase your PR to current master.

[zkytech]

@Reamer Done

[Reamer]

@Reamer Done

Let's wait for CI tests

[zkytech]

Unit test is required to update. Because JSON number is no longer treat as string in this place

[zkytech]

@zjffdu To fix this bug, I have made a change in this place, JSON number is no longer treat as string . Since JSON doesn't distinguish between integer and floating point fields, I have made a change to unit test, all number in json will be convert to float value.