sql to create one record for a ip - sql

Question

I have a dataset:
IP,web,rule
12.54.5435,web1,rule1
12.54.5435,web1,rule1
12.54.5435,web2,rule1
12.54.5435,web1,rule2
13.54.5435,web1,rule1
13.54.5435,web1,rule1
13.54.5435,web1,rule1
13.54.5435,web1,rule2
For every ip, i need to create a single record that looks like
total_count,ip, webrulecountlist
4,12.54.5435, ['web1,rule1, 2', 'web2,rule1,1', 'web1,rule2,1']
4,13.54.5435, ['web1, rule1, 3', 'web1, rule2, 1']
My inner query looks like this:
select count(ip) as c, ip, webacl, rule from t1 group by ip, webacl, rule
above query output is:
2,12.54.5435,web1,rulw1
1,12.54.5435,web1,rulw2
1,12.54.5435,web2,rulw1
3,13.54.5435,web1,rulw1
1,13.54.5435,web1,rulw2
but how can i now group by ip combining column values

Answer 1

Using https://nightlies.apache.org/flink/flink-docs-master/docs/dev/table/functions/systemfunctions/ for a list of functions:
|| concatenates.
CHR(##) gives us a text character for ascii equilivant
LISTAGG() lets us combine multiple rows into 1.
So...Maybe... [UNTESTED / no means to test]
SELECT sum(CNT) as c, --- Note Sum() not count
IP,
LISTAGG(Chr(39) || --- add first apostrophe
WEB || ', ' || --- Add WebName & ,
Rule || ', ' || --- Add Rule & ,
CNT || Chr(39) ',')--- Add Cnt and apostrophe & Separate sets by , though
--- technically we don't need the ',' as , is the default
--- syntax might be [,] instead of ',' too
FROM (SELECT COUNT(*) as CNT, IP, Web, Rule
FROM t1
GROUP BY IP, Web, Rule) Sub -- Create derived table (Sub) getting counts for
-- duplicates by IP, Web, Rule
GROUP BY IP