Improve performance of json functions

[Dith3r]

Description

Avoid allocating heap ByteBuffer used by InputStreamReader and use StringReader for small inputs. (FasterXML/jackson-core#1081)

Before change:

FilterProject[filterPredicate = (CASE WHEN (data <> varchar 'second') THEN contains(transform($internal$json_string_to_array_cast(data_0), (x) -> json_extract_scalar(x, JsonPath '$.name')), data) ELSE boolean 'false' END)]
     │   Layout: [data:varchar]                                                                                                          
     │   Estimates: {rows: ? (?), cpu: 216.78G, memory: 0B, network: 0B}/{rows: ? (?), cpu: ?, memory: 0B, network: 0B}                  
     │   CPU: 35.08s (91.80%), Scheduled: 36.97s (87.41%), Blocked: 0.00ns (0.00%), Output: 3492632 rows (34.65MB)          

After:

FilterProject[filterPredicate = (CASE WHEN (data <> varchar 'second') THEN contains(transform($internal$json_string_to_array_cast(data_0), (x) -> json_extract_scalar(x, JsonPath '$.name')), data) ELSE boolean 'false' END)]
     │   Layout: [data:varchar]                                                                                                          
     │   Estimates: {rows: ? (?), cpu: 216.78G, memory: 0B, network: 0B}/{rows: ? (?), cpu: ?, memory: 0B, network: 0B}                  
     │   CPU: 16.49s (95.06%), Scheduled: 17.24s (82.05%), Blocked: 2.81s (92.72%), Output: 3492632 rows (34.65MB)            

Query execution time dropped from 6.40s to 4.29s

Additional context and related issues

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# General
* Improve JSON parsing performance. ({issue}`issuenumber`)

[Dith3r]

CI failure is not related to change.

[sopel39]

nice find! Some comments

[sopel39]

nice find!