Fix result scan JSON Parsing from ResultSet

[osipovartem]

Fix read_query_batches for Correct JSON Parsing from ResultSet

• This PR fixes an issue in read_query_batches where the function incorrectly attempted to parse the full ResultSet JSON object instead of extracting and transforming the rows field into Arrow-compatible JSON.
• Fixed DataFusion error: Error during planning: table function 'embucket' not found (dbt: DataFusion error: Error during planning: table function 'embucket' not found #1056)

Summary of Changes:

• Fixed JSON parsing logic:
  • Extracted the rows field from ResultSet.
  • Combined it with column names from ResultSet.columns to generate line-delimited JSON objects (Arrow-compatible).
  • Replaced usage of the original result_json with the newly constructed Arrow-compatible JSON string during schema inference and batch reading.
• Added helper function convert_resultset_to_arrow_json_lines:
  • Converts Vec and Vec into newline-delimited JSON records:
    {"a": 1, "b": "2", "c": true}
    {"a": 2.0, "b": "4", "c": false}
• Added a check related to [BUG] Result_scan should be skipped by relations visitor #1055 to skip fully qualified names for table functions. This changes fixes flatten, result_scan and any orher registered table func
• Added more tests

[github-actions]

SQL Logic Tests Results ❌

Coverage by SLT File

• select: 19/20 (95.0%)
• from: 2/2 (100.0%)
• result_scan: 0/3 (0.0%)

Overall: 21/25 (84.0%)

[DanCodedThis]

dbt seed after scipt like in #1056, probably unrelated to this

11:45:54  Running with dbt=1.9.6
11:45:54  Registered adapter: snowflake=1.9.4
11:45:55  Found 18 models, 103 data tests, 3 seeds, 2 operations, 8 sources, 771 macros
11:45:55  
11:45:55  Concurrency: 1 threads (target='dev')
11:45:55  
11:45:56  
11:45:56  Finished running  in 0 hours 0 minutes and 1.21 seconds (1.21s).
11:45:56  Encountered an error:
Database Error
  000200: DataFusion error: Schema error: No field named all_objects.name. Valid fields are all_tables.table_catalog, all_tables.table_schema, all_tables.table_name, all_tables.table_type, all_tables.is_iceberg.

[osipovartem]

dbt seed after scipt like in #1056, probably unrelated to this

11:45:54  Running with dbt=1.9.6
11:45:54  Registered adapter: snowflake=1.9.4
11:45:55  Found 18 models, 103 data tests, 3 seeds, 2 operations, 8 sources, 771 macros
11:45:55  
11:45:55  Concurrency: 1 threads (target='dev')
11:45:55  
11:45:56  
11:45:56  Finished running  in 0 hours 0 minutes and 1.21 seconds (1.21s).
11:45:56  Encountered an error:
Database Error
  000200: DataFusion error: Schema error: No field named all_objects.name. Valid fields are all_tables.table_catalog, all_tables.table_schema, all_tables.table_name, all_tables.table_type, all_tables.is_iceberg.

This is related to show objects and returned fields. Snowplow dbt seed runs show objects, and then result_scan with join by columns

[DanCodedThis]

LGTM