[feature](hive)support hive catalog read json table. (#43469) #44848
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bp #43469
Problem Summary:
Support reading json format hive table like:
Behavior changed:
To implement this feature, this pr modifies
new_json_reader. Previously,new_json_readercould only insert data into columnString. In order to support inserting data into columns of other types,DataTypeSerDeis introduced to insert data into columns. To maintain compatibility with previous versions, changes to this pr are triggered only when reading hive json tables.Limitation of Use:
ROW FORMAT SERDE 'org.apache.hive.hcatalog.data.JsonSerDe';scenario is supported. For some properties specified inwith serdeproperties, Doris does not take effect.example:
Todo(in next pr):
Merge
serdeandjson_reader,because they have logical conflicts.Hive catalog support read json format table.
What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
Release note
None
Check List (For Author)
Test
Behavior changed:
Does this need documentation?
Check List (For Reviewer who merge this PR)