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should be it

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Mars Ultor
2025-10-24 19:21:19 -05:00
parent a4b23fc57c
commit f09560c7b1
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external/duckdb/test/sql/json/issues/internal_issue3146.test vendored Normal file
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# name: test/sql/json/issues/internal_issue3146.test
# description: Test internal issue 3146 - JSON parsing exception: Arrow datatype Map(Field ... ) not supported by Polars
# group: [issues]
# https://github.com/duckdblabs/duckdb-internal/issues/3146#issuecomment-2396148122
require json
statement ok
COPY (SELECT '{}') TO '__TEST_DIR__/empty_object.json' (FORMAT CSV, HEADER FALSE)
# for empty JSON objects we default to MAP(VARCHAR, JSON) as this is generic enough to fit any object
query I
SELECT typeof(json) FROM '__TEST_DIR__/empty_object.json'
----
MAP(VARCHAR, JSON)
# we can disable it with the map_inference_threshold parameter
query I
SELECT typeof(json) FROM read_json('__TEST_DIR__/empty_object.json', map_inference_threshold=-1)
----
JSON