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JSONEachRow

Description

In this format, ClickHouse outputs each row as a separated, newline-delimited JSON Object. Alias: JSONLines, NDJSON.

Example Usage

Example:

{"num":42,"str":"hello","arr":[0,1]}
{"num":43,"str":"hello","arr":[0,1,2]}
{"num":44,"str":"hello","arr":[0,1,2,3]}

While importing data columns with unknown names will be skipped if setting input_format_skip_unknown_fields is set to 1.

Format Settings