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75 lines
1.5 KiB
SQL
75 lines
1.5 KiB
SQL
set allow_experimental_dynamic_type = 1;
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select 'JSON';
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select d, dynamicType(d) from format(JSONEachRow, 'd Dynamic', $$
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{"d" : 42}
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{"d" : 42.42}
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{"d" : "str"}
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{"d" : [1, 2, 3]}
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{"d" : "2020-01-01"}
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{"d" : "2020-01-01 10:00:00"}
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{"d" : {"a" : 42, "b" : "str"}}
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{"d" : {"a" : 43}}
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{"d" : {"a" : 44, "c" : [1, 2, 3]}}
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{"d" : [1, "str", [1, 2, 3]]}
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{"d" : null}
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{"d" : true}
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$$) format JSONEachRow;
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select d, dynamicType(d) from format(JSONEachRow, 'd Dynamic(max_types=2)', $$
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{"d" : 42}
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{"d" : 42.42}
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{"d" : "str"}
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{"d" : null}
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{"d" : true}
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$$) format JSONEachRow;
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select 'CSV';
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select d, dynamicType(d) from format(CSV, 'd Dynamic',
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$$42
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42.42
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"str"
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"[1, 2, 3]"
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"2020-01-01"
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"2020-01-01 10:00:00"
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"[1, 'str', [1, 2, 3]]"
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\N
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true
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$$) format CSV;
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select 'TSV';
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select d, dynamicType(d) from format(TSV, 'd Dynamic',
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$$42
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42.42
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str
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[1, 2, 3]
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2020-01-01
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2020-01-01 10:00:00
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[1, 'str', [1, 2, 3]]
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\N
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true
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$$) format TSV;
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select 'Values';
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select d, dynamicType(d) from format(Values, 'd Dynamic', $$
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(42)
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(42.42)
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('str')
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([1, 2, 3])
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('2020-01-01')
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('2020-01-01 10:00:00')
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(NULL)
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(true)
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$$) format Values;
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select '';
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select 'Cast using parsing';
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drop table if exists test;
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create table test (s String) engine=Memory;
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insert into test values ('42'), ('42.42'), ('[1, 2, 3]'), ('2020-01-01'), ('2020-01-01 10:00:00'), ('NULL'), ('true');
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set cast_string_to_dynamic_use_inference=1;
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select s::Dynamic as d, dynamicType(d) from test;
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select s::Dynamic(max_types=3) as d, dynamicType(d) from test;
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drop table test;
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