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29 lines
784 B
SQL
29 lines
784 B
SQL
-- { echo }
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-- create table
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drop table if exists test;
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create table test(`a` Nullable(Int32), `b` Nullable(Int32)) ENGINE = Memory;
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insert into test (a,b) values (1,null), (2,3), (4, 5), (6,null);
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-- first value
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select first_value(b) from test;
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select first_value(b) ignore nulls from test;
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select first_value(b) respect nulls from test;
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-- last value
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select last_value(b) from test;
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select last_value(b) ignore nulls from test;
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select last_value(b) respect nulls from test;
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SET enable_analyzer = 1;
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-- first value
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select first_value(b) from test;
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select first_value(b) ignore nulls from test;
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select first_value(b) respect nulls from test;
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-- last value
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select last_value(b) from test;
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select last_value(b) ignore nulls from test;
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select last_value(b) respect nulls from test;
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