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28 lines
1.2 KiB
SQL
28 lines
1.2 KiB
SQL
set allow_experimental_map_type = 1;
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-- String type
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drop table if exists table_map;
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create table table_map (a Map(String, String), b String) engine = Memory;
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insert into table_map values ({'name':'zhangsan', 'age':'10'}, 'name'), ({'name':'lisi', 'gender':'female'},'age');
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select mapContains(a, 'name') from table_map;
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select mapContains(a, 'gender') from table_map;
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select mapContains(a, 'abc') from table_map;
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select mapContains(a, b) from table_map;
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select mapContains(a, 10) from table_map; -- { serverError 43 }
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select mapKeys(a) from table_map;
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drop table if exists table_map;
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CREATE TABLE table_map (a Map(UInt8, Int), b UInt8, c UInt32) engine = MergeTree order by tuple();
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insert into table_map select map(number, number), number, number from numbers(1000, 3);
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select mapContains(a, b), mapContains(a, c), mapContains(a, 233) from table_map;
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select mapContains(a, 'aaa') from table_map; -- { serverError 43 }
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select mapContains(b, 'aaa') from table_map; -- { serverError 43 }
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select mapKeys(a) from table_map;
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select mapValues(a) from table_map;
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drop table if exists table_map;
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-- Const column
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select map( 'aa', 4, 'bb' , 5) as m, mapKeys(m), mapValues(m);
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select map( 'aa', 4, 'bb' , 5) as m, mapContains(m, 'aa'), mapContains(m, 'k');
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