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14 lines
631 B
MySQL
14 lines
631 B
MySQL
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set allow_experimental_low_cardinality_type = 1;
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SELECT CAST(NULL, 'LowCardinality(Nullable(Int8))');
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drop table if exists test.lc_null_int8_defnull;
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CREATE TABLE test.lc_null_int8_defnull (val LowCardinality(Nullable(Int8)) DEFAULT NULL) ENGINE = MergeTree order by tuple();
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insert into test.lc_null_int8_defnull values (1);
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select * from test.lc_null_int8_defnull values;
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alter table test.lc_null_int8_defnull add column val2 LowCardinality(Nullable(Int8)) DEFAULT NULL;
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insert into test.lc_null_int8_defnull values (2, 3);
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select * from test.lc_null_int8_defnull order by val;
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drop table if exists test.lc_null_int8_defnull;
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