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Scrum task !!!!! mysql-test/r/analyse.result: reverting a fix mysql-test/r/derived.result: derived tables with UNION's ... mysql-test/t/analyse.test: reverting a fix mysql-test/t/derived.test: derived tables with UNION's ... sql/mysql_priv.h: derived tables with UNION's ... sql/sql_analyse.cc: reverting a fix sql/sql_derived.cc: derived tables with UNION's ... sql/sql_lex.cc: derived tables with UNION's ... sql/sql_select.cc: derived tables with UNION's ... sql/sql_union.cc: derived tables with UNION's ...
18 lines
936 B
Plaintext
18 lines
936 B
Plaintext
drop table if exists t1,t2;
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create table t1 (i int, j int);
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insert into t1 values (1,2), (3,4), (5,6), (7,8);
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select * from t1 procedure analyse();
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Field_name Min_value Max_value Min_length Max_length Empties_or_zeros Nulls Avg_value_or_avg_length Std Optimal_fieldtype
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t1.i 1 7 1 1 0 0 4.0000 2.2361 ENUM('1','3','5','7') NOT NULL
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t1.j 2 8 1 1 0 0 5.0000 2.2361 ENUM('2','4','6','8') NOT NULL
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create table t2 select * from t1 procedure analyse();
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select * from t2;
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Field_name Min_value Max_value Min_length Max_length Empties_or_zeros Nulls Avg_value_or_avg_length Std Optimal_fieldtype
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t1.i 1 7 1 1 0 0 4.0000 2.2361 ENUM('1','3','5','7') NOT NULL
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t1.j 2 8 1 1 0 0 5.0000 2.2361 ENUM('2','4','6','8') NOT NULL
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drop table t1,t2;
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EXPLAIN SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE();
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY <derived2> system NULL NULL NULL NULL 1
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2 DERIVED No tables used
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