45
45
key (`col_enum_key` )) ENGINE=innodb;
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58
CASE WHEN IS_USED_IN_PRIMARY = 'TRUE' THEN 'primary'
62
64
select AVG(`col_int_key`) + AVG(`col_int`) AS average1,
63
65
(SUM(`col_int_key`) + SUM(`col_int`)) / COUNT(*) AS average2,
64
66
COUNT(*) AS count FROM t1;
66
68
select collation_name,character_set_name FROM data_dictionary.collations;
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69
select COUNT(*) from data_dictionary.tables;