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23263db66e
Fixed memory leak in _db_set() (Bug#24497 Valgrind warning: get_one_option) Don't call net_clear() on COM_QUIT. This avoids a warning from net_clear() after shutdown: "skipped ## bytes from file" BUG#21428: skipped 9 bytes from file: socket (3)" on "mysqladmin shutdown"
22 lines
818 B
Plaintext
22 lines
818 B
Plaintext
When comparing with ms-sql:
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Check how to get MySQL faster mysql ms-sql
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count_distinct (2000) | 89.00| 39.00|
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count_distinct_big (120) | 324.00| 121.00|
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count_distinct_group (1000) | 158.00| 107.00|
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count_distinct_group_on_key (1000) | 49.00| 17.00|
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count_distinct_group_on_key_parts (1| 157.00| 108.00|
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order_by_big (10) | 197.00| 89.00|
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order_by_big_key (10) | 170.00| 82.00|
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order_by_big_key2 (10) | 163.00| 73.00|
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order_by_big_key_desc (10) | 172.00| 84.00|
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order_by_big_key_diff (10) | 193.00| 89.00|
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order_by_big_key_prefix (10) | 165.00| 72.00|
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Why is the following slow on NT:
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NT Linux
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update_of_primary_key_many_keys (256| 560.00| 65.00|
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