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MDEV-4345

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Sampling of selectivity of LIKE predicate.
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2013-04-18 22:22:04 +03:00
parent 8c71e7a383
commit 9441e53653
16 changed files with 464 additions and 7 deletions
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sql/sql_class.h
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@ -505,6 +505,7 @@ typedef struct system_variables
ulong net_write_timeout;
ulong optimizer_prune_level;
ulong optimizer_search_depth;
ulong optimizer_selectivity_sampling_limit;
ulong optimizer_use_condition_selectivity;
ulong use_stat_tables;
ulong histogram_size;