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Added histogams for table columns.

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Igor Babaev
2013-03-25 23:48:29 -07:00
parent fc1c8ffdad
commit 1009832c13
23 changed files with 1328 additions and 339 deletions
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sql/sql_class.h
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@@ -501,6 +501,7 @@ typedef struct system_variables
ulong optimizer_search_depth;
ulong optimizer_use_condition_selectivity;
ulong use_stat_tables;
ulong histogram_size;
ulong preload_buff_size;
ulong profiling_history_size;
ulong read_buff_size;