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Post-review fixes for the patch that added the code allowing to use

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hash join over equi-join conditions without supporting indexes.
This commit is contained in:
Igor Babaev
2011-01-21 18:21:55 -08:00
parent ed2405788f
commit 0f46efcba6
4 changed files with 223 additions and 185 deletions
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11
sql/sql_select.h
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@@ -251,7 +251,15 @@ typedef struct st_join_table {
*/
ha_rows limit;
TABLE_REF ref;
/* TRUE <=> condition pushdown supports other tables presence */
bool icp_other_tables_ok;
/*
TRUE <=> condition pushed to the index has to be factored out of
the condition pushed to the table
*/
bool idx_cond_fact_out;
bool use_join_cache;
uint used_join_cache_level;
ulong join_buffer_size_limit;
JOIN_CACHE *cache;
/*
@@ -1247,8 +1255,7 @@ inline bool optimizer_flag(THD *thd, uint flag)
void eliminate_tables(JOIN *join);
/* Index Condition Pushdown entry point function */
void push_index_cond(JOIN_TAB *tab, uint keyno, bool other_tbls_ok,
bool factor_out);
void push_index_cond(JOIN_TAB *tab, uint keyno);
/****************************************************************************
Temporary table support for SQL Runtime