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new optimisation for ref_null (SCRUM) (WL#818)

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bell@sanja.is.com.ua
2003-07-17 19:39:31 +03:00
parent d9b108c12f
commit 7e34954b5e
8 changed files with 90 additions and 32 deletions
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sql/sql_select.h
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@ -411,3 +411,4 @@ bool cp_buffer_from_ref(TABLE_REF *ref);
bool error_if_full_join(JOIN *join);
void relink_tables(SELECT_LEX *select_lex);
int report_error(TABLE *table, int error);
int safe_index_read(JOIN_TAB *tab);