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drizzled/sql_update.cc
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                 COND *conds,
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                 uint order_num, ORDER *order,
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                 ha_rows limit,
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                 enum enum_duplicates handle_duplicates __attribute__((__unused__)),
 
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                 enum enum_duplicates handle_duplicates __attribute__((unused)),
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                 bool ignore)
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{
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  bool          using_limit= limit != HA_POS_ERROR;
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  Connect fields with tables and create list of tables that are updated
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*/
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int multi_update::prepare(List<Item> &not_used_values __attribute__((__unused__)),
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                          SELECT_LEX_UNIT *lex_unit __attribute__((__unused__)))
 
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int multi_update::prepare(List<Item> &not_used_values __attribute__((unused)),
 
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                          SELECT_LEX_UNIT *lex_unit __attribute__((unused)))
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{
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  TABLE_LIST *table_ref;
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  SQL_LIST update;
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    temp_fields.concat(fields_for_table[cnt]);
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    /* Make an unique key over the first field to avoid duplicated updates */
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    bzero((char*) &group, sizeof(group));
 
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    memset((char*) &group, 0, sizeof(group));
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    group.asc= 1;
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    group.item= (Item**) temp_fields.head_ref();
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}
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bool multi_update::send_data(List<Item> &not_used_values __attribute__((__unused__)))
 
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bool multi_update::send_data(List<Item> &not_used_values __attribute__((unused)))
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{
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  TABLE_LIST *cur_table;
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