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Merge spetrunia@bk-internal.mysql.com:/home/bk/mysql-4.1

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into mysql.com:/dbdata/psergey/mysql-4.1-bug-tina


sql/handler.h:
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2004-09-13 16:26:01 +04:00
parent 786f841f7f b28118abfb
commit 736963b5e0
7 changed files with 102 additions and 15 deletions
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10
sql/handler.h
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@ -300,7 +300,15 @@ public:
virtual const key_map *keys_to_use_for_scanning() { return &key_map_empty; }
virtual bool has_transactions(){ return 0;}
virtual uint extra_rec_buf_length() { return 0; }
virtual ha_rows estimate_number_of_rows() { return records+EXTRA_RECORDS; }
/*
Return upper bound of current number of records in the table
(max. of how many records one will retrieve when doing a full table scan)
If upper bound is not known, HA_POS_ERROR should be returned as a max
possible upper bound.
*/
virtual ha_rows estimate_rows_upper_bound()
{ return records+EXTRA_RECORDS; }
virtual const char *index_type(uint key_number) { DBUG_ASSERT(0); return "";}