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Increase max package length to 512M for mysql and mysqldump.

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Faster 'read_first_row' (Fixes slow 'preparing' state)
Read constant tables earlier, which provides better optimzations when using tables with <=1 row.
This also fixes a complicated bug involving const tables.
This commit is contained in:
monty@hundin.mysql.fi
2002-01-23 02:52:26 +02:00
parent c7384b75fc
commit 4609e627a5
10 changed files with 425 additions and 270 deletions
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sql/sql_select.h
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@ -158,7 +158,7 @@ class JOIN {
uint send_group_parts;
bool sort_and_group,first_record,full_join,group, no_field_update;
bool do_send_rows;
table_map const_table_map,outer_join;
table_map const_table_map,found_const_table_map,outer_join;
ha_rows send_records,found_records,examined_rows,row_limit;
POSITION positions[MAX_TABLES+1],best_positions[MAX_TABLES+1];
double best_read;