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Removed not used members in class POSITION
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Removed members:
- records_after_filter
- prev_record_reads
This commit is contained in:
Monty 2025-09-26 13:52:35 +03:00
parent 1e8dddbdbb
commit 797f50d107
2 changed files with 4 additions and 34 deletions
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27
sql/sql_select.cc
View File

@ -8740,9 +8740,7 @@ struct best_plan
double cost; // Smallest cost found
double records; // Old 'Records'
double records_read; // Records accessed
double records_after_filter; // Records_read + filter
double records_out; // Smallest record count seen
double prev_record_reads; // Save value from prev_record_reads
double identical_keys; // Save value from prev_record_reads
Range_rowid_filter_cost_info *filter; // Best filter
KEYUSE *key; // Best key
@ -8804,10 +8802,9 @@ best_access_path(JOIN *join,
best.cost= DBL_MAX;
best.records= DBL_MAX;
best.records_read= DBL_MAX;
best.records_after_filter= DBL_MAX;
best.records_out= MY_MIN(table->stat_records() * table->cond_selectivity,
table->opt_range_condition_rows);
best.prev_record_reads= best.identical_keys= 0;
best.identical_keys= 0;
best.filter= 0;
best.key= 0;
best.max_key_part= 0;
@ -9514,7 +9511,6 @@ best_access_path(JOIN *join,
add("cost", cur_cost);
}
/*
The COST_EPS is here to ensure we use the first key if there are
two 'identical keys' that could be used.
@ -9529,17 +9525,6 @@ best_access_path(JOIN *join,
*/
best.records= records; // Records before filter!
best.records_read= records;
/*
If we are using 'use_cond_selectivity > 1' then
table_after_join_selectivity() may take into account other
filters that what is currently used so we have to use
records_after_filter. If 'use_cond_selectivity <= 1 then we
can use information from the best filter.
*/
best.records_after_filter= ((use_cond_selectivity > 1) ?
records_after_filter :
records_best_filter);
best.prev_record_reads= prev_record_count;
best.identical_keys= identical_keys;
best.key= start_key;
best.found_ref= found_ref;
@ -9668,7 +9653,6 @@ best_access_path(JOIN *join,
(double) thd->variables.join_buff_size));
cur_cost= COST_MULT(cur_cost, refills);
/*
Cost of doing the hash lookup and check all matching rows with the
WHERE clause.
@ -9685,7 +9669,7 @@ best_access_path(JOIN *join,
cur_cost= COST_ADD(cur_cost, copy_cost + where_cost);
best.cost= cur_cost;
best.records_read= best.records_after_filter= rows2double(s->records);
best.records_read= rows2double(s->records);
best.records= rnd_records; // Records after where (Legacy value)
best.key= hj_start_key;
best.ref_depends_map= 0;
@ -10060,9 +10044,6 @@ best_access_path(JOIN *join,
records_after_filter. If 'use_cond_selectivity <= 1 then we
can use information from the best filter.
*/
best.records_after_filter= ((use_cond_selectivity > 1) ?
records_after_filter :
records_best_filter);
best.key= 0;
best.forced_index= forced_index;
/*
@ -10099,11 +10080,9 @@ best_access_path(JOIN *join,
/* Update the cost information for the current partial plan */
pos->loops= record_count;
pos->records_init= best.records_read;
pos->records_after_filter= best.records_after_filter;
pos->records_read= best.records;
pos->records_out= best.records_out;
pos->prev_record_reads= best.prev_record_reads;
pos->identical_keys= best.identical_keys;
pos->identical_keys= best.identical_keys;
pos->read_time= best.cost;
pos->key= best.key;
pos->forced_index= best.forced_index;

11
sql/sql_select.h
View File

@ -1015,15 +1015,6 @@ public:
/* number of rows that will be read from the table */
double records_init;
/*
Number of rows left after filtering, calculated in best_access_path()
In case of use_cond_selectivity > 1 it contains rows after the used
rowid filter (if such one exists).
If use_cond_selectivity <= 1 it contains the minimum rows of any
rowid filtering or records_init if no filter exists.
*/
double records_after_filter;
/*
Number of expected rows before applying the full WHERE clause. This
includes rowid filter and table->cond_selectivity if
@ -1054,7 +1045,7 @@ public:
double records_out;
/* Values from prev_record_reads call for EQ_REF table*/
double prev_record_reads, identical_keys;
double identical_keys;
/* The selectivity of the pushed down conditions */
double cond_selectivity;