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Merge from mysql-5.1.

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Alexander Nozdrin
2009-10-19 17:17:08 +04:00
parent 9b4b453ab8 bf14598c99
commit 3251065aef
60 changed files with 1540 additions and 274 deletions
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27
sql/sql_class.h
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@ -2647,7 +2647,32 @@ public:
MI_COLUMNDEF *recinfo,*start_recinfo;
KEY *keyinfo;
ha_rows end_write_records;
uint field_count,sum_func_count,func_count;
/**
Number of normal fields in the query, including those referred to
from aggregate functions. Hence, "SELECT `field1`,
SUM(`field2`) from t1" sets this counter to 2.
@see count_field_types
*/
uint field_count;
/**
Number of fields in the query that have functions. Includes both
aggregate functions (e.g., SUM) and non-aggregates (e.g., RAND).
Also counts functions referred to from aggregate functions, i.e.,
"SELECT SUM(RAND())" sets this counter to 2.
@see count_field_types
*/
uint func_count;
/**
Number of fields in the query that have aggregate functions. Note
that the optimizer may choose to optimize away these fields by
replacing them with constants, in which case sum_func_count will
need to be updated.
@see opt_sum_query, count_field_types
*/
uint sum_func_count;
uint hidden_field_count;
uint group_parts,group_length,group_null_parts;
uint quick_group;