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query_init:
USE hivol ;
query:
{ @nonaggregates = () ; $tables = 0 ; $fields = 0 ; ""}
fbase_query ;
fbase_query:
fbase_query1 ;
fbase_query1:
# will have series, film_crew, and genre
SELECT distinct straight_join select_option fbase_query1_select_list
FROM `fbase_film_series` AS table1 left_right_outer JOIN
`fbase_film_crew` AS table2
ON table1 . fbase_film_detail_id = table2 . fbase_film_detail_id
left_right_outer JOIN `fbase_film_genre` AS table3
ON table_one_two . fbase_film_detail_id = table3 . fbase_film_detail_id
WHERE ( fbase_film_series_where_list )
and_or ( fbase_film_crew_where_list )
and_or ( fbase_film_genre_where_list )
opt_fbase_query1_having_clause
ORDER BY total_order_by LIMIT limit_value ;
fbase_query1_select_list:
table1 . fbase_film_detail_id AS { my $f = "field".++$fields ; push @nonaggregates , $f ; $f } ,
fbase_role_code AS { my $f = "field".++$fields ; push @nonaggregates , $f ; $f } ,
genre_tag AS { my $f = "field".++$fields ; push @nonaggregates , $f ; $f } ;
fbase_select_disabled:
fbase_film_series_select_list |
fbase_film_genre_select_list |
fbase_film_crew_select_list ;
fbase_film_series_select_list:
'a' ;
opt_fbase_query1_having_clause:
| | | | | | fbase_query1_having_clause ;
fbase_query1_having_clause:
HAVING fbase_query1_having_list ;
fbase_query1_having_list:
fbase_film_series_where_list |
fbase_film_genre_where_list |
fbase_film_crew_where_list ;
fbase_film_series_where_list:
fbase_film_series_where_item |
fbase_film_series_where_item and_or fbase_film_series_where_list ;
fbase_film_series_where_item:
related_film_id comparison_operator char_value |
( related_film_id BETWEEN char_value AND char_value ) |
related_film_id comparison_operator table_one_two_three . fbase_film_detail_id |
sequel_flag comparison_operator true_false |
sequel_flag = zero_one ;
fbase_film_genre_where_list:
fbase_film_genre_where_item |
fbase_film_genre_where_item and_or fbase_film_series_where_list |
( fbase_film_genre_where_item and_or fbase_film_series_where_list ) |
( fbase_film_genere_where_item ) and_or fbase_film_series_where_list ;
fbase_film_genre_where_item:
genre_tag comparison_operator char_value |
( genre_tag BETWEEN char_value AND char_value ) |
genre_tag LIKE first_letter ;
genre_tag IN ( fbase_genre_list ) ;
fbase_genre_list:
fbase_genre_item | fbase_genre_item , fbase_genre_list ;
fbase_genre_item:
'Camp' | 'Comedy' | 'Crime' | 'Cyberpunk' |
'Horror' | 'History' | 'Martial arts' | 'Sports' ;
fbase_film_crew_where_list:
fbase_film_crew_where_item |
fbase_film_crew_where_item and_or fbase_film_series_where_list |
( fbase_film_crew_where_item and_or fbase_film_series_where_list ) |
( fbase_film_genere_where_item ) and_or fbase_film_series_where_list ;
fbase_film_crew_where_item:
fbase_role_code LIKE first_letter |
fbase_role_code comparison_operator char_value |
LENGTH( fbase_role_code ) comparison_operator numeric_value |
( fbase_role_code BETWEEN char_value AND char_value ) |
fbase_role_code IN ( fbase_role_list ) ;
fbase_role_list:
fbase_role_item | fbase_role_item , fbase_role_list ;
fbase_role_item:
'actor' | 'director' | 'producer' | 'writer' | 'editor' ;
##############################################################################
# value rules
# rules that contain lists of possible values for a comparison, etc
##############################################################################
true_false:
TRUE | FALSE ;
zero_one:
0 | 1 ;
table_one_two:
table1 | table2 ;
table_one_two_three:
table1 | table2 | table3 ;
year_value:
_year | 1900 | 1910 | 1920 | 1930 |
1940 | 1950 | 1960 | 1970 |
1975 | 1980 | 1985 | 1990 | 1995 ;
first_letter:
'A%' | 'B%' | 'C%' | 'D%' | 'E%' | 'F%' | 'G%' | 'H%' | 'I%' | 'J%' | 'K%' | 'L%' | 'M%' | 'N%' |
'P%' | 'Q%' | 'R%' | 'S%' | 'T%' | 'U%' | 'V%' | 'X%' | 'Y%' | 'Z%' ;
char_value:
_char | _english | _english | _quid | _quid ;
numeric_value:
increment ;
small_increment:
1 | 1 | 2 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 ;
large_increment:
20 | 25 | 50 | 75 | 100 ;
increment:
small_increment | large_increment ;
limit_value:
1000 | 10000 | 5000 | 500 | 100 | 10 ;
:zero_one
0 | 1 ;
##############################################################################
# general utility rules
##############################################################################
total_order_by:
{ join(', ', map { "field".$_ } (1..$fields) ) } desc ;
group_by_clause:
{ scalar(@nonaggregates) > 0 ? " GROUP BY ".join (', ' , @nonaggregates ) : "" } ;
optional_group_by:
| | | | | | | | | | group_by_clause ;
size_aggregate:
MAX | MIN | AVG |
MAX | MIN | AVG | SUM ;
aggregate:
MAX | MIN | SUM | COUNT ;
comparison_operator:
# NOTE: '=' is omitted here as we are using random
# comparison values that are impossible to
# have a match
> | < | != | <> | <= | >= | greater_than | less_than ;
greater_than:
> | >= ;
less_than:
< | <= ;
left_right_outer:
| | | | | | | LEFT outer | LEFT outer | RIGHT outer ;
left_right:
| | | | LEFT | LEFT | LEFT | RIGHT ;
outer:
| | OUTER ;
distinct:
DISTINCT | | | | | | ;
select_option:
| | | | | | | | | SQL_SMALL_RESULT ;
straight_join:
| | | | | | | | | | | STRAIGHT_JOIN ;
not:
| | | NOT ;
and_or:
AND | AND | OR ;
desc:
ASC | | | DESC ;
|