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fixes for source pattern search, fixed tests

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This commit is contained in:
albert
2013-03-29 11:28:01 -04:00
parent 844a077599
commit 4f8cd6006c
5 changed files with 69 additions and 29 deletions
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24
db/migrate/20130328092739_change_source_pattern_index_on_posts.rb
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@@ -1,24 +1,30 @@
class ChangeSourcePatternIndexOnPosts < ActiveRecord::Migration
def up
execute "set statement_timeout = 0"
execute "DROP INDEX index_posts_on_pixiv_suffix;"
execute "DROP INDEX index_posts_on_source_pattern;"
begin
execute "DROP INDEX index_posts_on_pixiv_suffix"
execute "DROP INDEX index_posts_on_source_pattern"
rescue Exception
end
execute "CREATE FUNCTION SourcePattern(src text) RETURNS text AS $$
BEGIN
RETURN regexp_replace(src, '^[^/]*(//)?[^/]*\.pixiv\.net/img.*(/[^/]*/[^/]*)$', 'pixiv\2');
RETURN regexp_replace(src, '^[^/]*(//)?[^/]*\.pixiv\.net/img.*(/[^/]*/[^/]*)$', E'pixiv\\\\2');
END;
$$ LANGUAGE plpgsql IMMUTABLE RETURNS NULL ON NULL INPUT;"
$$ LANGUAGE plpgsql IMMUTABLE RETURNS NULL ON NULL INPUT"
execute "CREATE INDEX index_posts_on_source_pattern ON posts USING btree
((SourcePattern(source)) text_pattern_ops);"
((SourcePattern(source)) text_pattern_ops)"
# execute "CREATE INDEX index_posts_on_pixiv_id ON posts USING btree
# ((substring(source, 'pixiv.net/img.*/([0-9]+)[^/]*$')::integer))"
end
def down
execute "set statement_timeout = 0"
execute "DROP INDEX index_posts_on_source_pattern;"
execute "DROP FUNCTION SourcePattern(text);"
execute "DROP INDEX index_posts_on_source_pattern"
execute "DROP FUNCTION SourcePattern(text)"
execute "CREATE INDEX index_posts_on_source_pattern ON posts USING btree
(source text_pattern_ops);"
(source text_pattern_ops)"
execute "CREATE INDEX index_posts_on_pixiv_suffix ON posts USING btree
((substring(source, 'pixiv.net/img.*/([^/]*/[^/]*)$')) text_pattern_ops);"
((substring(source, 'pixiv.net/img.*/([^/]*/[^/]*)$')) text_pattern_ops)"
# execute "DROP INDEX index_posts_on_pixiv_id"
end
end