diff options
| author |  Adam Chlipala <adam@chlipala.net> | 2012-06-03 11:29:31 -0400 |
|---|---|---|
| committer | Adam Chlipala <adam@chlipala.net> | 2012-06-03 11:29:31 -0400 |
| commit | 797db05343b520b16ea4f8eeab5fea6255d3284d (patch) | |
| tree | deacf0a9ebedccbc3e22fdb143c51d3dcc153a5b /lib/ur/top.ur | |
| parent | 858481a426ea3873440c3bed30eb563f8cf3480e (diff) | |
Lighter-weight encoding of window function use
Diffstat (limited to 'lib/ur/top.ur')
| -rw-r--r-- | lib/ur/top.ur | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/lib/ur/top.ur b/lib/ur/top.ur index 60774ba5..e504204e 100644 --- a/lib/ur/top.ur +++ b/lib/ur/top.ur @@ -376,14 +376,14 @@ fun nonempty [fs] [us] (t : sql_table fs us) = oneRowE1 (SELECT COUNT( * ) > 0 AS B FROM t) fun eqNullable [tables ::: {{Type}}] [agg ::: {{Type}}] [exps ::: {Type}] - [aw ::: {Unit}] [t ::: Type] (_ : sql_injectable (option t)) - (e1 : sql_exp tables agg exps aw (option t)) - (e2 : sql_exp tables agg exps aw (option t)) = + [t ::: Type] (_ : sql_injectable (option t)) + (e1 : sql_exp tables agg exps (option t)) + (e2 : sql_exp tables agg exps (option t)) = (SQL ({e1} IS NULL AND {e2} IS NULL) OR {e1} = {e2}) fun eqNullable' [tables ::: {{Type}}] [agg ::: {{Type}}] [exps ::: {Type}] - [aw ::: {Unit}] [t ::: Type] (_ : sql_injectable (option t)) - (e1 : sql_exp tables agg exps aw (option t)) + [t ::: Type] (_ : sql_injectable (option t)) + (e1 : sql_exp tables agg exps (option t)) (e2 : option t) = case e2 of None => (SQL {e1} IS NULL) |