CCF_100
/
relational
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

More of the same

master
Salvo 'LtWorf' Tomaselli 2020-06-18 16:59:15 +07:00
parent 95a4287e68
commit 79610ab8f5
No known key found for this signature in database
GPG Key ID: B3A7CF0C801886CF
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
relational/optimizations.py
Unescape Escape View File

@ -126,7 +126,9 @@ def futile_union_intersection_subtraction(n: parser.Node) -> Tuple[parser.Node,
n.right.child), 1 n.right.child), 1
# Subtraction of the same thing or with selection on the left child # Subtraction of the same thing or with selection on the left child
elif n.name == DIFFERENCE and (n.left == n.right or (n.left.name == SELECTION and n.left.child == n.right)): elif n.name == DIFFERENCE and \
isinstance(n, Binary) and \
(n.left == n.right or (n.left.name == SELECTION and n.left.child == n.right)):
return Unary( return Unary(
SELECTION, SELECTION,
'False', 'False',
@ -329,7 +331,7 @@ def swap_rename_projection(n: parser.Node) -> Tuple[parser.Node, int]:
del renames[i] del renames[i]
child = Unary(PROJECTION,'' , n.child.child) child = Unary(PROJECTION,'' , n.child.child)
child.set_projection_prop(projections) child.set_projection_prop(list(projections))
n = Unary(RENAME, '', child) n = Unary(RENAME, '', child)
n.set_rename_prop(renames) n.set_rename_prop(renames)
return n, 1 return n, 1