dbcli/sqlglot
1
0
Fork 0
Code Issues Activity

Merging upstream version 6.3.1.

Browse source 
Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-13 14:45:11 +01:00
parent 81e6900b0a
commit 393757f998
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
41 changed files with 1558 additions and 267 deletions
Download patch file Download diff file Expand all files Collapse all files

8
sqlglot/optimizer/simplify.py
View file

@ -56,12 +56,16 @@ def simplify_not(expression):
NOT (x AND y) -> NOT x OR NOT y
"""
if isinstance(expression, exp.Not):
if isinstance(expression.this, exp.Null):
return NULL
if isinstance(expression.this, exp.Paren):
condition = expression.this.unnest()
if isinstance(condition, exp.And):
return exp.or_(exp.not_(condition.left), exp.not_(condition.right))
if isinstance(condition, exp.Or):
return exp.and_(exp.not_(condition.left), exp.not_(condition.right))
if isinstance(condition, exp.Null):
return NULL
if always_true(expression.this):
return FALSE
if expression.this == FALSE:
@ -95,10 +99,10 @@ def simplify_connectors(expression):
return left
if isinstance(expression, exp.And):
if NULL in (left, right):
return NULL
if FALSE in (left, right):
return FALSE
if NULL in (left, right):
return NULL
if always_true(left) and always_true(right):
return TRUE
if always_true(left):