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Merging upstream version 10.0.8.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-13 14:54:32 +01:00
parent 407314e8d2
commit efc1e37108
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
67 changed files with 2461 additions and 840 deletions
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13
sqlglot/optimizer/eliminate_joins.py
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@ -128,8 +128,8 @@ def join_condition(join):
Tuple of (source key, join key, remaining predicate)
"""
name = join.this.alias_or_name
on = join.args.get("on") or exp.TRUE
on = on.copy()
on = (join.args.get("on") or exp.true()).copy()
on = on if isinstance(on, exp.And) else exp.and_(on, exp.true())
source_key = []
join_key = []
@ -141,7 +141,7 @@ def join_condition(join):
#
# should pull y.b as the join key and x.a as the source key
if normalized(on):
for condition in on.flatten() if isinstance(on, exp.And) else [on]:
for condition in on.flatten():
if isinstance(condition, exp.EQ):
left, right = condition.unnest_operands()
left_tables = exp.column_table_names(left)
@ -150,13 +150,12 @@ def join_condition(join):
if name in left_tables and name not in right_tables:
join_key.append(left)
source_key.append(right)
condition.replace(exp.TRUE)
condition.replace(exp.true())
elif name in right_tables and name not in left_tables:
join_key.append(right)
source_key.append(left)
condition.replace(exp.TRUE)
condition.replace(exp.true())
on = simplify(on)
remaining_condition = None if on == exp.TRUE else on
remaining_condition = None if on == exp.true() else on
return source_key, join_key, remaining_condition