refactor: rename View child to parent

Author: mesejo

ibis/backends/polars/compiler.py

@@ -1395,7 +1395,7 @@ def execute_sql_string_view(op, *, ctx: pl.SQLContext, **kw):
 
 @translate.register(ops.View)
 def execute_view(op, *, ctx: pl.SQLContext, **kw):
-    child = translate(op.child, ctx=ctx, **kw)
+    child = translate(op.parent, ctx=ctx, **kw)
     ctx.register(op.name, child)
     return child
 

ibis/backends/sql/compilers/base.py

@@ -1545,19 +1545,19 @@ def visit_Limit(self, op, *, parent, n, offset):
     def visit_CTE(self, op, *, parent):
         return sg.table(parent.alias_or_name, quoted=self.quoted)
 
-    def visit_View(self, op, *, child, name: str):
-        if isinstance(child, sge.Table):
-            child = sg.select(STAR, copy=False).from_(child, copy=False)
+    def visit_View(self, op, *, parent, name: str):
+        if isinstance(parent, sge.Table):
+            parent = sg.select(STAR, copy=False).from_(parent, copy=False)
         else:
-            child = child.copy()
+            parent = parent.copy()
 
-        if isinstance(child, sge.Subquery):
-            return child.as_(name, quoted=self.quoted)
+        if isinstance(parent, sge.Subquery):
+            return parent.as_(name, quoted=self.quoted)
         else:
             try:
-                return child.subquery(name, copy=False)
+                return parent.subquery(name, copy=False)
             except AttributeError:
-                return child.as_(name, quoted=self.quoted)
+                return parent.as_(name, quoted=self.quoted)
 
     def visit_SQLStringView(self, op, *, query: str, child, schema):
         return sg.parse_one(query, read=self.dialect)

ibis/expr/operations/relations.py

@@ -438,12 +438,11 @@ class SQLQueryResult(Relation):
 class View(PhysicalTable):
     """A view created from an expression."""
 
-    # TODO(kszucs): rename it to parent
-    child: Relation
+    parent: Relation
 
     @attribute
     def schema(self):
-        return self.child.schema
+        return self.parent.schema
 
 
 @public

ibis/expr/types/relations.py

@@ -3930,7 +3930,7 @@ def alias(self, alias: str, /) -> ir.Table:
         │ Adelie  │ Torgersen │           36.7 │          19.3 │               193 │ … │
         └─────────┴───────────┴────────────────┴───────────────┴───────────────────┴───┘
         """
-        return ops.View(child=self, name=alias).to_expr()
+        return ops.View(parent=self, name=alias).to_expr()
 
     def sql(self, query: str, /, *, dialect: str | None = None) -> ir.Table:
         '''Run a SQL query against a table expression.
@@ -4026,7 +4026,7 @@ def sql(self, query: str, /, *, dialect: str | None = None) -> ir.Table:
 
         if isinstance(op, ops.View):
             name = op.name
-            expr = op.child.to_expr()
+            expr = op.parent.to_expr()
         else:
             name = util.gen_name("sql_query")
             expr = self