fix(clickhouse): return the correct type from InSubquery operations

cpcloud · cpcloud · commit 69be18083a13 · 2025-07-28T13:14:43.000-04:00
diff --git a/ibis/backends/sql/compilers/clickhouse.py b/ibis/backends/sql/compilers/clickhouse.py
@@ -880,5 +880,10 @@ def visit_MapContains(self, op, *, arg, key):
             sg.or_(arg.is_(NULL), key.is_(NULL)), NULL, self.f.mapContains(arg, key)
         )
 
+    def visit_InSubquery(self, op, *, needle, rel):
+        # clickhouse returns `a IN b` as integers so we have to cast to get
+        # booleans
+        return self.cast(super().visit_InSubquery(op, needle=needle, rel=rel), op.dtype)
+
 
 compiler = ClickHouseCompiler()

Original file line number	Diff line number	Diff line change
`@@ -880,5 +880,10 @@ def visit_MapContains(self, op, *, arg, key):`
`880`	`880`	`sg.or_(arg.is_(NULL), key.is_(NULL)), NULL, self.f.mapContains(arg, key)`
`881`	`881`	`)`
`882`	`882`
	`883`	`+ def visit_InSubquery(self, op, *, needle, rel):`
	`884`	+ # clickhouse returns `a IN b` as integers so we have to cast to get
	`885`	`+ # booleans`
	`886`	`+ return self.cast(super().visit_InSubquery(op, needle=needle, rel=rel), op.dtype)`
	`887`	`+`
`883`	`888`
`884`	`889`	`compiler = ClickHouseCompiler()`