chore: remove unused api methods

ibis/backends/athena/__init__.py

@@ -389,19 +389,6 @@ def from_connection(
     def _post_connect(self, *, memtable_volume: str) -> None:
         pass
 
-    def _in_memory_table_exists(self, name: str) -> bool:
-        catalog_name = self.current_catalog
-        schema_name = self.current_database
-        with self.con.cursor() as cur:
-            result = cur.list_table_metadata(
-                catalog_name=catalog_name,
-                schema_name=schema_name,
-                expression=name,
-                max_results=1,
-            )
-        assert 0 <= len(result) <= 1, f"{len(result) = }"
-        return bool(result)
-
     def _register_in_memory_table(self, op: ops.InMemoryTable) -> None:
         import pyarrow.parquet as pq
 

ibis/backends/databricks/__init__.py

@@ -26,7 +26,7 @@
 from ibis import util
 from ibis.backends import CanCreateDatabase, UrlFromPath
 from ibis.backends.sql import SQLBackend
-from ibis.backends.sql.compilers.base import STAR, AlterTable, C, RenameTable
+from ibis.backends.sql.compilers.base import STAR, AlterTable, RenameTable
 
 if TYPE_CHECKING:
     from collections.abc import Mapping
@@ -387,23 +387,6 @@ def _post_connect(self, *, memtable_volume: str) -> None:
     def _memtable_volume_path(self) -> str:
         return f"/Volumes/{self._memtable_catalog}/{self._memtable_database}/{self._memtable_volume}"
 
-    def _in_memory_table_exists(self, name: str) -> bool:
-        sql = (
-            sg.select(self.compiler.f.count(STAR))
-            .from_(
-                sg.table("views", db="information_schema", catalog=self.current_catalog)
-            )
-            .where(
-                C.table_name.eq(sge.convert(name)),
-                C.table_schema.eq(self.compiler.f.current_database()),
-            )
-        )
-        with self._safe_raw_sql(sql) as cur:
-            [(out,)] = cur.fetchall()
-
-        assert 0 <= out <= 1, str(out)
-        return out == 1
-
     def _register_in_memory_table(self, op: ops.InMemoryTable) -> None:
         import pyarrow.parquet as pq