diff --git a/ibis/bigquery/tests/test_compiler.py → .../backends/bigquery/tests/test_compiler.py b/ibis/bigquery/tests/test_compiler.py → .../backends/bigquery/tests/test_compiler.py
diff --git a/ibis/bigquery/tests/test_datatypes.py → ...backends/bigquery/tests/test_datatypes.py b/ibis/bigquery/tests/test_datatypes.py → ...backends/bigquery/tests/test_datatypes.py
diff --git a/ibis/expr/tests/__init__.py → ibis/backends/bigquery/tests/udf/__init__.py b/ibis/expr/tests/__init__.py → ibis/backends/bigquery/tests/udf/__init__.py
diff --git a/ibis/bigquery/udf/tests/test_core.py → .../backends/bigquery/tests/udf/test_core.py b/ibis/bigquery/udf/tests/test_core.py → .../backends/bigquery/tests/udf/test_core.py
diff --git a/ibis/bigquery/udf/tests/test_find.py → .../backends/bigquery/tests/udf/test_find.py b/ibis/bigquery/udf/tests/test_find.py → .../backends/bigquery/tests/udf/test_find.py
diff --git a/ibis/bigquery/udf/tests/test_udf_execute.py → ...ds/bigquery/tests/udf/test_udf_execute.py b/ibis/bigquery/udf/tests/test_udf_execute.py → ...ds/bigquery/tests/udf/test_udf_execute.py
diff --git a/ibis/bigquery/udf/api.py → ibis/backends/bigquery/udf/__init__.py b/ibis/bigquery/udf/api.py → ibis/backends/bigquery/udf/__init__.py
diff --git a/ibis/bigquery/udf/core.py → ibis/backends/bigquery/udf/core.py b/ibis/bigquery/udf/core.py → ibis/backends/bigquery/udf/core.py
diff --git a/ibis/bigquery/udf/find.py → ibis/backends/bigquery/udf/find.py b/ibis/bigquery/udf/find.py → ibis/backends/bigquery/udf/find.py
diff --git a/ibis/bigquery/udf/rewrite.py → ibis/backends/bigquery/udf/rewrite.py b/ibis/bigquery/udf/rewrite.py → ibis/backends/bigquery/udf/rewrite.py
diff --git a/ibis/clickhouse/api.py → ibis/backends/clickhouse/__init__.py b/ibis/clickhouse/api.py → ibis/backends/clickhouse/__init__.py
diff --git a/ibis/clickhouse/client.py → ibis/backends/clickhouse/client.py b/ibis/clickhouse/client.py → ibis/backends/clickhouse/client.py
diff --git a/ibis/clickhouse/compiler.py → ibis/backends/clickhouse/compiler.py b/ibis/clickhouse/compiler.py → ibis/backends/clickhouse/compiler.py
diff --git a/ibis/clickhouse/identifiers.py → ibis/backends/clickhouse/identifiers.py b/ibis/clickhouse/identifiers.py → ibis/backends/clickhouse/identifiers.py
diff --git a/ibis/clickhouse/operations.py → ibis/backends/clickhouse/operations.py b/ibis/clickhouse/operations.py → ibis/backends/clickhouse/operations.py
diff --git a/ibis/file/__init__.py → ibis/backends/clickhouse/tests/__init__.py b/ibis/file/__init__.py → ibis/backends/clickhouse/tests/__init__.py
diff --git a/ibis/clickhouse/tests/conftest.py → ibis/backends/clickhouse/tests/conftest.py b/ibis/clickhouse/tests/conftest.py → ibis/backends/clickhouse/tests/conftest.py
diff --git a/ibis/clickhouse/tests/test_aggregations.py → ...nds/clickhouse/tests/test_aggregations.py b/ibis/clickhouse/tests/test_aggregations.py → ...nds/clickhouse/tests/test_aggregations.py
diff --git a/ibis/clickhouse/tests/test_client.py → .../backends/clickhouse/tests/test_client.py b/ibis/clickhouse/tests/test_client.py → .../backends/clickhouse/tests/test_client.py
diff --git a/ibis/clickhouse/tests/test_functions.py → ...ckends/clickhouse/tests/test_functions.py b/ibis/clickhouse/tests/test_functions.py → ...ckends/clickhouse/tests/test_functions.py
diff --git a/ibis/clickhouse/tests/test_identifiers.py → ...ends/clickhouse/tests/test_identifiers.py b/ibis/clickhouse/tests/test_identifiers.py → ...ends/clickhouse/tests/test_identifiers.py
diff --git a/ibis/clickhouse/tests/test_literals.py → ...ackends/clickhouse/tests/test_literals.py b/ibis/clickhouse/tests/test_literals.py → ...ackends/clickhouse/tests/test_literals.py
diff --git a/ibis/clickhouse/tests/test_operators.py → ...ckends/clickhouse/tests/test_operators.py b/ibis/clickhouse/tests/test_operators.py → ...ckends/clickhouse/tests/test_operators.py
diff --git a/ibis/clickhouse/tests/test_select.py → .../backends/clickhouse/tests/test_select.py b/ibis/clickhouse/tests/test_select.py → .../backends/clickhouse/tests/test_select.py
diff --git a/ibis/clickhouse/tests/test_types.py → ibis/backends/clickhouse/tests/test_types.py b/ibis/clickhouse/tests/test_types.py → ibis/backends/clickhouse/tests/test_types.py
diff --git a/ibis/backends/conftest.py b/ibis/backends/conftest.py
diff --git a/ibis/file/csv.py → ibis/backends/csv/__init__.py b/ibis/file/csv.py → ibis/backends/csv/__init__.py
diff --git a/ibis/backends/csv/tests/conftest.py b/ibis/backends/csv/tests/conftest.py
diff --git a/ibis/file/tests/test_csv.py → ibis/backends/csv/tests/test_csv.py b/ibis/file/tests/test_csv.py → ibis/backends/csv/tests/test_csv.py
diff --git a/ibis/file/hdf5.py → ibis/backends/hdf5/__init__.py b/ibis/file/hdf5.py → ibis/backends/hdf5/__init__.py
diff --git a/ibis/backends/hdf5/tests/conftest.py b/ibis/backends/hdf5/tests/conftest.py
diff --git a/ibis/file/tests/test_hdf5.py → ibis/backends/hdf5/tests/test_hdf5.py b/ibis/file/tests/test_hdf5.py → ibis/backends/hdf5/tests/test_hdf5.py
diff --git a/ibis/impala/api.py → ibis/backends/impala/__init__.py b/ibis/impala/api.py → ibis/backends/impala/__init__.py
diff --git a/ibis/impala/client.py → ibis/backends/impala/client.py b/ibis/impala/client.py → ibis/backends/impala/client.py
diff --git a/ibis/impala/compat.py → ibis/backends/impala/compat.py b/ibis/impala/compat.py → ibis/backends/impala/compat.py
diff --git a/ibis/backends/impala/compiler.py b/ibis/backends/impala/compiler.py
diff --git a/ibis/backends/impala/ddl.py b/ibis/backends/impala/ddl.py
diff --git a/ibis/impala/kudu_support.py → ibis/backends/impala/kudu_support.py b/ibis/impala/kudu_support.py → ibis/backends/impala/kudu_support.py
diff --git a/ibis/impala/metadata.py → ibis/backends/impala/metadata.py b/ibis/impala/metadata.py → ibis/backends/impala/metadata.py
diff --git a/ibis/impala/pandas_interop.py → ibis/backends/impala/pandas_interop.py b/ibis/impala/pandas_interop.py → ibis/backends/impala/pandas_interop.py
diff --git a/ibis/impala/parquet.py → ibis/backends/impala/parquet.py b/ibis/impala/parquet.py → ibis/backends/impala/parquet.py
diff --git a/ibis/file/tests/__init__.py → ibis/backends/impala/tests/__init__.py b/ibis/file/tests/__init__.py → ibis/backends/impala/tests/__init__.py
diff --git a/ibis/impala/tests/conftest.py → ibis/backends/impala/tests/conftest.py b/ibis/impala/tests/conftest.py → ibis/backends/impala/tests/conftest.py
diff --git a/ibis/backends/impala/tests/mocks.py b/ibis/backends/impala/tests/mocks.py
diff --git a/ibis/impala/tests/test_client.py → ibis/backends/impala/tests/test_client.py b/ibis/impala/tests/test_client.py → ibis/backends/impala/tests/test_client.py
diff --git a/ibis/impala/tests/test_connection_pool.py → ...ends/impala/tests/test_connection_pool.py b/ibis/impala/tests/test_connection_pool.py → ...ends/impala/tests/test_connection_pool.py
diff --git a/ibis/impala/tests/test_ddl.py → ibis/backends/impala/tests/test_ddl.py b/ibis/impala/tests/test_ddl.py → ibis/backends/impala/tests/test_ddl.py
diff --git a/ibis/impala/tests/test_ddl_compilation.py → ...ends/impala/tests/test_ddl_compilation.py b/ibis/impala/tests/test_ddl_compilation.py → ...ends/impala/tests/test_ddl_compilation.py
diff --git a/ibis/impala/tests/test_exprs.py → ibis/backends/impala/tests/test_exprs.py b/ibis/impala/tests/test_exprs.py → ibis/backends/impala/tests/test_exprs.py
diff --git a/ibis/impala/tests/test_kudu_support.py → ...ackends/impala/tests/test_kudu_support.py b/ibis/impala/tests/test_kudu_support.py → ...ackends/impala/tests/test_kudu_support.py
diff --git a/ibis/impala/tests/test_metadata.py → ibis/backends/impala/tests/test_metadata.py b/ibis/impala/tests/test_metadata.py → ibis/backends/impala/tests/test_metadata.py
diff --git a/ibis/impala/tests/test_pandas_interop.py → ...kends/impala/tests/test_pandas_interop.py b/ibis/impala/tests/test_pandas_interop.py → ...kends/impala/tests/test_pandas_interop.py
diff --git a/ibis/impala/tests/test_parquet_ddl.py → ...backends/impala/tests/test_parquet_ddl.py b/ibis/impala/tests/test_parquet_ddl.py → ...backends/impala/tests/test_parquet_ddl.py
diff --git a/ibis/impala/tests/test_partition.py → ibis/backends/impala/tests/test_partition.py b/ibis/impala/tests/test_partition.py → ibis/backends/impala/tests/test_partition.py
diff --git a/ibis/impala/tests/test_patched.py → ibis/backends/impala/tests/test_patched.py b/ibis/impala/tests/test_patched.py → ibis/backends/impala/tests/test_patched.py
diff --git a/ibis/impala/tests/test_sql.py → ibis/backends/impala/tests/test_sql.py b/ibis/impala/tests/test_sql.py → ibis/backends/impala/tests/test_sql.py
diff --git a/ibis/impala/tests/test_udf.py → ibis/backends/impala/tests/test_udf.py b/ibis/impala/tests/test_udf.py → ibis/backends/impala/tests/test_udf.py
diff --git a/ibis/impala/tests/test_window.py → ibis/backends/impala/tests/test_window.py b/ibis/impala/tests/test_window.py → ibis/backends/impala/tests/test_window.py
diff --git a/ibis/impala/udf.py → ibis/backends/impala/udf.py b/ibis/impala/udf.py → ibis/backends/impala/udf.py
diff --git a/ibis/sql/mysql/api.py → ibis/backends/mysql/__init__.py b/ibis/sql/mysql/api.py → ibis/backends/mysql/__init__.py
diff --git a/ibis/sql/mysql/client.py → ibis/backends/mysql/client.py b/ibis/sql/mysql/client.py → ibis/backends/mysql/client.py
diff --git a/ibis/sql/mysql/compiler.py → ibis/backends/mysql/compiler.py b/ibis/sql/mysql/compiler.py → ibis/backends/mysql/compiler.py
diff --git a/ibis/omniscidb/api.py → ibis/backends/omniscidb/__init__.py b/ibis/omniscidb/api.py → ibis/backends/omniscidb/__init__.py
diff --git a/ibis/omniscidb/client.py → ibis/backends/omniscidb/client.py b/ibis/omniscidb/client.py → ibis/backends/omniscidb/client.py
diff --git a/ibis/omniscidb/compiler.py → ibis/backends/omniscidb/compiler.py b/ibis/omniscidb/compiler.py → ibis/backends/omniscidb/compiler.py
diff --git a/ibis/omniscidb/ddl.py → ibis/backends/omniscidb/ddl.py b/ibis/omniscidb/ddl.py → ibis/backends/omniscidb/ddl.py
diff --git a/ibis/backends/omniscidb/dtypes.py b/ibis/backends/omniscidb/dtypes.py
diff --git a/ibis/omniscidb/identifiers.py → ibis/backends/omniscidb/identifiers.py b/ibis/omniscidb/identifiers.py → ibis/backends/omniscidb/identifiers.py
diff --git a/ibis/omniscidb/operations.py → ibis/backends/omniscidb/operations.py b/ibis/omniscidb/operations.py → ibis/backends/omniscidb/operations.py
diff --git a/ibis/omniscidb/tests/__init__.py → ibis/backends/omniscidb/tests/__init__.py b/ibis/omniscidb/tests/__init__.py → ibis/backends/omniscidb/tests/__init__.py
diff --git a/ibis/omniscidb/tests/conftest.py → ibis/backends/omniscidb/tests/conftest.py b/ibis/omniscidb/tests/conftest.py → ibis/backends/omniscidb/tests/conftest.py
diff --git a/ibis/omniscidb/tests/test_client.py → ibis/backends/omniscidb/tests/test_client.py b/ibis/omniscidb/tests/test_client.py → ibis/backends/omniscidb/tests/test_client.py
diff --git a/ibis/omniscidb/tests/test_operations.py → ...ckends/omniscidb/tests/test_operations.py b/ibis/omniscidb/tests/test_operations.py → ...ckends/omniscidb/tests/test_operations.py
diff --git a/ibis/pandas/api.py → ibis/backends/pandas/__init__.py b/ibis/pandas/api.py → ibis/backends/pandas/__init__.py
diff --git a/ibis/pandas/aggcontext.py → ibis/backends/pandas/aggcontext.py b/ibis/pandas/aggcontext.py → ibis/backends/pandas/aggcontext.py
diff --git a/ibis/pandas/client.py → ibis/backends/pandas/client.py b/ibis/pandas/client.py → ibis/backends/pandas/client.py
diff --git a/ibis/pandas/core.py → ibis/backends/pandas/core.py b/ibis/pandas/core.py → ibis/backends/pandas/core.py
diff --git a/ibis/pandas/dispatch.py → ibis/backends/pandas/dispatch.py b/ibis/pandas/dispatch.py → ibis/backends/pandas/dispatch.py
diff --git a/ibis/backends/pandas/dispatcher.py b/ibis/backends/pandas/dispatcher.py
diff --git a/ibis/backends/pandas/execution/__init__.py b/ibis/backends/pandas/execution/__init__.py
diff --git a/ibis/pandas/execution/arrays.py → ibis/backends/pandas/execution/arrays.py b/ibis/pandas/execution/arrays.py → ibis/backends/pandas/execution/arrays.py
diff --git a/ibis/pandas/execution/constants.py → ibis/backends/pandas/execution/constants.py b/ibis/pandas/execution/constants.py → ibis/backends/pandas/execution/constants.py
diff --git a/ibis/pandas/execution/decimal.py → ibis/backends/pandas/execution/decimal.py b/ibis/pandas/execution/decimal.py → ibis/backends/pandas/execution/decimal.py
diff --git a/ibis/pandas/execution/generic.py → ibis/backends/pandas/execution/generic.py b/ibis/pandas/execution/generic.py → ibis/backends/pandas/execution/generic.py
diff --git a/ibis/pandas/execution/join.py → ibis/backends/pandas/execution/join.py b/ibis/pandas/execution/join.py → ibis/backends/pandas/execution/join.py
diff --git a/ibis/pandas/execution/maps.py → ibis/backends/pandas/execution/maps.py b/ibis/pandas/execution/maps.py → ibis/backends/pandas/execution/maps.py
diff --git a/ibis/pandas/execution/selection.py → ibis/backends/pandas/execution/selection.py b/ibis/pandas/execution/selection.py → ibis/backends/pandas/execution/selection.py
diff --git a/ibis/pandas/execution/strings.py → ibis/backends/pandas/execution/strings.py b/ibis/pandas/execution/strings.py → ibis/backends/pandas/execution/strings.py
diff --git a/ibis/pandas/execution/structs.py → ibis/backends/pandas/execution/structs.py b/ibis/pandas/execution/structs.py → ibis/backends/pandas/execution/structs.py
diff --git a/ibis/pandas/execution/temporal.py → ibis/backends/pandas/execution/temporal.py b/ibis/pandas/execution/temporal.py → ibis/backends/pandas/execution/temporal.py
diff --git a/ibis/backends/pandas/execution/timecontext.py b/ibis/backends/pandas/execution/timecontext.py
diff --git a/ibis/backends/pandas/execution/util.py b/ibis/backends/pandas/execution/util.py
diff --git a/ibis/pandas/execution/window.py → ibis/backends/pandas/execution/window.py b/ibis/pandas/execution/window.py → ibis/backends/pandas/execution/window.py
diff --git a/ibis/hive/__init__.py → ibis/backends/pandas/tests/__init__.py b/ibis/hive/__init__.py → ibis/backends/pandas/tests/__init__.py
diff --git a/ibis/hive/tests/__init__.py → ...ckends/pandas/tests/execution/__init__.py b/ibis/hive/tests/__init__.py → ...ckends/pandas/tests/execution/__init__.py
diff --git a/ibis/pandas/execution/tests/conftest.py → ...ckends/pandas/tests/execution/conftest.py b/ibis/pandas/execution/tests/conftest.py → ...ckends/pandas/tests/execution/conftest.py
diff --git a/ibis/pandas/execution/tests/test_arrays.py → ...nds/pandas/tests/execution/test_arrays.py b/ibis/pandas/execution/tests/test_arrays.py → ...nds/pandas/tests/execution/test_arrays.py
diff --git a/ibis/pandas/execution/tests/test_cast.py → ...kends/pandas/tests/execution/test_cast.py b/ibis/pandas/execution/tests/test_cast.py → ...kends/pandas/tests/execution/test_cast.py
diff --git a/.../pandas/execution/tests/test_functions.py → .../pandas/tests/execution/test_functions.py b/.../pandas/execution/tests/test_functions.py → .../pandas/tests/execution/test_functions.py
diff --git a/ibis/pandas/execution/tests/test_join.py → ...kends/pandas/tests/execution/test_join.py b/ibis/pandas/execution/tests/test_join.py → ...kends/pandas/tests/execution/test_join.py
diff --git a/ibis/pandas/execution/tests/test_maps.py → ...kends/pandas/tests/execution/test_maps.py b/ibis/pandas/execution/tests/test_maps.py → ...kends/pandas/tests/execution/test_maps.py
diff --git a/...pandas/execution/tests/test_operations.py → ...pandas/tests/execution/test_operations.py b/...pandas/execution/tests/test_operations.py → ...pandas/tests/execution/test_operations.py
diff --git a/ibis/pandas/execution/tests/test_strings.py → ...ds/pandas/tests/execution/test_strings.py b/ibis/pandas/execution/tests/test_strings.py → ...ds/pandas/tests/execution/test_strings.py
diff --git a/ibis/pandas/execution/tests/test_structs.py → ...ds/pandas/tests/execution/test_structs.py b/ibis/pandas/execution/tests/test_structs.py → ...ds/pandas/tests/execution/test_structs.py
diff --git a/ibis/pandas/execution/tests/test_temporal.py → ...s/pandas/tests/execution/test_temporal.py b/ibis/pandas/execution/tests/test_temporal.py → ...s/pandas/tests/execution/test_temporal.py
diff --git a/ibis/backends/pandas/tests/execution/test_timecontext.py b/ibis/backends/pandas/tests/execution/test_timecontext.py
diff --git a/ibis/pandas/execution/tests/test_window.py → ...nds/pandas/tests/execution/test_window.py b/ibis/pandas/execution/tests/test_window.py → ...nds/pandas/tests/execution/test_window.py
diff --git a/ibis/backends/pandas/tests/test_aggcontext.py b/ibis/backends/pandas/tests/test_aggcontext.py
diff --git a/ibis/pandas/tests/test_client.py → ibis/backends/pandas/tests/test_client.py b/ibis/pandas/tests/test_client.py → ibis/backends/pandas/tests/test_client.py
diff --git a/ibis/pandas/tests/test_core.py → ibis/backends/pandas/tests/test_core.py b/ibis/pandas/tests/test_core.py → ibis/backends/pandas/tests/test_core.py
diff --git a/ibis/pandas/tests/test_datatypes.py → ibis/backends/pandas/tests/test_datatypes.py b/ibis/pandas/tests/test_datatypes.py → ibis/backends/pandas/tests/test_datatypes.py
diff --git a/ibis/backends/pandas/tests/test_dispatcher.py b/ibis/backends/pandas/tests/test_dispatcher.py
diff --git a/ibis/pandas/tests/test_schema.py → ibis/backends/pandas/tests/test_schema.py b/ibis/pandas/tests/test_schema.py → ibis/backends/pandas/tests/test_schema.py
diff --git a/ibis/pandas/tests/test_udf.py → ibis/backends/pandas/tests/test_udf.py b/ibis/pandas/tests/test_udf.py → ibis/backends/pandas/tests/test_udf.py
diff --git a/ibis/backends/pandas/trace.py b/ibis/backends/pandas/trace.py
diff --git a/ibis/backends/pandas/udf.py b/ibis/backends/pandas/udf.py
diff --git a/ibis/file/parquet.py → ibis/backends/parquet/__init__.py b/ibis/file/parquet.py → ibis/backends/parquet/__init__.py
diff --git a/ibis/backends/parquet/tests/conftest.py b/ibis/backends/parquet/tests/conftest.py
diff --git a/ibis/file/tests/test_parquet.py → ibis/backends/parquet/tests/test_parquet.py b/ibis/file/tests/test_parquet.py → ibis/backends/parquet/tests/test_parquet.py
diff --git a/ibis/sql/postgres/api.py → ibis/backends/postgres/__init__.py b/ibis/sql/postgres/api.py → ibis/backends/postgres/__init__.py
diff --git a/ibis/sql/postgres/client.py → ibis/backends/postgres/client.py b/ibis/sql/postgres/client.py → ibis/backends/postgres/client.py
diff --git a/ibis/sql/postgres/compiler.py → ibis/backends/postgres/compiler.py b/ibis/sql/postgres/compiler.py → ibis/backends/postgres/compiler.py
diff --git a/ibis/impala/__init__.py → ibis/backends/postgres/tests/__init__.py b/ibis/impala/__init__.py → ibis/backends/postgres/tests/__init__.py
diff --git a/ibis/sql/postgres/tests/conftest.py → ibis/backends/postgres/tests/conftest.py b/ibis/sql/postgres/tests/conftest.py → ibis/backends/postgres/tests/conftest.py
diff --git a/ibis/sql/postgres/tests/test_client.py → ibis/backends/postgres/tests/test_client.py b/ibis/sql/postgres/tests/test_client.py → ibis/backends/postgres/tests/test_client.py
diff --git a/ibis/sql/postgres/tests/test_functions.py → ...backends/postgres/tests/test_functions.py b/ibis/sql/postgres/tests/test_functions.py → ...backends/postgres/tests/test_functions.py
diff --git a/ibis/sql/postgres/tests/test_postgis.py → ibis/backends/postgres/tests/test_postgis.py b/ibis/sql/postgres/tests/test_postgis.py → ibis/backends/postgres/tests/test_postgis.py
diff --git a/ibis/sql/postgres/tests/test_udf.py → ibis/backends/postgres/tests/test_udf.py b/ibis/sql/postgres/tests/test_udf.py → ibis/backends/postgres/tests/test_udf.py
diff --git a/ibis/backends/postgres/udf/__init__.py b/ibis/backends/postgres/udf/__init__.py
diff --git a/ibis/sql/postgres/udf/api.py → ibis/backends/postgres/udf/api.py b/ibis/sql/postgres/udf/api.py → ibis/backends/postgres/udf/api.py
diff --git a/ibis/pyspark/api.py → ibis/backends/pyspark/__init__.py b/ibis/pyspark/api.py → ibis/backends/pyspark/__init__.py
diff --git a/ibis/pyspark/client.py → ibis/backends/pyspark/client.py b/ibis/pyspark/client.py → ibis/backends/pyspark/client.py
diff --git a/ibis/backends/pyspark/compiler.py b/ibis/backends/pyspark/compiler.py
diff --git a/ibis/pyspark/operations.py → ibis/backends/pyspark/operations.py b/ibis/pyspark/operations.py → ibis/backends/pyspark/operations.py
diff --git a/ibis/backends/pyspark/tests/conftest.py b/ibis/backends/pyspark/tests/conftest.py
diff --git a/ibis/pyspark/tests/test_array.py → ibis/backends/pyspark/tests/test_array.py b/ibis/pyspark/tests/test_array.py → ibis/backends/pyspark/tests/test_array.py
diff --git a/ibis/pyspark/tests/test_basic.py → ibis/backends/pyspark/tests/test_basic.py b/ibis/pyspark/tests/test_basic.py → ibis/backends/pyspark/tests/test_basic.py
diff --git a/ibis/backends/pyspark/tests/test_null.py b/ibis/backends/pyspark/tests/test_null.py
diff --git a/ibis/backends/pyspark/tests/test_timecontext.py b/ibis/backends/pyspark/tests/test_timecontext.py
diff --git a/ibis/backends/pyspark/tests/test_window.py b/ibis/backends/pyspark/tests/test_window.py
diff --git a/ibis/backends/pyspark/tests/test_window_context_adjustment.py b/ibis/backends/pyspark/tests/test_window_context_adjustment.py
diff --git a/ibis/backends/pyspark/timecontext.py b/ibis/backends/pyspark/timecontext.py
diff --git a/ibis/spark/api.py → ibis/backends/spark/__init__.py b/ibis/spark/api.py → ibis/backends/spark/__init__.py
diff --git a/ibis/spark/client.py → ibis/backends/spark/client.py b/ibis/spark/client.py → ibis/backends/spark/client.py
diff --git a/ibis/spark/compiler.py → ibis/backends/spark/compiler.py b/ibis/spark/compiler.py → ibis/backends/spark/compiler.py
diff --git a/ibis/spark/datatypes.py → ibis/backends/spark/datatypes.py b/ibis/spark/datatypes.py → ibis/backends/spark/datatypes.py
diff --git a/ibis/spark/ddl.py → ibis/backends/spark/ddl.py b/ibis/spark/ddl.py → ibis/backends/spark/ddl.py
diff --git a/ibis/impala/tests/__init__.py → ibis/backends/spark/tests/__init__.py b/ibis/impala/tests/__init__.py → ibis/backends/spark/tests/__init__.py
diff --git a/ibis/spark/tests/conftest.py → ibis/backends/spark/tests/conftest.py b/ibis/spark/tests/conftest.py → ibis/backends/spark/tests/conftest.py
diff --git a/ibis/spark/tests/test_api.py → ibis/backends/spark/tests/test_api.py b/ibis/spark/tests/test_api.py → ibis/backends/spark/tests/test_api.py
diff --git a/ibis/spark/tests/test_client.py → ibis/backends/spark/tests/test_client.py b/ibis/spark/tests/test_client.py → ibis/backends/spark/tests/test_client.py
diff --git a/ibis/spark/tests/test_ddl.py → ibis/backends/spark/tests/test_ddl.py b/ibis/spark/tests/test_ddl.py → ibis/backends/spark/tests/test_ddl.py
diff --git a/ibis/spark/tests/test_ddl_compilation.py → ...kends/spark/tests/test_ddl_compilation.py b/ibis/spark/tests/test_ddl_compilation.py → ...kends/spark/tests/test_ddl_compilation.py
diff --git a/ibis/spark/tests/test_numeric.py → ibis/backends/spark/tests/test_numeric.py b/ibis/spark/tests/test_numeric.py → ibis/backends/spark/tests/test_numeric.py
diff --git a/ibis/spark/tests/test_udf.py → ibis/backends/spark/tests/test_udf.py b/ibis/spark/tests/test_udf.py → ibis/backends/spark/tests/test_udf.py
diff --git a/ibis/spark/udf.py → ibis/backends/spark/udf.py b/ibis/spark/udf.py → ibis/backends/spark/udf.py
diff --git a/ibis/sql/sqlite/api.py → ibis/backends/sqlite/__init__.py b/ibis/sql/sqlite/api.py → ibis/backends/sqlite/__init__.py
diff --git a/ibis/sql/sqlite/client.py → ibis/backends/sqlite/client.py b/ibis/sql/sqlite/client.py → ibis/backends/sqlite/client.py
diff --git a/ibis/sql/sqlite/compiler.py → ibis/backends/sqlite/compiler.py b/ibis/sql/sqlite/compiler.py → ibis/backends/sqlite/compiler.py
diff --git a/ibis/pandas/__init__.py → ibis/backends/sqlite/tests/__init__.py b/ibis/pandas/__init__.py → ibis/backends/sqlite/tests/__init__.py
diff --git a/ibis/sql/sqlite/tests/conftest.py → ibis/backends/sqlite/tests/conftest.py b/ibis/sql/sqlite/tests/conftest.py → ibis/backends/sqlite/tests/conftest.py
diff --git a/ibis/sql/sqlite/tests/test_client.py → ibis/backends/sqlite/tests/test_client.py b/ibis/sql/sqlite/tests/test_client.py → ibis/backends/sqlite/tests/test_client.py
diff --git a/ibis/sql/sqlite/tests/test_functions.py → ibis/backends/sqlite/tests/test_functions.py b/ibis/sql/sqlite/tests/test_functions.py → ibis/backends/sqlite/tests/test_functions.py
diff --git a/ibis/bigquery/__init__.py b/ibis/bigquery/__init__.py
diff --git a/ibis/bigquery/udf/__init__.py b/ibis/bigquery/udf/__init__.py
diff --git a/ibis/client.py b/ibis/client.py
diff --git a/ibis/compat.py b/ibis/compat.py
diff --git a/ibis/config.py b/ibis/config.py
diff --git a/ibis/config_init.py b/ibis/config_init.py
diff --git a/ibis/expr/api.py b/ibis/expr/api.py
diff --git a/ibis/expr/datatypes.py b/ibis/expr/datatypes.py
diff --git a/ibis/expr/format.py b/ibis/expr/format.py
diff --git a/ibis/expr/operations.py b/ibis/expr/operations.py
diff --git a/ibis/expr/random.py b/ibis/expr/random.py
diff --git a/ibis/expr/rules.py b/ibis/expr/rules.py
diff --git a/ibis/expr/scope.py b/ibis/expr/scope.py
diff --git a/ibis/expr/timecontext.py b/ibis/expr/timecontext.py
diff --git a/ibis/expr/types.py b/ibis/expr/types.py
diff --git a/ibis/expr/typing.py b/ibis/expr/typing.py
diff --git a/ibis/expr/window.py b/ibis/expr/window.py
diff --git a/ibis/file/tests/conftest.py b/ibis/file/tests/conftest.py
diff --git a/ibis/filesystems.py b/ibis/filesystems.py
diff --git a/ibis/omniscidb/__init__.py b/ibis/omniscidb/__init__.py
diff --git a/ibis/pandas/execution/__init__.py b/ibis/pandas/execution/__init__.py
diff --git a/ibis/pandas/execution/util.py b/ibis/pandas/execution/util.py
diff --git a/ibis/pandas/udf.py b/ibis/pandas/udf.py
diff --git a/ibis/pyspark/__init__.py b/ibis/pyspark/__init__.py
diff --git a/ibis/pyspark/compiler.py b/ibis/pyspark/compiler.py
diff --git a/ibis/pyspark/tests/conftest.py b/ibis/pyspark/tests/conftest.py
diff --git a/ibis/spark/__init__.py b/ibis/spark/__init__.py
diff --git a/ibis/spark/tests/__init__.py b/ibis/spark/tests/__init__.py
diff --git a/ibis/sql/__init__.py b/ibis/sql/__init__.py
diff --git a/ibis/sql/mysql/__init__.py b/ibis/sql/mysql/__init__.py
diff --git a/ibis/sql/postgres/__init__.py b/ibis/sql/postgres/__init__.py
diff --git a/ibis/sql/postgres/tests/__init__.py b/ibis/sql/postgres/tests/__init__.py
diff --git a/ibis/sql/postgres/udf/__init__.py b/ibis/sql/postgres/udf/__init__.py
diff --git a/ibis/sql/presto/__init__.py b/ibis/sql/presto/__init__.py
diff --git a/ibis/sql/presto/tests/__init__.py b/ibis/sql/presto/tests/__init__.py
diff --git a/ibis/sql/redshift/__init__.py b/ibis/sql/redshift/__init__.py
diff --git a/ibis/sql/redshift/tests/__init__.py b/ibis/sql/redshift/tests/__init__.py
diff --git a/ibis/sql/sqlite/__init__.py b/ibis/sql/sqlite/__init__.py
diff --git a/ibis/sql/sqlite/tests/__init__.py b/ibis/sql/sqlite/tests/__init__.py
diff --git a/ibis/sql/tests/__init__.py b/ibis/sql/tests/__init__.py
diff --git a/ibis/sql/vertica/__init__.py b/ibis/sql/vertica/__init__.py
diff --git a/ibis/sql/vertica/tests/__init__.py b/ibis/sql/vertica/tests/__init__.py
diff --git a/ibis/tests/all/conftest.py b/ibis/tests/all/conftest.py
diff --git a/ibis/tests/all/test_aggregation.py b/ibis/tests/all/test_aggregation.py
diff --git a/ibis/tests/all/test_array.py b/ibis/tests/all/test_array.py
diff --git a/ibis/tests/all/test_client.py b/ibis/tests/all/test_client.py
diff --git a/ibis/tests/all/test_column.py b/ibis/tests/all/test_column.py
diff --git a/ibis/tests/all/test_generic.py b/ibis/tests/all/test_generic.py
diff --git a/ibis/tests/all/test_geospatial.py b/ibis/tests/all/test_geospatial.py
diff --git a/ibis/tests/all/test_json.py b/ibis/tests/all/test_json.py
diff --git a/ibis/tests/all/test_nettypes.py b/ibis/tests/all/test_nettypes.py
diff --git a/ibis/tests/all/test_numeric.py b/ibis/tests/all/test_numeric.py
diff --git a/ibis/tests/all/test_string.py b/ibis/tests/all/test_string.py
diff --git a/ibis/tests/all/test_temporal.py b/ibis/tests/all/test_temporal.py
diff --git a/ibis/tests/all/test_union.py b/ibis/tests/all/test_union.py
diff --git a/ibis/tests/all/test_vectorized_udf.py b/ibis/tests/all/test_vectorized_udf.py
diff --git a/ibis/tests/all/test_window.py b/ibis/tests/all/test_window.py
diff --git a/ibis/tests/backends.py b/ibis/tests/backends.py
diff --git a/ibis/pandas/execution/tests/__init__.py → ibis/tests/expr/__init__.py b/ibis/pandas/execution/tests/__init__.py → ibis/tests/expr/__init__.py
diff --git a/ibis/expr/tests/conftest.py → ibis/tests/expr/conftest.py b/ibis/expr/tests/conftest.py → ibis/tests/expr/conftest.py
diff --git a/ibis/expr/tests/mocks.py → ibis/tests/expr/mocks.py b/ibis/expr/tests/mocks.py → ibis/tests/expr/mocks.py
diff --git a/ibis/expr/tests/test_analysis.py → ibis/tests/expr/test_analysis.py b/ibis/expr/tests/test_analysis.py → ibis/tests/expr/test_analysis.py
diff --git a/ibis/expr/tests/test_analytics.py → ibis/tests/expr/test_analytics.py b/ibis/expr/tests/test_analytics.py → ibis/tests/expr/test_analytics.py
diff --git a/ibis/expr/tests/test_array.py → ibis/tests/expr/test_array.py b/ibis/expr/tests/test_array.py → ibis/tests/expr/test_array.py
diff --git a/ibis/expr/tests/test_case.py → ibis/tests/expr/test_case.py b/ibis/expr/tests/test_case.py → ibis/tests/expr/test_case.py
diff --git a/ibis/expr/tests/test_datatypes.py → ibis/tests/expr/test_datatypes.py b/ibis/expr/tests/test_datatypes.py → ibis/tests/expr/test_datatypes.py
diff --git a/ibis/expr/tests/test_decimal.py → ibis/tests/expr/test_decimal.py b/ibis/expr/tests/test_decimal.py → ibis/tests/expr/test_decimal.py
diff --git a/ibis/expr/tests/test_format.py → ibis/tests/expr/test_format.py b/ibis/expr/tests/test_format.py → ibis/tests/expr/test_format.py
diff --git a/ibis/expr/tests/test_geospatial.py → ibis/tests/expr/test_geospatial.py b/ibis/expr/tests/test_geospatial.py → ibis/tests/expr/test_geospatial.py
diff --git a/ibis/expr/tests/test_interactive.py → ibis/tests/expr/test_interactive.py b/ibis/expr/tests/test_interactive.py → ibis/tests/expr/test_interactive.py
diff --git a/ibis/expr/tests/test_lineage.py → ibis/tests/expr/test_lineage.py b/ibis/expr/tests/test_lineage.py → ibis/tests/expr/test_lineage.py
diff --git a/ibis/tests/expr/test_literal.py b/ibis/tests/expr/test_literal.py
diff --git a/ibis/expr/tests/test_operations.py → ibis/tests/expr/test_operations.py b/ibis/expr/tests/test_operations.py → ibis/tests/expr/test_operations.py
diff --git a/ibis/expr/tests/test_pipe.py → ibis/tests/expr/test_pipe.py b/ibis/expr/tests/test_pipe.py → ibis/tests/expr/test_pipe.py
diff --git a/ibis/expr/tests/test_rules.py → ibis/tests/expr/test_rules.py b/ibis/expr/tests/test_rules.py → ibis/tests/expr/test_rules.py
diff --git a/ibis/expr/tests/test_schema.py → ibis/tests/expr/test_schema.py b/ibis/expr/tests/test_schema.py → ibis/tests/expr/test_schema.py
diff --git a/ibis/expr/tests/test_signature.py → ibis/tests/expr/test_signature.py b/ibis/expr/tests/test_signature.py → ibis/tests/expr/test_signature.py
diff --git a/ibis/expr/tests/test_sql_builtins.py → ibis/tests/expr/test_sql_builtins.py b/ibis/expr/tests/test_sql_builtins.py → ibis/tests/expr/test_sql_builtins.py
diff --git a/ibis/expr/tests/test_string.py → ibis/tests/expr/test_string.py b/ibis/expr/tests/test_string.py → ibis/tests/expr/test_string.py
diff --git a/ibis/expr/tests/test_table.py → ibis/tests/expr/test_table.py b/ibis/expr/tests/test_table.py → ibis/tests/expr/test_table.py
diff --git a/ibis/expr/tests/test_temporal.py → ibis/tests/expr/test_temporal.py b/ibis/expr/tests/test_temporal.py → ibis/tests/expr/test_temporal.py
diff --git a/ibis/expr/tests/test_timestamp.py → ibis/tests/expr/test_timestamp.py b/ibis/expr/tests/test_timestamp.py → ibis/tests/expr/test_timestamp.py
diff --git a/ibis/expr/tests/test_value_exprs.py → ibis/tests/expr/test_value_exprs.py b/ibis/expr/tests/test_value_exprs.py → ibis/tests/expr/test_value_exprs.py
diff --git a/ibis/expr/tests/test_visualize.py → ibis/tests/expr/test_visualize.py b/ibis/expr/tests/test_visualize.py → ibis/tests/expr/test_visualize.py
diff --git a/ibis/expr/tests/test_window_functions.py → ibis/tests/expr/test_window_functions.py b/ibis/expr/tests/test_window_functions.py → ibis/tests/expr/test_window_functions.py
diff --git a/ibis/pandas/tests/__init__.py → ibis/tests/sql/__init__.py b/ibis/pandas/tests/__init__.py → ibis/tests/sql/__init__.py
diff --git a/ibis/sql/tests/test_compiler.py → ibis/tests/sql/test_compiler.py b/ibis/sql/tests/test_compiler.py → ibis/tests/sql/test_compiler.py
diff --git a/ibis/sql/tests/test_sqlalchemy.py → ibis/tests/sql/test_sqlalchemy.py b/ibis/sql/tests/test_sqlalchemy.py → ibis/tests/sql/test_sqlalchemy.py
diff --git a/ibis/tests/test_filesystems.py b/ibis/tests/test_filesystems.py
diff --git a/ibis/udf/validate.py b/ibis/udf/validate.py
diff --git a/ibis/udf/vectorized.py b/ibis/udf/vectorized.py
diff --git a/ibis/util.py b/ibis/util.py
diff --git a/setup.cfg b/setup.cfg
diff --git a/setup.py b/setup.py