diff --git a/.coveragerc b/.coveragerc
index 32fdaa09..303a6ecb 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -18,6 +18,7 @@
 [run]
 branch = True
 omit =
+  google/__init__.py
   sqlalchemy_bigquery/requirements.py
 
 [report]
diff --git a/.github/.OwlBot.lock.yaml b/.github/.OwlBot.lock.yaml
index 7b6cc310..cb89b2e3 100644
--- a/.github/.OwlBot.lock.yaml
+++ b/.github/.OwlBot.lock.yaml
@@ -1,3 +1,3 @@
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-  digest: sha256:a3a85c2e0b3293068e47b1635b178f7e3d3845f2cfb8722de6713d4bbafdcd1d
+  digest: sha256:ec49167c606648a063d1222220b48119c912562849a0528f35bfb592a9f72737
diff --git a/.kokoro/docs/common.cfg b/.kokoro/docs/common.cfg
index 79b76dcd..07ec62b9 100644
--- a/.kokoro/docs/common.cfg
+++ b/.kokoro/docs/common.cfg
@@ -30,7 +30,9 @@ env_vars: {
 
 env_vars: {
     key: "V2_STAGING_BUCKET"
-    value: "docs-staging-v2"
+    # Push non-cloud library docs to `docs-staging-v2-staging` instead of the
+    # Cloud RAD bucket `docs-staging-v2`
+    value: "docs-staging-v2-staging"
 }
 
 # It will upload the docker image after successful builds.
diff --git a/.kokoro/samples/lint/common.cfg b/.kokoro/samples/lint/common.cfg
index 6b2a5f39..d568248d 100644
--- a/.kokoro/samples/lint/common.cfg
+++ b/.kokoro/samples/lint/common.cfg
@@ -31,4 +31,4 @@ gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
 # Use the trampoline script to run in docker.
-build_file: "python-bigquery-sqlalchemy/.kokoro/trampoline.sh"
\ No newline at end of file
+build_file: "python-bigquery-sqlalchemy/.kokoro/trampoline_v2.sh"
\ No newline at end of file
diff --git a/.kokoro/samples/python3.10/common.cfg b/.kokoro/samples/python3.10/common.cfg
new file mode 100644
index 00000000..925c60c9
--- /dev/null
+++ b/.kokoro/samples/python3.10/common.cfg
@@ -0,0 +1,40 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Build logs will be here
+action {
+  define_artifacts {
+    regex: "**/*sponge_log.xml"
+  }
+}
+
+# Specify which tests to run
+env_vars: {
+    key: "RUN_TESTS_SESSION"
+    value: "py-3.10"
+}
+
+# Declare build specific Cloud project.
+env_vars: {
+    key: "BUILD_SPECIFIC_GCLOUD_PROJECT"
+    value: "python-docs-samples-tests-310"
+}
+
+env_vars: {
+    key: "TRAMPOLINE_BUILD_FILE"
+    value: "github/python-bigquery-sqlalchemy/.kokoro/test-samples.sh"
+}
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+    key: "TRAMPOLINE_IMAGE"
+    value: "gcr.io/cloud-devrel-kokoro-resources/python-samples-testing-docker"
+}
+
+# Download secrets for samples
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
+
+# Download trampoline resources.
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
+
+# Use the trampoline script to run in docker.
+build_file: "python-bigquery-sqlalchemy/.kokoro/trampoline_v2.sh"
\ No newline at end of file
diff --git a/.kokoro/samples/python3.10/continuous.cfg b/.kokoro/samples/python3.10/continuous.cfg
new file mode 100644
index 00000000..a1c8d975
--- /dev/null
+++ b/.kokoro/samples/python3.10/continuous.cfg
@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "INSTALL_LIBRARY_FROM_SOURCE"
+    value: "True"
+}
\ No newline at end of file
diff --git a/.kokoro/samples/python3.10/periodic-head.cfg b/.kokoro/samples/python3.10/periodic-head.cfg
new file mode 100644
index 00000000..abf3481d
--- /dev/null
+++ b/.kokoro/samples/python3.10/periodic-head.cfg
@@ -0,0 +1,11 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "INSTALL_LIBRARY_FROM_SOURCE"
+    value: "True"
+}
+
+env_vars: {
+    key: "TRAMPOLINE_BUILD_FILE"
+    value: "github/python-bigquery-sqlalchemy/.kokoro/test-samples-against-head.sh"
+}
diff --git a/.kokoro/samples/python3.10/periodic.cfg b/.kokoro/samples/python3.10/periodic.cfg
new file mode 100644
index 00000000..71cd1e59
--- /dev/null
+++ b/.kokoro/samples/python3.10/periodic.cfg
@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "INSTALL_LIBRARY_FROM_SOURCE"
+    value: "False"
+}
diff --git a/.kokoro/samples/python3.10/presubmit.cfg b/.kokoro/samples/python3.10/presubmit.cfg
new file mode 100644
index 00000000..a1c8d975
--- /dev/null
+++ b/.kokoro/samples/python3.10/presubmit.cfg
@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "INSTALL_LIBRARY_FROM_SOURCE"
+    value: "True"
+}
\ No newline at end of file
diff --git a/.kokoro/samples/python3.6/common.cfg b/.kokoro/samples/python3.6/common.cfg
index 3000e725..5cfb556d 100644
--- a/.kokoro/samples/python3.6/common.cfg
+++ b/.kokoro/samples/python3.6/common.cfg
@@ -37,4 +37,4 @@ gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
 # Use the trampoline script to run in docker.
-build_file: "python-bigquery-sqlalchemy/.kokoro/trampoline.sh"
\ No newline at end of file
+build_file: "python-bigquery-sqlalchemy/.kokoro/trampoline_v2.sh"
\ No newline at end of file
diff --git a/.kokoro/samples/python3.6/periodic.cfg b/.kokoro/samples/python3.6/periodic.cfg
index 50fec964..71cd1e59 100644
--- a/.kokoro/samples/python3.6/periodic.cfg
+++ b/.kokoro/samples/python3.6/periodic.cfg
@@ -3,4 +3,4 @@
 env_vars: {
     key: "INSTALL_LIBRARY_FROM_SOURCE"
     value: "False"
-}
\ No newline at end of file
+}
diff --git a/.kokoro/samples/python3.7/common.cfg b/.kokoro/samples/python3.7/common.cfg
index b3f94782..e5fe0226 100644
--- a/.kokoro/samples/python3.7/common.cfg
+++ b/.kokoro/samples/python3.7/common.cfg
@@ -37,4 +37,4 @@ gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
 # Use the trampoline script to run in docker.
-build_file: "python-bigquery-sqlalchemy/.kokoro/trampoline.sh"
\ No newline at end of file
+build_file: "python-bigquery-sqlalchemy/.kokoro/trampoline_v2.sh"
\ No newline at end of file
diff --git a/.kokoro/samples/python3.7/periodic.cfg b/.kokoro/samples/python3.7/periodic.cfg
index 50fec964..71cd1e59 100644
--- a/.kokoro/samples/python3.7/periodic.cfg
+++ b/.kokoro/samples/python3.7/periodic.cfg
@@ -3,4 +3,4 @@
 env_vars: {
     key: "INSTALL_LIBRARY_FROM_SOURCE"
     value: "False"
-}
\ No newline at end of file
+}
diff --git a/.kokoro/samples/python3.8/common.cfg b/.kokoro/samples/python3.8/common.cfg
index 6a5ffade..e8cc035c 100644
--- a/.kokoro/samples/python3.8/common.cfg
+++ b/.kokoro/samples/python3.8/common.cfg
@@ -37,4 +37,4 @@ gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
 # Use the trampoline script to run in docker.
-build_file: "python-bigquery-sqlalchemy/.kokoro/trampoline.sh"
\ No newline at end of file
+build_file: "python-bigquery-sqlalchemy/.kokoro/trampoline_v2.sh"
\ No newline at end of file
diff --git a/.kokoro/samples/python3.8/periodic.cfg b/.kokoro/samples/python3.8/periodic.cfg
index 50fec964..71cd1e59 100644
--- a/.kokoro/samples/python3.8/periodic.cfg
+++ b/.kokoro/samples/python3.8/periodic.cfg
@@ -3,4 +3,4 @@
 env_vars: {
     key: "INSTALL_LIBRARY_FROM_SOURCE"
     value: "False"
-}
\ No newline at end of file
+}
diff --git a/.kokoro/samples/python3.9/common.cfg b/.kokoro/samples/python3.9/common.cfg
index 7e1b46d3..692eb211 100644
--- a/.kokoro/samples/python3.9/common.cfg
+++ b/.kokoro/samples/python3.9/common.cfg
@@ -37,4 +37,4 @@ gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
 # Use the trampoline script to run in docker.
-build_file: "python-bigquery-sqlalchemy/.kokoro/trampoline.sh"
\ No newline at end of file
+build_file: "python-bigquery-sqlalchemy/.kokoro/trampoline_v2.sh"
\ No newline at end of file
diff --git a/.kokoro/samples/python3.9/periodic.cfg b/.kokoro/samples/python3.9/periodic.cfg
index 50fec964..71cd1e59 100644
--- a/.kokoro/samples/python3.9/periodic.cfg
+++ b/.kokoro/samples/python3.9/periodic.cfg
@@ -3,4 +3,4 @@
 env_vars: {
     key: "INSTALL_LIBRARY_FROM_SOURCE"
     value: "False"
-}
\ No newline at end of file
+}
diff --git a/.kokoro/test-samples-against-head.sh b/.kokoro/test-samples-against-head.sh
index a62db989..ba3a707b 100755
--- a/.kokoro/test-samples-against-head.sh
+++ b/.kokoro/test-samples-against-head.sh
@@ -23,6 +23,4 @@ set -eo pipefail
 # Enables `**` to include files nested inside sub-folders
 shopt -s globstar
 
-cd github/python-bigquery-sqlalchemy
-
 exec .kokoro/test-samples-impl.sh
diff --git a/.kokoro/test-samples.sh b/.kokoro/test-samples.sh
index f7713a95..11c042d3 100755
--- a/.kokoro/test-samples.sh
+++ b/.kokoro/test-samples.sh
@@ -24,8 +24,6 @@ set -eo pipefail
 # Enables `**` to include files nested inside sub-folders
 shopt -s globstar
 
-cd github/python-bigquery-sqlalchemy
-
 # Run periodic samples tests at latest release
 if [[ $KOKORO_BUILD_ARTIFACTS_SUBDIR = *"periodic"* ]]; then
     # preserving the test runner implementation.
diff --git a/.repo-metadata.json b/.repo-metadata.json
index ae545b37..e551b994 100644
--- a/.repo-metadata.json
+++ b/.repo-metadata.json
@@ -1,12 +1,13 @@
 {
-  "name": "sqlalchemy-bigquery",
-  "name_pretty": "SQLAlchemy dialect for BigQuery",
-  "client_documentation":
-    "https://googleapis.dev/python/sqlalchemy-bigquery/latest/index.html",
-  "release_level": "beta",
-  "language": "python",
-  "library_type": "INTEGRATION",
-  "repo": "googleapis/python-bigquery-sqlalchemy",
-  "distribution_name": "sqlalchemy-bigquery",
-  "api_id": "bigquery.googleapis.com"
+    "name": "sqlalchemy-bigquery",
+    "name_pretty": "SQLAlchemy dialect for BigQuery",
+    "client_documentation": "https://googleapis.dev/python/sqlalchemy-bigquery/latest/index.html",
+    "release_level": "beta",
+    "language": "python",
+    "library_type": "INTEGRATION",
+    "repo": "googleapis/python-bigquery-sqlalchemy",
+    "distribution_name": "sqlalchemy-bigquery",
+    "api_id": "bigquery.googleapis.com",
+    "default_version": "",
+    "codeowner_team": "@googleapis/api-bigquery"
 }
diff --git a/.trampolinerc b/.trampolinerc
index 383b6ec8..0eee72ab 100644
--- a/.trampolinerc
+++ b/.trampolinerc
@@ -16,15 +16,26 @@
 
 # Add required env vars here.
 required_envvars+=(
-    "STAGING_BUCKET"
-    "V2_STAGING_BUCKET"
 )
 
 # Add env vars which are passed down into the container here.
 pass_down_envvars+=(
+    "NOX_SESSION"
+    ###############
+    # Docs builds
+    ###############
     "STAGING_BUCKET"
     "V2_STAGING_BUCKET"
-    "NOX_SESSION"
+    ##################
+    # Samples builds
+    ##################
+    "INSTALL_LIBRARY_FROM_SOURCE"
+    "RUN_TESTS_SESSION"
+    "BUILD_SPECIFIC_GCLOUD_PROJECT"
+    # Target directories.
+    "RUN_TESTS_DIRS"
+    # The nox session to run.
+    "RUN_TESTS_SESSION"
 )
 
 # Prevent unintentional override on the default image.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 74b032b0..8495dff3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,15 @@ Older versions of this project were distributed as [pybigquery][0].
 [2]: https://pypi.org/project/pybigquery/#history
 
 
+### [1.2.1](https://www.github.com/googleapis/python-bigquery-sqlalchemy/compare/v1.2.0...v1.2.1) (2021-10-27)
+
+
+### Bug Fixes
+
+* avoid creating aliases for already-known tables ([#361](https://www.github.com/googleapis/python-bigquery-sqlalchemy/issues/361)) ([1ce4e14](https://www.github.com/googleapis/python-bigquery-sqlalchemy/commit/1ce4e14c81a4b378dfcfba808507e6c545f34841))
+* avoid scribbling on (reused) bind param ([#365](https://www.github.com/googleapis/python-bigquery-sqlalchemy/issues/365)) ([d28cac5](https://www.github.com/googleapis/python-bigquery-sqlalchemy/commit/d28cac5864f183c0ca503854973d837b17783d52))
+* include external tables in 'get_table_names' ([#363](https://www.github.com/googleapis/python-bigquery-sqlalchemy/issues/363)) ([5e158fe](https://www.github.com/googleapis/python-bigquery-sqlalchemy/commit/5e158fe8bb2394369c020337092b5cfdb01880e0))
+
 ## [1.2.0](https://www.github.com/googleapis/python-bigquery-sqlalchemy/compare/v1.1.0...v1.2.0) (2021-09-09)
 
 
diff --git a/dev_requirements.txt b/dev_requirements.txt
index a092f5b0..e4a6a867 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -4,4 +4,4 @@ future==0.18.2
 
 pytest==6.2.5
 pytest-flake8==1.0.7
-pytz==2021.1
\ No newline at end of file
+pytz==2021.3
\ No newline at end of file
diff --git a/owlbot.py b/owlbot.py
index dcec1b04..c3735f3e 100644
--- a/owlbot.py
+++ b/owlbot.py
@@ -63,7 +63,7 @@
 )
 
 s.replace(
-    ["noxfile.py"], "google/cloud", "sqlalchemy_bigquery",
+    ["noxfile.py"], "--cov=google", "--cov=sqlalchemy_bigquery",
 )
 
 def place_before(path, text, *before_text, escape=None):
diff --git a/samples/snippets/noxfile.py b/samples/snippets/noxfile.py
index b008613f..93a9122c 100644
--- a/samples/snippets/noxfile.py
+++ b/samples/snippets/noxfile.py
@@ -87,7 +87,7 @@ def get_pytest_env_vars() -> Dict[str, str]:
 
 # DO NOT EDIT - automatically generated.
 # All versions used to test samples.
-ALL_VERSIONS = ["3.6", "3.7", "3.8", "3.9"]
+ALL_VERSIONS = ["3.6", "3.7", "3.8", "3.9", "3.10"]
 
 # Any default versions that should be ignored.
 IGNORED_VERSIONS = TEST_CONFIG["ignored_versions"]
@@ -98,6 +98,10 @@ def get_pytest_env_vars() -> Dict[str, str]:
     "True",
     "true",
 )
+
+# Error if a python version is missing
+nox.options.error_on_missing_interpreters = True
+
 #
 # Style Checks
 #
diff --git a/samples/snippets/requirements-test.txt b/samples/snippets/requirements-test.txt
index 1d27f79b..94f7ef6a 100644
--- a/samples/snippets/requirements-test.txt
+++ b/samples/snippets/requirements-test.txt
@@ -9,4 +9,4 @@ pyparsing==2.4.7
 pytest==6.2.5
 toml==0.10.2
 typing-extensions==3.10.0.2
-zipp==3.5.0
+zipp==3.6.0
diff --git a/samples/snippets/requirements.txt b/samples/snippets/requirements.txt
index 78b9ee50..5e266cdf 100644
--- a/samples/snippets/requirements.txt
+++ b/samples/snippets/requirements.txt
@@ -1,10 +1,10 @@
 aiocontextvars==0.2.2
 attrs==21.2.0
-cachetools==4.2.2
-certifi==2021.5.30
+cachetools==4.2.4
+certifi==2021.10.8
 cffi==1.14.6
-charset-normalizer==2.0.4
-click==8.0.1
+charset-normalizer==2.0.7
+click==8.0.3
 click-plugins==1.1.1
 cligj==0.7.2
 contextvars==2.4
@@ -13,21 +13,22 @@ Deprecated==1.2.13
 Fiona==1.8.20
 future==0.18.2
 GeoAlchemy2==0.9.4
-geopandas==0.9.0
-google-api-core==2.0.1
-google-auth==2.0.2
-google-cloud-bigquery==2.26.0
-google-cloud-bigquery-storage==2.7.0
-google-cloud-core==2.0.0
-google-crc32c==1.1.2
-google-resumable-media==2.0.2
+geopandas==0.9.0; python_version < '3.7'
+geopandas==0.10.0; python_version >= '3.7'
+google-api-core==2.1.0
+google-auth==2.3.0
+google-cloud-bigquery==2.28.1
+google-cloud-bigquery-storage==2.9.1
+google-cloud-core==2.1.0
+google-crc32c==1.3.0
+google-resumable-media==2.0.3
 googleapis-common-protos==1.53.0
-greenlet==1.1.1
-grpcio==1.40.0
-idna==3.2
+greenlet==1.1.2
+grpcio==1.41.0
+idna==3.3
 immutables==0.16
 importlib-metadata==4.8.1
-libcst==0.3.20
+libcst==0.3.21
 munch==2.5.0
 mypy-extensions==0.4.3
 numpy==1.19.5; python_version < '3.7'
@@ -39,8 +40,8 @@ opentelemetry-semantic-conventions==0.24b0
 packaging==21.0
 pandas==1.1.5; python_version < '3.7'
 pandas==1.3.2; python_version >= '3.7'
-proto-plus==1.19.0
-protobuf==3.17.3
+proto-plus==1.19.5
+protobuf==3.18.1
 pyarrow==5.0.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
@@ -49,17 +50,17 @@ pyparsing==2.4.7
 pyproj==3.0.1; python_version < '3.7'
 pyproj==3.1.0; python_version >= '3.7'
 python-dateutil==2.8.2
-pytz==2021.1
+pytz==2021.3
 PyYAML==5.4.1
 requests==2.26.0
 rsa==4.7.2
 Shapely==1.7.1
 six==1.16.0
-SQLAlchemy==1.4.23
-sqlalchemy-bigquery==1.1.0
-tqdm==4.62.2
+SQLAlchemy==1.4.25
+sqlalchemy-bigquery==1.2.0
+tqdm==4.62.3
 typing-extensions==3.10.0.2
 typing-inspect==0.7.1
-urllib3==1.26.6
-wrapt==1.12.1
-zipp==3.5.0
+urllib3==1.26.7
+wrapt==1.13.2
+zipp==3.6.0
diff --git a/sqlalchemy_bigquery/base.py b/sqlalchemy_bigquery/base.py
index f5b1d515..f2da562d 100644
--- a/sqlalchemy_bigquery/base.py
+++ b/sqlalchemy_bigquery/base.py
@@ -50,6 +50,7 @@
 from sqlalchemy.engine.default import DefaultDialect, DefaultExecutionContext
 from sqlalchemy.engine.base import Engine
 from sqlalchemy.sql.schema import Column
+from sqlalchemy.sql.schema import Table
 from sqlalchemy.sql import elements, selectable
 import re
 
@@ -289,12 +290,18 @@ def visit_column(
             if isinstance(tablename, elements._truncated_label):
                 tablename = self._truncated_identifier("alias", tablename)
             elif TABLE_VALUED_ALIAS_ALIASES in kwargs:
-                aliases = kwargs[TABLE_VALUED_ALIAS_ALIASES]
-                if tablename not in aliases:
-                    aliases[tablename] = self.anon_map[
-                        f"{TABLE_VALUED_ALIAS_ALIASES} {tablename}"
-                    ]
-                tablename = aliases[tablename]
+                known_tables = set(
+                    from_.name
+                    for from_ in self.compile_state.froms
+                    if isinstance(from_, Table)
+                )
+                if tablename not in known_tables:
+                    aliases = kwargs[TABLE_VALUED_ALIAS_ALIASES]
+                    if tablename not in aliases:
+                        aliases[tablename] = self.anon_map[
+                            f"{TABLE_VALUED_ALIAS_ALIASES} {tablename}"
+                        ]
+                    tablename = aliases[tablename]
 
             return self.preparer.quote(tablename) + "." + name
 
@@ -464,8 +471,14 @@ def visit_bindparam(
             # The NullType/known-type check has to do with some extreme
             # edge cases having to do with empty in-lists that get special
             # hijinks from SQLAlchemy that we don't want to disturb. :)
+            #
+            # Note that we do *not* want to overwrite the "real" bindparam
+            # here, because then we can't do a recompile later (e.g., first
+            # print the statment, then execute it).  See issue #357.
+            #
             if getattr(bindparam, "expand_op", None) is not None:
                 assert bindparam.expand_op.__name__.endswith("in_op")  # in in
+                bindparam = bindparam._clone(maintain_key=True)
                 bindparam.expanding = False
                 unnest = True
 
@@ -789,7 +802,7 @@ def create_connect_args(self, url):
         )
         return ([client], {})
 
-    def _get_table_or_view_names(self, connection, table_type, schema=None):
+    def _get_table_or_view_names(self, connection, item_types, schema=None):
         current_schema = schema or self.dataset_id
         get_table_name = (
             self._build_formatted_table_id
@@ -810,7 +823,7 @@ def _get_table_or_view_names(self, connection, table_type, schema=None):
                     dataset.reference, page_size=self.list_tables_page_size
                 )
                 for table in tables:
-                    if table_type == table.table_type:
+                    if table.table_type in item_types:
                         result.append(get_table_name(table))
             except google.api_core.exceptions.NotFound:
                 # It's possible that the dataset was deleted between when we
@@ -963,13 +976,15 @@ def get_table_names(self, connection, schema=None, **kw):
         if isinstance(connection, Engine):
             connection = connection.connect()
 
-        return self._get_table_or_view_names(connection, "TABLE", schema)
+        item_types = ["TABLE", "EXTERNAL"]
+        return self._get_table_or_view_names(connection, item_types, schema)
 
     def get_view_names(self, connection, schema=None, **kw):
         if isinstance(connection, Engine):
             connection = connection.connect()
 
-        return self._get_table_or_view_names(connection, "VIEW", schema)
+        item_types = ["VIEW", "MATERIALIZED_VIEW"]
+        return self._get_table_or_view_names(connection, item_types, schema)
 
     def do_rollback(self, dbapi_connection):
         # BigQuery has no support for transactions.
diff --git a/sqlalchemy_bigquery/version.py b/sqlalchemy_bigquery/version.py
index f7a8338b..66fe5995 100644
--- a/sqlalchemy_bigquery/version.py
+++ b/sqlalchemy_bigquery/version.py
@@ -17,4 +17,4 @@
 # IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__version__ = "1.2.0"
+__version__ = "1.2.1"
diff --git a/tests/system/conftest.py b/tests/system/conftest.py
index 7bf76a2d..04803ebd 100644
--- a/tests/system/conftest.py
+++ b/tests/system/conftest.py
@@ -23,8 +23,10 @@
 import pytest
 import sqlalchemy
 
+from google.api_core import exceptions
 from google.cloud import bigquery
 import test_utils.prefixer
+import test_utils.retry
 
 from sqlalchemy_bigquery import BigQueryDialect
 
@@ -128,7 +130,10 @@ def bigquery_regional_dataset(bigquery_client, bigquery_schema):
 @pytest.fixture(autouse=True)
 def cleanup_extra_tables(bigquery_client, bigquery_dataset):
     common = "sample", "sample_one_row", "sample_view", "sample_dml_empty"
-    for table in bigquery_client.list_tables(bigquery_dataset):
+    # Back-end may raise 403 for a dataset not ready yet.
+    retry_403 = test_utils.retry.RetryErrors(exceptions.Forbidden)
+    tables = retry_403(bigquery_client.list_tables)(bigquery_dataset)
+    for table in tables:
         if table.table_id not in common:
             bigquery_client.delete_table(table)
 
diff --git a/tests/unit/test_compiler.py b/tests/unit/test_compiler.py
index 88030b47..5da4e935 100644
--- a/tests/unit/test_compiler.py
+++ b/tests/unit/test_compiler.py
@@ -21,6 +21,7 @@
 import sqlalchemy.exc
 
 from conftest import setup_table
+from conftest import sqlalchemy_1_4_or_higher
 
 
 def test_constraints_are_ignored(faux_conn, metadata):
@@ -53,3 +54,25 @@ def test_cant_compile_unnamed_column(faux_conn, metadata):
         match="Cannot compile Column object until its 'name' is assigned.",
     ):
         sqlalchemy.Column(sqlalchemy.Integer).compile(faux_conn)
+
+
+@sqlalchemy_1_4_or_higher
+def test_no_alias_for_known_tables(faux_conn, metadata):
+    # See: https://github.com/googleapis/python-bigquery-sqlalchemy/issues/353
+    table = setup_table(
+        faux_conn,
+        "table1",
+        metadata,
+        sqlalchemy.Column("foo", sqlalchemy.Integer),
+        sqlalchemy.Column("bar", sqlalchemy.ARRAY(sqlalchemy.Integer)),
+    )
+    F = sqlalchemy.func
+    q = sqlalchemy.select(table.c.foo).where(F.unnest(table.c.bar).column_valued() == 1)
+
+    expected_sql = (
+        "SELECT `table1`.`foo` \n"
+        "FROM `table1`, unnest(`table1`.`bar`) AS `anon_1` \n"
+        "WHERE `anon_1` = %(param_1:INT64)s"
+    )
+    found_sql = q.compile(faux_conn).string
+    assert found_sql == expected_sql
diff --git a/tests/unit/test_sqlalchemy_bigquery.py b/tests/unit/test_sqlalchemy_bigquery.py
index 75cbec42..e97b15ff 100644
--- a/tests/unit/test_sqlalchemy_bigquery.py
+++ b/tests/unit/test_sqlalchemy_bigquery.py
@@ -77,9 +77,11 @@ def table_item(dataset_id, table_id, type_="TABLE"):
                 [
                     table_item("dataset_2", "d2t1"),
                     table_item("dataset_2", "d2view", type_="VIEW"),
+                    table_item("dataset_2", "d2ext", type_="EXTERNAL"),
+                    table_item("dataset_2", "d2mv", type_="MATERIALIZED_VIEW"),
                 ],
             ],
-            ["dataset_1.d1t1", "dataset_1.d1t2", "dataset_2.d2t1"],
+            ["dataset_1.d1t1", "dataset_1.d1t2", "dataset_2.d2t1", "dataset_2.d2ext"],
         ),
         (
             [dataset_item("dataset_1"), dataset_item("dataset_deleted")],
@@ -117,9 +119,11 @@ def test_get_table_names(
                 [
                     table_item("dataset_2", "d2t1"),
                     table_item("dataset_2", "d2view", type_="VIEW"),
+                    table_item("dataset_2", "d2ext", type_="EXTERNAL"),
+                    table_item("dataset_2", "d2mv", type_="MATERIALIZED_VIEW"),
                 ],
             ],
-            ["dataset_1.d1view", "dataset_2.d2view"],
+            ["dataset_1.d1view", "dataset_2.d2view", "dataset_2.d2mv"],
         ),
         (
             [dataset_item("dataset_1"), dataset_item("dataset_deleted")],