Fixed minimum version of sqlalchemy for 1.4 backwards compatibility

Author: kiraksi

noxfile.py

@@ -369,7 +369,7 @@ def compliance(session):
         session.skip("Compliance tests were not found")
 
     session.install("--pre", "grpcio")
-    session.install("--pre", "--no-deps", "--upgrade", "sqlalchemy>=1.4,<2.1")
+    session.install("--pre", "--no-deps", "--upgrade", "sqlalchemy>=1.4.15,<2.1")
     session.install(
         "mock",
         "pytest",
@@ -527,7 +527,7 @@ def prerelease_deps(session):
 
     prerel_deps = [
         "protobuf",
-        "sqlalchemy>=1.4,<2.1",
+        "sqlalchemy>=1.4.15,<2.1",
         # dependency of grpc
         "six",
         "googleapis-common-protos",

owlbot.py

@@ -96,7 +96,7 @@
     """"protobuf",
         # dependency of grpc""",
     """"protobuf",
-        "sqlalchemy>=1.4,<2.1",
+        "sqlalchemy>=1.4.15,<2.1",
         # dependency of grpc""",
 )
 
@@ -120,7 +120,7 @@ def place_before(path, text, *before_text, escape=None):
     "noxfile.py",
     "SYSTEM_TEST_PYTHON_VERSIONS=",
     "",
-    "# We're using two Python versions to test with sqlalchemy>=1.4",
+    "# We're using two Python versions to test with sqlalchemy>=1.4.15",
 )
 
 place_before(
@@ -167,7 +167,7 @@ def compliance(session):
         session.skip("Compliance tests were not found")
 
     session.install("--pre", "grpcio")
-    session.install("--pre", "--no-deps", "--upgrade", "sqlalchemy>=1.4,<2.1") 
+    session.install("--pre", "--no-deps", "--upgrade", "sqlalchemy>=1.4.15,<2.1") 
     session.install(
         "mock",
         "pytest",

samples/snippets/requirements.txt

@@ -28,6 +28,6 @@ requests==2.31.0
 rsa==4.9
 shapely==2.0.2
 six==1.16.0
-sqlalchemy===2.0.22
+sqlalchemy===1.4.15
 typing-extensions==4.9.0
 urllib3==2.1.0

setup.py

@@ -101,7 +101,7 @@ def readme():
         "google-auth>=1.25.0,<3.0.0dev",  # Work around pip wack.
         "google-cloud-bigquery>=3.3.6,<4.0.0dev",
         "packaging",
-        "sqlalchemy>=1.4,<2.0.23",
+        "sqlalchemy>=1.4.15,<2.1",
     ],
     extras_require=extras,
     python_requires=">=3.8, <3.13",

testing/constraints-3.8.txt

@@ -4,7 +4,7 @@
 # Pin the version to the lower bound.
 #
 # e.g., if setup.py has "foo >= 1.14.0, < 2.0.0dev",
-sqlalchemy==1.4.0
+sqlalchemy==1.4.15
 google-auth==1.25.0
 google-cloud-bigquery==3.3.6
 google-cloud-bigquery-storage==2.0.0