7 files changed, 9 insertions, 0 deletions
diff --git a/lib/sqlalchemy/dialects/postgresql/asyncpg.py b/lib/sqlalchemy/dialects/postgresql/asyncpg.py
index 4580421f6..8cd5bee41 100644
--- a/lib/sqlalchemy/dialects/postgresql/asyncpg.py
+++ b/lib/sqlalchemy/dialects/postgresql/asyncpg.py
@@ -850,6 +850,7 @@ _pg_types = {
 
 class PGDialect_asyncpg(PGDialect):
     driver = "asyncpg"
+    supports_statement_cache = True
 
     supports_unicode_statements = True
     supports_server_side_cursors = True
diff --git a/lib/sqlalchemy/dialects/postgresql/base.py b/lib/sqlalchemy/dialects/postgresql/base.py
index 97eb07bdb..2c4e316b3 100644
--- a/lib/sqlalchemy/dialects/postgresql/base.py
+++ b/lib/sqlalchemy/dialects/postgresql/base.py
@@ -3062,6 +3062,7 @@ class PGDeferrableConnectionCharacteristic(
 
 class PGDialect(default.DefaultDialect):
     name = "postgresql"
+    supports_statement_cache = True
     supports_alter = True
     max_identifier_length = 63
     supports_sane_rowcount = True
diff --git a/lib/sqlalchemy/dialects/postgresql/pg8000.py b/lib/sqlalchemy/dialects/postgresql/pg8000.py
index 43df6edea..eaf6ccbb8 100644
--- a/lib/sqlalchemy/dialects/postgresql/pg8000.py
+++ b/lib/sqlalchemy/dialects/postgresql/pg8000.py
@@ -252,6 +252,7 @@ class PGIdentifierPreparer_pg8000(PGIdentifierPreparer):
 
 class PGDialect_pg8000(PGDialect):
     driver = "pg8000"
+    supports_statement_cache = True
 
     supports_unicode_statements = True
 
diff --git a/lib/sqlalchemy/dialects/postgresql/psycopg2.py b/lib/sqlalchemy/dialects/postgresql/psycopg2.py
index 16f9ecefa..c2b679022 100644
--- a/lib/sqlalchemy/dialects/postgresql/psycopg2.py
+++ b/lib/sqlalchemy/dialects/postgresql/psycopg2.py
@@ -634,6 +634,9 @@ EXECUTEMANY_VALUES_PLUS_BATCH = util.symbol(
 
 class PGDialect_psycopg2(PGDialect):
     driver = "psycopg2"
+
+    supports_statement_cache = True
+
     if util.py2k:
         # turn off supports_unicode_statements for Python 2. psycopg2 supports
         # unicode statements in Py2K. But!  it does not support unicode *bound
diff --git a/lib/sqlalchemy/dialects/postgresql/psycopg2cffi.py b/lib/sqlalchemy/dialects/postgresql/psycopg2cffi.py
index a449f9e65..780244be9 100644
--- a/lib/sqlalchemy/dialects/postgresql/psycopg2cffi.py
+++ b/lib/sqlalchemy/dialects/postgresql/psycopg2cffi.py
@@ -28,6 +28,7 @@ from .psycopg2 import PGDialect_psycopg2
 class PGDialect_psycopg2cffi(PGDialect_psycopg2):
     driver = "psycopg2cffi"
     supports_unicode_statements = True
+    supports_statement_cache = True
 
     # psycopg2cffi's first release is 2.5.0, but reports
     # __version__ as 2.4.4.  Subsequent releases seem to have
diff --git a/lib/sqlalchemy/dialects/postgresql/pygresql.py b/lib/sqlalchemy/dialects/postgresql/pygresql.py
index 64dd7262d..718bbf78f 100644
--- a/lib/sqlalchemy/dialects/postgresql/pygresql.py
+++ b/lib/sqlalchemy/dialects/postgresql/pygresql.py
@@ -193,6 +193,7 @@ class _PGIdentifierPreparer(PGIdentifierPreparer):
 class PGDialect_pygresql(PGDialect):
 
     driver = "pygresql"
+    supports_statement_cache = True
 
     statement_compiler = _PGCompiler
     preparer = _PGIdentifierPreparer
diff --git a/lib/sqlalchemy/dialects/postgresql/pypostgresql.py b/lib/sqlalchemy/dialects/postgresql/pypostgresql.py
index 6e4db217d..7d4783867 100644
--- a/lib/sqlalchemy/dialects/postgresql/pypostgresql.py
+++ b/lib/sqlalchemy/dialects/postgresql/pypostgresql.py
@@ -52,6 +52,7 @@ class PGExecutionContext_pypostgresql(PGExecutionContext):
 class PGDialect_pypostgresql(PGDialect):
     driver = "pypostgresql"
 
+    supports_statement_cache = True
     supports_unicode_statements = True
     supports_unicode_binds = True
     description_encoding = None