summaryrefslogtreecommitdiff
path: root/lib/sqlalchemy/dialects/postgresql/base.py
diff options
context:
space:
mode:
Diffstat (limited to 'lib/sqlalchemy/dialects/postgresql/base.py')
-rw-r--r--lib/sqlalchemy/dialects/postgresql/base.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/sqlalchemy/dialects/postgresql/base.py b/lib/sqlalchemy/dialects/postgresql/base.py
index 47a516a5a..18f31ce47 100644
--- a/lib/sqlalchemy/dialects/postgresql/base.py
+++ b/lib/sqlalchemy/dialects/postgresql/base.py
@@ -1717,6 +1717,10 @@ class PGCompiler(compiler.SQLCompiler):
return f"{element.name}{self.function_argspec(element, **kw)}"
def render_bind_cast(self, type_, dbapi_type, sqltext):
+ if dbapi_type._type_affinity is sqltypes.String:
+ # use VARCHAR with no length for VARCHAR cast.
+ # see #9511
+ dbapi_type = sqltypes.STRINGTYPE
return f"""{sqltext}::{
self.dialect.type_compiler_instance.process(
dbapi_type, identifier_preparer=self.preparer