[Sqlalchemy-tickets] Issue #4111: Wrong DDL for table creation in Postgresql ARRAY type (zzzeek/sqlalchemy)

[Daniel G. <iss...@bi...>]

New issue 4111: Wrong DDL for table creation in Postgresql ARRAY type
https://bitbucket.org/zzzeek/sqlalchemy/issues/4111/wrong-ddl-for-table-creation-in-postgresql

Daniel Gonzalez:

```
#!python

import sqlalchemy as sa
from sqlalchemy.dialects import postgresql
from sqlalchemy.schema import CreateTable

_metadata = sa.MetaData()
t = sa.Table(
            'test_table2',
            _metadata,
            sa.Column('id', sa.Integer, primary_key=True),
            sa.Column('city', sa.String),
            sa.Column('country', sa.String),
            sa.Column('properties', postgresql.JSONB),
            sa.Column('languages', postgresql.ARRAY(sa.String, dimensions=1))
        )
        
print(str(CreateTable(t)))
```
Results in incorrect ARRAY column (missing type):

```
#!python

CREATE TABLE test_table2 (
	id INTEGER NOT NULL,
	city VARCHAR,
	country VARCHAR,
	properties JSONB,
	languages ARRAY,
	PRIMARY KEY (id)
)
```

Dialect: pypostgresql and psycopg2