def quote_schema(self, schema, force=None):
if '.' in schema:
cat, schema = schema.split('.', 1)
return self.quote(cat, force) + '.' + self.quote(schema, force)
else:
# Virtuoso needs an extra dot to indicate absent username
return self.quote(schema, force) + '.'
def get_table_names(self, connection, schema=None, **kw):
if schema is None:
schema = self.default_schema_name
if schema is None:
result = connection.execute(
text("SELECT TABLE_NAME FROM DB..TABLES"))
return [r[0] for r in result]
if '.' not in schema:
schema += '.'
catalog, schema = schema.split('.', 1)
if catalog:
if schema:
result = connection.execute(
text("SELECT TABLE_NAME FROM DB..TABLES WHERE"
"TABLE_CATALOG=:catalog AND TABLE_SCHEMA = :schema"),
catalog=catalog, schema=schema)
else:
result = connection.execute(
text("SELECT TABLE_NAME FROM DB..TABLES WHERE"
"TABLE_CATALOG=:catalog"), catalog=catalog)
else:
result = connection.execute(
text("SELECT TABLE_NAME FROM DB..TABLES WHERE"
"TABLE_SCHEMA=:schema"), schema=schema)
return [r[0] for r in result]
def get_table_names(self, connection, schema=None, **kw):
if schema is None:
schema = self.default_schema_name
if schema is None:
result = connection.execute(
text("SELECT TABLE_NAME FROM DB..TABLES"))
return [r[0] for r in result]
if '.' not in schema:
schema += '.'
catalog, schema = schema.split('.', 1)
if catalog:
if schema:
result = connection.execute(text(
"SELECT TABLE_NAME FROM DB..TABLES WHERE "
"TABLE_CATALOG=:catalog AND TABLE_SCHEMA = :schema"),
catalog=catalog,
schema=schema)
else:
result = connection.execute(text(
"SELECT TABLE_NAME FROM DB..TABLES WHERE"
"TABLE_CATALOG=:catalog"),
catalog=catalog)
else:
result = connection.execute(text(
"SELECT TABLE_NAME FROM DB..TABLES WHERE"
"TABLE_SCHEMA=:schema"),
schema=schema)
return [r[0] for r in result]
def quote_schema(self, schema, force=None):
if '.' in schema:
cat, schema = schema.split('.', 1)
return self.quote(cat, force) + '.' + self.quote(schema, force)
else:
# Virtuoso needs an extra dot to indicate absent username
return self.quote(schema, force) + '.'
def has_table(self, connection, tablename, schema=None):
if schema is None:
schema = self.default_schema_name
if '.' not in schema:
schema += '.'
catalog, schema = schema.split('.', 1)
result = connection.execute(
text("SELECT TABLE_NAME FROM DB..TABLES WHERE "
"TABLE_CATALOG=:schemaname AND "
"TABLE_NAME=:tablename",
bindparams=[
bindparam("schemaname", catalog),
bindparam("tablename", tablename)
])
)
return result.scalar() is not None
def has_table(self, connection, tablename, schema=None):
if schema is None:
schema = self.default_schema_name
if '.' not in schema:
schema += '.'
catalog, schema = schema.split('.', 1)
result = connection.execute(
text(
"SELECT TABLE_NAME FROM DB..TABLES WHERE "
"TABLE_CATALOG=:schemaname AND "
"TABLE_NAME=:tablename",
bindparams=[
bindparam("schemaname", catalog),
bindparam("tablename", tablename)
]))
return result.scalar() is not None
