def test_fixed_width_format_without_widths():
copy = dialect.CopyCommand(tbl,
format=commands.Format.fixed_width,
data_location='s3://bucket',
access_key_id=access_key_id,
secret_access_key=secret_access_key)
with pytest.raises(sa_exc.CompileError,
match=r"^'fixed_width' argument required.*$"):
compile_query(copy)
def test_fixed_width_format_without_widths():
copy = dialect.CopyCommand(
tbl,
format=commands.Format.fixed_width,
data_location='s3://bucket',
access_key_id=access_key_id,
secret_access_key=secret_access_key
)
with pytest.raises(sa_exc.CompileError,
match=r"^'fixed_width' argument required.*$"):
compile_query(copy)
def test_parquet_format__bad_options_crash(kwargs):
"""Verify we crash if we use the Parquet format with a bad option."""
unload = dialect.UnloadFromSelect(select=sa.select(
[sa.func.count(table.c.id)]),
unload_location='s3://bucket/key',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
format=dialect.Format.parquet,
**kwargs)
with pytest.raises(ValueError):
compile_query(unload)
def test_csv_format__bad_options_crash(delimiter, fixed_width):
"""Test that UnloadFromSelect crashes if you try to use DELIMITER and/or
FIXEDWIDTH with the CSV format.
"""
unload = dialect.UnloadFromSelect(select=sa.select(
[sa.func.count(table.c.id)]),
unload_location='s3://bucket/key',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
format=dialect.Format.csv,
delimiter=delimiter,
fixed_width=fixed_width)
with pytest.raises(ValueError):
compile_query(unload)
def test_iam_role(stub_redshift_dialect):
"""Tests the use of iam role instead of access keys."""
aws_account_id = '000123456789'
iam_role_name = 'redshiftrole'
creds = 'aws_iam_role=arn:aws:iam::{0}:role/{1}'.format(
aws_account_id,
iam_role_name,
)
unload = dialect.UnloadFromSelect(
select=sa.select([sa.func.count(table.c.id)]),
unload_location='s3://bucket/key',
aws_account_id=aws_account_id,
iam_role_name=iam_role_name,
)
expected_result = """
UNLOAD ('SELECT count(t1.id) AS count_1 FROM t1')
TO 's3://bucket/key'
CREDENTIALS '{creds}'
""".format(creds=creds)
assert clean(compile_query(unload, stub_redshift_dialect)) == \
clean(expected_result)
def test_ascii_nul_as_redshift_null():
expected_result = """
COPY schema1.t1 FROM 's3://mybucket/data/listing/'
WITH CREDENTIALS AS '%s'
DELIMITER AS ','
BZIP2
BLANKSASNULL
EMPTYASNULL
IGNOREHEADER AS 0
NULL AS '\0'
TRUNCATECOLUMNS
""" % creds
copy = dialect.CopyCommand(
tbl,
data_location='s3://mybucket/data/listing/',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
compression='BZIP2',
dangerous_null_delimiter=u'\000',
truncate_columns=True,
delimiter=',',
ignore_header=0,
empty_as_null=True,
blanks_as_null=True,
)
assert clean(expected_result) == clean(compile_query(copy))
def test_delete_stmt_joinedwhereclause1():
del_stmt = sa.delete(orders).where(orders.c.customer_id == customers.c.id)
expected = """
DELETE FROM orders
USING customers
WHERE orders.customer_id = customers.id"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_iam_role_partition():
"""Tests the use of iam role with a custom partition"""
aws_partition = 'aws-us-gov'
aws_account_id = '000123456789'
iam_role_name = 'redshiftrole'
creds = 'aws_iam_role=arn:{0}:iam::{1}:role/{2}'.format(
aws_partition,
aws_account_id,
iam_role_name,
)
unload = dialect.UnloadFromSelect(
select=sa.select([sa.func.count(table.c.id)]),
unload_location='s3://bucket/key',
aws_partition=aws_partition,
aws_account_id=aws_account_id,
iam_role_name=iam_role_name,
)
expected_result = """
UNLOAD ('SELECT count(t1.id) AS count_1 FROM t1')
TO 's3://bucket/key'
CREDENTIALS '{creds}'
""".format(creds=creds)
assert clean(compile_query(unload)) == clean(expected_result)
def test_delete_on_comma(stub_redshift_dialect):
del_stmt = sa.delete(ham).where(ham.c.id == hammy_spam.c.ham_id)
expected = """
DELETE FROM ham USING "ham, spam"
WHERE ham.id = "ham, spam".ham_id"""
assert clean(compile_query(del_stmt, stub_redshift_dialect)) == \
clean(expected)
def test_delete_stmt_with_comma_subquery_alias_join(stub_redshift_dialect):
parent_ = sa.alias(product)
del_stmt = sa.delete(items).where(items.c.order_id == orders.c.id).where(
orders.c.customer_id.in_(
sa.select([customers.c.id]).where(
customers.c.email.endswith('test.com')))).where(
items.c.product_id == product.c.id).where(
product.c.parent_id == parent_.c.id).where(
parent_.c.id != hammy_spam.c.ham_id)
expected = """
DELETE FROM items
USING orders, products, products AS products_1, "ham, spam"
WHERE items.order_id = orders.id
AND orders.customer_id IN
(SELECT customers.id
FROM customers
WHERE (customers.email LIKE '%%' || 'test.com'))
AND items.product_id = products.id
AND products.parent_id = products_1.id
AND products_1.id != "ham, spam".ham_id"""
assert clean(compile_query(del_stmt, stub_redshift_dialect)) == \
clean(expected)
def test_json_upload_with_manifest_region_ordered_columns():
expected_result = """
COPY schema1.t1 (col1, col2) FROM 's3://mybucket/data/listing.manifest'
WITH CREDENTIALS AS '%s'
FORMAT AS JSON AS 's3://mybucket/data/jsonpath.json'
GZIP
MANIFEST
REGION AS 'us-east-1'
ACCEPTANYDATE
TIMEFORMAT AS 'auto'
""" % creds
copy = dialect.CopyCommand(
[tbl.c.col1, tbl.c.col2],
data_location='s3://mybucket/data/listing.manifest',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
manifest=True,
region='us-east-1',
format='JSON',
path_file='s3://mybucket/data/jsonpath.json',
compression='GZIP',
time_format='auto',
accept_any_date=True,
)
assert clean(expected_result) == clean(compile_query(copy))
def test_basic_copy_case():
expected_result = """
COPY schema1.t1 FROM 's3://mybucket/data/listing/'
WITH CREDENTIALS AS '%s'
DELIMITER AS ','
BLANKSASNULL
EMPTYASNULL
IGNOREHEADER AS 0
TRUNCATECOLUMNS
REGION 'eu-west-3'
""" % creds
copy = dialect.CopyCommand(
tbl,
data_location='s3://mybucket/data/listing/',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
truncate_columns=True,
delimiter=',',
ignore_header=0,
empty_as_null=True,
blanks_as_null=True,
region='eu-west-3',
)
assert clean(expected_result) == clean(compile_query(copy))
def test_delete_stmt_with_comma_subquery_alias_join():
parent_ = sa.alias(product)
del_stmt = (
sa.delete(items)
.where(items.c.order_id == orders.c.id)
.where(orders.c.customer_id.in_(sa.select([customers.c.id]).where(customers.c.email.endswith("test.com"))))
.where(items.c.product_id == product.c.id)
.where(product.c.parent_id == parent_.c.id)
.where(parent_.c.id != hammy_spam.c.ham_id)
)
expected = """
DELETE FROM items
USING orders, products, products AS products_1, "ham, spam"
WHERE items.order_id = orders.id
AND orders.customer_id IN
(SELECT customers.id
FROM customers
WHERE (customers.email LIKE '%%' || 'test.com'))
AND items.product_id = products.id
AND products.parent_id = products_1.id
AND products_1.id != "ham, spam".ham_id"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_iam_role_partition(stub_redshift_dialect):
"""Tests the use of iam role with a custom partition"""
aws_partition = 'aws-us-gov'
aws_account_id = '000123456789'
iam_role_name = 'redshiftrole'
creds = 'aws_iam_role=arn:{0}:iam::{1}:role/{2}'.format(
aws_partition,
aws_account_id,
iam_role_name,
)
expected_result = """
COPY schema1.t1 FROM 's3://mybucket/data/listing/'
WITH CREDENTIALS AS '{creds}'
""".format(creds=creds)
copy = dialect.CopyCommand(
tbl,
data_location='s3://mybucket/data/listing/',
aws_partition=aws_partition,
aws_account_id=aws_account_id,
iam_role_name=iam_role_name,
)
assert clean(expected_result) == \
clean(compile_query(copy, stub_redshift_dialect))
def test_basic_copy_case(stub_redshift_dialect):
expected_result = """
COPY schema1.t1 FROM 's3://mybucket/data/listing/'
WITH CREDENTIALS AS '%s'
DELIMITER AS ','
BLANKSASNULL
EMPTYASNULL
IGNOREHEADER AS 0
TRUNCATECOLUMNS
REGION 'eu-west-3'
""" % creds
copy = dialect.CopyCommand(
tbl,
data_location='s3://mybucket/data/listing/',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
truncate_columns=True,
delimiter=',',
ignore_header=0,
empty_as_null=True,
blanks_as_null=True,
region='eu-west-3',
)
assert clean(expected_result) == \
clean(compile_query(copy, stub_redshift_dialect))
def test_delete_stmt_simplewhereclause2():
del_stmt = sa.delete(customers).where(customers.c.email.endswith("test.com"))
expected = """
DELETE FROM customers
WHERE customers.email
LIKE '%%' || 'test.com'"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_basic_materialized_view(selectable):
expected_result = """
CREATE MATERIALIZED VIEW test_view
AS SELECT t1.id, t1.name FROM t1
"""
view = dialect.CreateMaterializedView("test_view", selectable)
assert clean(expected_result) == clean(compile_query(view))
def test_delete_stmt_joinedwhereclause1():
del_stmt = sa.delete(orders).where(orders.c.customer_id == customers.c.id)
expected = """
DELETE FROM orders
USING customers
WHERE orders.customer_id = customers.id"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_ascii_nul_as_redshift_null():
expected_result = """
COPY schema1.t1 FROM 's3://mybucket/data/listing/'
WITH CREDENTIALS AS '%s'
DELIMITER AS ','
BZIP2
BLANKSASNULL
EMPTYASNULL
IGNOREHEADER AS 0
NULL AS '\0'
TRUNCATECOLUMNS
""" % creds
copy = dialect.CopyCommand(
tbl,
data_location='s3://mybucket/data/listing/',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
compression='BZIP2',
dangerous_null_delimiter=u'\000',
truncate_columns=True,
delimiter=',',
ignore_header=0,
empty_as_null=True,
blanks_as_null=True,
)
assert clean(expected_result) == clean(compile_query(copy))
def test_format(stub_redshift_dialect):
expected_result = """
COPY t1 FROM 's3://mybucket/data/listing/'
WITH CREDENTIALS AS '%s'
FORMAT AS JSON AS 'auto'
DELIMITER AS ','
BLANKSASNULL
EMPTYASNULL
IGNOREHEADER AS 0
TRUNCATECOLUMNS
""" % creds
copy = dialect.CopyCommand(
tbl2,
data_location='s3://mybucket/data/listing/',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
format='JSON',
truncate_columns=True,
delimiter=',',
ignore_header=0,
empty_as_null=True,
blanks_as_null=True,
)
assert clean(expected_result) == \
clean(compile_query(copy, stub_redshift_dialect))
def test_delete_stmt_simplewhereclause1():
del_stmt = sa.delete(customers).where(
customers.c.email == '*****@*****.**')
expected = """
DELETE FROM customers
WHERE customers.email = '*****@*****.**'"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_delete_stmt_simplewhereclause2():
del_stmt = sa.delete(customers).where(
customers.c.email.endswith('test.com'))
expected = """
DELETE FROM customers
WHERE customers.email
LIKE '%%' || 'test.com'"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_delete_stmt_on_alias():
parent_ = sa.alias(product)
del_stmt = sa.delete(product).where(product.c.parent_id == parent_.c.id)
expected = """
DELETE FROM products
USING products AS products_1
WHERE products.parent_id = products_1.id"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_delete_stmt_on_subquerycomma():
del_stmt = sa.delete(ham).where(ham.c.id.in_(sa.select([hammy_spam.c.ham_id])))
expected = """
DELETE FROM ham
WHERE ham.id IN
(SELECT "ham, spam".ham_id
FROM "ham, spam")"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_delete_stmt_on_alias():
parent_ = sa.alias(product)
del_stmt = sa.delete(product).where(product.c.parent_id == parent_.c.id)
expected = """
DELETE FROM products
USING products AS products_1
WHERE products.parent_id = products_1.id"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_delete_stmt_on_subquerycomma():
del_stmt = sa.delete(ham).where(
ham.c.id.in_(sa.select([hammy_spam.c.ham_id])))
expected = """
DELETE FROM ham
WHERE ham.id IN
(SELECT "ham, spam".ham_id
FROM "ham, spam")"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_diststyle_materialized_view(selectable):
expected_result = """
CREATE MATERIALIZED VIEW test_view
DISTSTYLE ALL
AS SELECT t1.id, t1.name FROM t1
"""
view = dialect.CreateMaterializedView("test_view",
selectable,
diststyle='ALL')
assert clean(expected_result) == clean(compile_query(view))
def test_delete_stmt_subquery():
del_stmt = sa.delete(orders).where(
orders.c.customer_id.in_(sa.select([customers.c.id]).where(customers.c.email.endswith("test.com")))
)
expected = """
DELETE FROM orders
WHERE orders.customer_id IN
(SELECT customers.id
FROM customers
WHERE (customers.email LIKE '%%' || 'test.com'))"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_no_backup_materialized_view(selectable, stub_redshift_dialect):
expected_result = """
CREATE MATERIALIZED VIEW test_view
BACKUP NO
AS SELECT t1.id, t1.name FROM t1
"""
view = dialect.CreateMaterializedView("test_view",
selectable,
backup=False)
assert clean(expected_result) == \
clean(compile_query(view, stub_redshift_dialect))
def test_interleaved_sortkey_materialized_view(selectable):
expected_result = """
CREATE MATERIALIZED VIEW test_view
INTERLEAVED SORTKEY (id)
AS SELECT t1.id, t1.name FROM t1
"""
for key in ("id", selectable.c.id):
view = dialect.CreateMaterializedView("test_view",
selectable,
interleaved_sortkey=key)
assert clean(expected_result) == clean(compile_query(view))
def test_sortkey_materialized_view(selectable, stub_redshift_dialect):
expected_result = """
CREATE MATERIALIZED VIEW test_view
SORTKEY (id)
AS SELECT t1.id, t1.name FROM t1
"""
for key in ("id", selectable.c.id):
view = dialect.CreateMaterializedView("test_view",
selectable,
sortkey=key)
assert clean(expected_result) == \
clean(compile_query(view, stub_redshift_dialect))
def test_delete_stmt_subquery():
del_stmt = sa.delete(orders).where(
orders.c.customer_id.in_(
sa.select([customers.c.id
]).where(customers.c.email.endswith('test.com'))))
expected = """
DELETE FROM orders
WHERE orders.customer_id IN
(SELECT customers.id
FROM customers
WHERE (customers.email LIKE '%%' || 'test.com'))"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_delete_stmt_simplewhereclause2(stub_redshift_dialect):
del_stmt = sa.delete(customers).where(
customers.c.email.endswith('test.com'))
if sa_version >= Version('1.4.0'):
expected = """
DELETE FROM customers
WHERE (customers.email LIKE '%%' || 'test.com')"""
else:
expected = """
DELETE FROM customers
WHERE customers.email LIKE '%%' || 'test.com'"""
assert clean(compile_query(del_stmt, stub_redshift_dialect)) == \
clean(expected)
def test_view_reflection(redshift_engine):
table_ddl = "CREATE TABLE my_table (col1 INTEGER, col2 INTEGER)"
view_query = "SELECT my_table.col1, my_table.col2 FROM my_table"
view_ddl = "CREATE VIEW my_view AS %s" % view_query
conn = redshift_engine.connect()
conn.execute(table_ddl)
conn.execute(view_ddl)
insp = inspect(redshift_engine)
view_definition = insp.get_view_definition('my_view')
assert(clean(compile_query(view_definition)) == clean(view_query))
view = Table('my_view', MetaData(),
autoload=True, autoload_with=redshift_engine)
assert(len(view.columns) == 2)
def test_format__columnar(format_type):
expected_result = """
COPY t1 FROM 's3://mybucket/data/listing/'
WITH CREDENTIALS AS '%s'
FORMAT AS %s
""" % (creds, format_type.value.upper())
copy = dialect.CopyCommand(
tbl2,
data_location='s3://mybucket/data/listing/',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
format=format_type,
)
assert clean(expected_result) == clean(compile_query(copy))
def test_format():
expected_result = """
COPY t1 FROM 's3://mybucket/data/listing/'
CREDENTIALS '%s'
JSON TRUNCATECOLUMNS DELIMITER ',' IGNOREHEADER 0 EMPTYASNULL BLANKSASNULL
""" % creds
copy = dialect.CopyCommand(
table=tbl2,
data_location='s3://mybucket/data/listing/',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
format='JSON',
)
assert clean(expected_result) == clean(compile_query(copy))
def test_format():
expected_result = """
COPY t1 FROM 's3://mybucket/data/listing/'
CREDENTIALS '%s'
JSON TRUNCATECOLUMNS DELIMITER ',' IGNOREHEADER 0 EMPTYASNULL BLANKSASNULL
""" % creds
copy = dialect.CopyCommand(
table=tbl2,
data_location='s3://mybucket/data/listing/',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
format='JSON',
)
assert clean(expected_result) == clean(compile_query(copy))
def test_format__columnar(format_type):
expected_result = """
COPY t1 FROM 's3://mybucket/data/listing/'
WITH CREDENTIALS AS '%s'
FORMAT AS %s
""" % (creds, format_type.value.upper())
copy = dialect.CopyCommand(
tbl2,
data_location='s3://mybucket/data/listing/',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
format=format_type,
)
assert clean(expected_result) == clean(compile_query(copy))
def test_compression():
expected_result = """
COPY schema1.t1 FROM 's3://mybucket/data/listing/'
CREDENTIALS '%s'
CSV TRUNCATECOLUMNS DELIMITER ',' IGNOREHEADER 0 LZOP
EMPTYASNULL BLANKSASNULL
""" % creds
copy = dialect.CopyCommand(
table=tbl,
data_location='s3://mybucket/data/listing/',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
compression='LZOP',
)
assert clean(expected_result) == clean(compile_query(copy))
def test_delete_stmt_joinedwhereclause2():
del_stmt = sa.delete(orders).where(
orders.c.customer_id == customers.c.id).where(
orders.c.id == items.c.order_id).where(
customers.c.email.endswith('test.com')).where(
items.c.name == 'test product')
expected = """
DELETE FROM orders
USING customers, items
WHERE orders.customer_id = customers.id
AND orders.id = items.order_id
AND (customers.email LIKE '%%' || 'test.com')
AND items.name = 'test product'"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_or_replace():
name = 'SomeLibrary'
where = 's3://bucket/path/to/archive.zip'
expected_result = """
CREATE OR REPLACE LIBRARY "{name}"
LANGUAGE pythonplu
FROM '{where}'
WITH CREDENTIALS AS '{creds}'
""".format(name=name, where=where, creds=CREDS)
cmd = commands.CreateLibraryCommand(
name, where, access_key_id=ACCESS_KEY_ID,
secret_access_key=SECRET_ACCESS_KEY, replace=True)
assert clean(expected_result) == clean(compile_query(cmd))
def test_basic():
name = 'asdfghjkl'
where = 'https://www.example.com/libraries/extension.zip'
expected_result = """
CREATE LIBRARY "{name}"
LANGUAGE pythonplu
FROM '{where}'
WITH CREDENTIALS AS '{creds}'
""".format(name=name, where=where, creds=CREDS)
cmd = commands.CreateLibraryCommand(
name, where, access_key_id=ACCESS_KEY_ID,
secret_access_key=SECRET_ACCESS_KEY)
assert clean(expected_result) == clean(compile_query(cmd))
def test_compression():
expected_result = """
COPY schema1.t1 FROM 's3://mybucket/data/listing/'
CREDENTIALS '%s'
CSV TRUNCATECOLUMNS DELIMITER ',' IGNOREHEADER 0 LZOP
EMPTYASNULL BLANKSASNULL
""" % creds
copy = dialect.CopyCommand(
table=tbl,
data_location='s3://mybucket/data/listing/',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
compression='LZOP',
)
assert clean(expected_result) == clean(compile_query(copy))
def test_basic():
name = 'asdfghjkl'
where = 'https://www.example.com/libraries/extension.zip'
expected_result = """
CREATE LIBRARY "{name}"
LANGUAGE pythonplu
FROM '{where}'
WITH CREDENTIALS AS '{creds}'
""".format(name=name, where=where, creds=CREDS)
cmd = commands.CreateLibraryCommand(name,
where,
access_key_id=ACCESS_KEY_ID,
secret_access_key=SECRET_ACCESS_KEY)
assert clean(expected_result) == clean(compile_query(cmd))
def test_late_binding_view_reflection(redshift_engine):
table_ddl = "CREATE TABLE my_table (col1 INTEGER, col2 INTEGER)"
view_query = "SELECT my_table.col1, my_table.col2 FROM public.my_table"
view_ddl = ("CREATE VIEW my_late_view AS "
"%s WITH NO SCHEMA BINDING" % view_query)
conn = redshift_engine.connect()
conn.execute(table_ddl)
conn.execute(view_ddl)
insp = inspect(redshift_engine)
view_definition = insp.get_view_definition('my_late_view')
# For some reason, Redshift returns the entire DDL for late binding views.
assert(clean(compile_query(view_definition)) == clean(view_ddl))
view = Table('my_late_view', MetaData(),
autoload=True, autoload_with=redshift_engine)
assert(len(view.columns) == 2)
def test_delete_stmt_subqueryplusjoin():
del_stmt = (
sa.delete(orders)
.where(orders.c.customer_id.in_(sa.select([customers.c.id]).where(customers.c.email.endswith("test.com"))))
.where(orders.c.id == items.c.order_id)
.where(items.c.name == "test product")
)
expected = """
DELETE FROM orders
USING items
WHERE orders.customer_id IN
(SELECT customers.id
FROM customers
WHERE (customers.email LIKE '%%' || 'test.com'))
AND orders.id = items.order_id
AND items.name = 'test product'"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_basic_unload_case():
"""Tests that the simplest type of UnloadFromSelect works."""
unload = dialect.UnloadFromSelect(
select=sa.select([sa.func.count(table.c.id)]),
unload_location='s3://bucket/key',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
)
expected_result = """
UNLOAD ('SELECT count(t1.id) AS count_1 FROM t1')
TO 's3://bucket/key'
CREDENTIALS '{creds}'
""".format(creds=creds)
assert clean(compile_query(unload)) == clean(expected_result)
def test_region():
name = 'SomeLibrary'
where = 's3://bucket/path/to/archive.zip'
region = 'sa-east-1'
expected_result = """
CREATE LIBRARY "{name}"
LANGUAGE pythonplu
FROM '{where}'
WITH CREDENTIALS AS '{creds}'
REGION '{region}'
""".format(name=name, where=where, creds=CREDS, region=region)
cmd = commands.CreateLibraryCommand(
name, where, access_key_id=ACCESS_KEY_ID,
secret_access_key=SECRET_ACCESS_KEY, region=region)
assert clean(expected_result) == clean(compile_query(cmd))
def test_delete_stmt_joinedwhereclause2():
del_stmt = (
sa.delete(orders)
.where(orders.c.customer_id == customers.c.id)
.where(orders.c.id == items.c.order_id)
.where(customers.c.email.endswith("test.com"))
.where(items.c.name == "test product")
)
expected = """
DELETE FROM orders
USING customers, items
WHERE orders.customer_id = customers.id
AND orders.id = items.order_id
AND (customers.email LIKE '%%' || 'test.com')
AND items.name = 'test product'"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_stat_update_maxerror_and_escape():
expected_result = """
COPY schema1.t1 FROM 's3://mybucket/data/listing/'
WITH CREDENTIALS AS '%s'
ESCAPE
NULL AS '\x00'
MAXERROR AS 0
STATUPDATE ON
""" % creds
copy = dialect.CopyCommand(
tbl,
data_location='s3://mybucket/data/listing/',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
max_error=0,
dangerous_null_delimiter=u'\000',
stat_update=True,
escape=True,
)
assert clean(expected_result) == clean(compile_query(copy))
def test_all_redshift_options():
"""Tests that UnloadFromSelect handles all options correctly."""
unload = dialect.UnloadFromSelect(
sa.select([sa.func.count(table.c.id)]),
unload_location='s3://bucket/key',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
manifest=True,
delimiter=',',
fixed_width=[('count_1', 50), ],
encrypted=True,
gzip=True,
add_quotes=True,
null='---',
escape=True,
allow_overwrite=True,
parallel=False,
region='us-west-2',
max_file_size=10 * 1024**2,
)
expected_result = """
UNLOAD ('SELECT count(t1.id) AS count_1 FROM t1')
TO 's3://bucket/key'
CREDENTIALS '{creds}'
MANIFEST
DELIMITER AS ','
ENCRYPTED
FIXEDWIDTH AS 'count_1:50'
GZIP
ADDQUOTES
NULL AS '---'
ESCAPE
ALLOWOVERWRITE
PARALLEL OFF
REGION 'us-west-2'
MAXFILESIZE 10.0 MB
""".format(creds=creds)
assert clean(compile_query(unload)) == clean(expected_result)
def test_iam_role():
"""Tests the use of iam role instead of access keys."""
aws_account_id = '000123456789'
iam_role_name = 'redshiftrole'
creds = 'aws_iam_role=arn:aws:iam::{0}:role/{1}'.format(
aws_account_id,
iam_role_name,
)
expected_result = """
COPY schema1.t1 FROM 's3://mybucket/data/listing/'
WITH CREDENTIALS AS '{creds}'
""".format(creds=creds)
copy = dialect.CopyCommand(
tbl,
data_location='s3://mybucket/data/listing/',
aws_account_id=aws_account_id,
iam_role_name=iam_role_name,
)
assert clean(expected_result) == clean(compile_query(copy))
def test_json_upload_with_manifest_ordered_columns():
expected_result = """
COPY schema1.t1 (col1, col2) FROM 's3://mybucket/data/listing.manifest'
WITH CREDENTIALS AS '%s'
FORMAT AS JSON AS 's3://mybucket/data/jsonpath.json'
GZIP
MANIFEST
ACCEPTANYDATE
TIMEFORMAT AS 'auto'
""" % creds
copy = dialect.CopyCommand(
[tbl.c.col1, tbl.c.col2],
data_location='s3://mybucket/data/listing.manifest',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
manifest=True,
format='JSON',
path_file='s3://mybucket/data/jsonpath.json',
compression='GZIP',
time_format='auto',
accept_any_date=True,
)
assert clean(expected_result) == clean(compile_query(copy))
def test_iam_role():
"""Tests the use of iam role instead of access keys."""
aws_account_id = '000123456789'
iam_role_name = 'redshiftrole'
creds = 'aws_iam_role=arn:aws:iam::{0}:role/{1}'.format(
aws_account_id,
iam_role_name,
)
unload = dialect.UnloadFromSelect(
select=sa.select([sa.func.count(table.c.id)]),
unload_location='s3://bucket/key',
aws_account_id=aws_account_id,
iam_role_name=iam_role_name,
)
expected_result = """
UNLOAD ('SELECT count(t1.id) AS count_1 FROM t1')
TO 's3://bucket/key'
CREDENTIALS '{creds}'
""".format(creds=creds)
assert clean(compile_query(unload)) == clean(expected_result)
def test_format():
expected_result = """
COPY t1 FROM 's3://mybucket/data/listing/'
WITH CREDENTIALS AS '%s'
FORMAT AS JSON AS 'auto'
DELIMITER AS ','
BLANKSASNULL
EMPTYASNULL
IGNOREHEADER AS 0
TRUNCATECOLUMNS
""" % creds
copy = dialect.CopyCommand(
tbl2,
data_location='s3://mybucket/data/listing/',
access_key_id=access_key_id,
secret_access_key=secret_access_key,
format='JSON',
truncate_columns=True,
delimiter=',',
ignore_header=0,
empty_as_null=True,
blanks_as_null=True,
)
assert clean(expected_result) == clean(compile_query(copy))
def test_delete_stmt_simplewhereclause1():
del_stmt = sa.delete(customers).where(customers.c.email == "*****@*****.**")
expected = """
DELETE FROM customers
WHERE customers.email = '*****@*****.**'"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_append__basic(kwargs, expected_query):
source = sa.Table('src', sa.MetaData(), sa.Column('value', sa.Integer))
target = sa.Table('trg', sa.MetaData(), sa.Column('value', sa.Integer))
command = dialect.AlterTableAppendCommand(source, target, **kwargs)
assert clean(compile_query(command)) == clean(expected_query)
def test_delete_on_comma():
del_stmt = sa.delete(ham).where(ham.c.id == hammy_spam.c.ham_id)
expected = """
DELETE FROM ham USING "ham, spam"
WHERE ham.id = "ham, spam".ham_id"""
assert clean(compile_query(del_stmt)) == clean(expected)
def test_delete_stmt_nowhereclause():
del_stmt = sa.delete(customers)
assert clean(compile_query(del_stmt)) == "DELETE FROM customers"