Snowflake START WITH ... CONNECT BY syntax not recognized

[tglunde]

Snowflake dialect does not know about CONNECT BY

Fully reproducible code snippet
`from sqlglot import Dialects, parse_one, exp
from sqlglot.errors import ErrorLevel

raw = """
SELECT
TO_CHAR(ROUTING_ID) AS ROUTING_ID,
SUBSTR(PFAD, 4) AS PFAD
FROM
(
SELECT ROUTING_ID, SYS_CONNECT_BY_PATH(TEXT,' > ') AS PFAD
FROM BUSINESSOBJECTS.BO_SYS_BREADCRUMB_S_DVB_HUB
START WITH NVL(PARENT, 0) = 0
CONNECT BY PRIOR ID = PARENT
)
"""
for table in parse_one(raw, read="snowflake", error_level=ErrorLevel.IMMEDIATE).find_all(exp.Table):
print(table)`

Error:
sqlglot.errors.ParseError: Expecting ). Line 9, Col: 12.
_PATH(TEXT,' > ') AS PFAD
FROM BUSINESSOBJECTS.BO_SYS_BREADCRUMB_S_DVB_HUB
START WITH NVL(PARENT, 0) = 0
CONNECT BY PRIOR ID = PARENT
)

Official Documentation
https://docs.snowflake.com/en/sql-reference/constructs/connect-by

[tglunde]

@tobymao thx a lot for the quick reaction :-)

[mro-msandford]

Thanks so much for this! Upgrading from 17.8.6 to 18.5.1 seems to have solved the START WITH / CONNECT BY problem for me parsing Snowflake queries too.