1)正常情况下,parallel应用到所有表
select
/*+ PARALLEL(8)*/
lif.loan_product_sub_type, laf.district_no, laf.dept_name
from qf_scratch_ds.qf_risk_loan_issue_fact lif
left outer join qf_scratch_ds.qf_account_repay_daily_fact rdf
on lif. ...
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