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Speed up advisory fetching by manually crafting each where statement (add if exists)

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This commit is contained in:
Mustafa Gezen 2023-02-22 02:54:46 +01:00
parent c267eabf78
commit bb5159cf1c
Signed by untrusted user who does not match committer: mustafa
GPG Key ID: DCDF010D946438C1
1 changed files with 48 additions and 11 deletions
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57
apollo/db/advisory.py
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@ -42,21 +42,58 @@ async def fetch_advisories(
left outer join advisory_cves c on c.advisory_id = a.id
left outer join advisory_fixes f on f.advisory_id = a.id
where
((select product from vars) is null or exists (select name from advisory_affected_products where advisory_id = a.id and name like '%' || (select product from vars) || '%'))
and ((select before from vars) is null or a.published_at < (select before from vars))
and ((select after from vars) is null or a.published_at > (select after from vars))
and (a.published_at is not null)
and ((select cve from vars) is null or exists (select cve from advisory_cves where advisory_id = a.id and cve ilike '%' || (select cve from vars) || '%'))
and ((select synopsis from vars) is null or a.synopsis ilike '%' || (select synopsis from vars) || '%')
and ((select severity from vars) is null or a.severity = (select severity from vars))
and ((select kind from vars) is null or a.kind = (select kind from vars))
and ((select search from vars) is null or
ap.name like '%' || (select product from vars) || '%' or
a.published_at is not null
"""
where_stmt = ""
if product:
where_stmt += """
and exists (select name from advisory_affected_products where advisory_id = a.id and name like '%' || (select product from vars) || '%')
"""
if before:
where_stmt += """
and a.published_at < (select before from vars)
"""
if after:
where_stmt += """
and a.published_at > (select after from vars)
"""
if cve:
where_stmt += """
and exists (select cve from advisory_cves where advisory_id = a.id and cve ilike '%' || (select cve from vars) || '%')
"""
if synopsis:
where_stmt += """
and a.synopsis ilike '%' || (select synopsis from vars) || '%'
"""
if severity:
where_stmt += """
and a.severity = (select severity from vars)
"""
if kind:
where_stmt += """
and a.kind = (select kind from vars)
"""
if keyword:
where_stmt += """
and (ap.name like '%' || (select product from vars) || '%' or
a.synopsis ilike '%' || (select search from vars) || '%' or
a.description ilike '%' || (select search from vars) || '%' or
exists (select cve from advisory_cves where advisory_id = a.id and cve ilike '%' || (select search from vars) || '%') or
exists (select ticket_id from advisory_fixes where advisory_id = a.id and ticket_id ilike '%' || (select search from vars) || '%') or
a.name ilike '%' || (select search from vars) || '%')
"""
a += where_stmt
a += """
group by a.id
order by a.published_at desc
limit (select size from vars) offset (select page_offset from vars)