improve the query

skyhit · skyhit · commit 092c69dc7a1e · 2017-06-20T08:05:08.000+08:00
diff --git a/queries/check_user_challenge_accessibility b/queries/check_user_challenge_accessibility
@@ -3,9 +3,9 @@ SELECT
     1
   FROM contest_eligibility ce
   INNER JOIN group_contest_eligibility gce ON gce.contest_eligibility_id = ce.contest_eligibility_id
-  INNER JOIN user_group_xref ugx ON ugx.group_id = gce.group_id
+  LEFT JOIN user_group_xref ugx ON ugx.group_id = gce.group_id
   WHERE ce.contest_id = @challengeId@
-  AND ugx.login_id = @user_id@) AS has_access
+  AND ((ugx.login_id = @user_id@ AND gce.group_id < 2000000) OR gce.group_id >= 2000000)) AS has_access
 , (SELECT
     1
   FROM contest_eligibility ce

Original file line number	Diff line number	Diff line change
`@@ -3,9 +3,9 @@ SELECT`
`3`	`3`	`1`
`4`	`4`	`FROM contest_eligibility ce`
`5`	`5`	`INNER JOIN group_contest_eligibility gce ON gce.contest_eligibility_id = ce.contest_eligibility_id`
`6`		`- INNER JOIN user_group_xref ugx ON ugx.group_id = gce.group_id`
	`6`	`+ LEFT JOIN user_group_xref ugx ON ugx.group_id = gce.group_id`
`7`	`7`	`WHERE ce.contest_id = @challengeId@`
`8`		`- AND ugx.login_id = @user_id@) AS has_access`
	`8`	`+ AND ((ugx.login_id = @user_id@ AND gce.group_id < 2000000) OR gce.group_id >= 2000000)) AS has_access`
`9`	`9`	`, (SELECT`
`10`	`10`	`1`
`11`	`11`	`FROM contest_eligibility ce`