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已經有一段時間了，但我現在只關心這一點。Rails：遷移後的奇怪查詢
在Rails 3.2中，每次運行遷移（rake db:migrate）時，在執行遷移的正常SQL日誌之後，我收到了一堆非常混亂的查詢。
在這裏，他們是：
(0.8ms) INSERT INTO "schema_migrations" ("version") VALUES ('20150623124632')
(5.6ms) COMMIT
(1.2ms) SELECT "schema_migrations"."version" FROM "schema_migrations"
(5.9ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'addresses'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(4.2ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'authentications'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.3ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'balancing_transactions'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.6ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'billing_informations'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.4ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'bills'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.1ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'checkins'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.2ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'converters'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.2ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'copass_transactions'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.2ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'copasser_preferences'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.2ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'copassers'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.2ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'cospace_comments'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.0ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'cospace_copasser_interactions'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.1ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'cospace_event_type_associations'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.2ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'cospace_pictures'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.1ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'cospace_recommends'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.1ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'cospace_tag_votes'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.3ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'cospace_transaction_templates'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.2ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'cospace_type_associations'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.1ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'cospace_wishlists'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.1ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'cospaces'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.2ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'countries'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.2ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'coupons'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.4ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'currency_accounts'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(6.9ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'delayed_jobs'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.4ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'event_types'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.2ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'external_transactions'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.3ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'faqs'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.5ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'finances'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.4ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'friend_suggestions'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.2ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'friendship_notifications'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(9.0ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'friendships'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.4ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'group_copassers'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(6.9ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'groups'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.conname
(5.2ms)
SELECT t2.relname AS to_table
, a1.attname AS column
, a2.attname AS primary_key
, c.conname AS name
, c.confdeltype AS dependency
, c.confupdtype AS update_dependency
, c.condeferrable AS deferrable
, c.condeferred AS deferred
, c.convalidated AS valid
FROM pg_constraint c
JOIN pg_class t1 ON c.conrelid = t1.oid
JOIN pg_class t2 ON c.confrelid = t2.oid
JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid
JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid
JOIN pg_namespace t3 ON c.connamespace = t3.oid
WHERE c.contype = 'f'
AND t1.relname = 'in_progress_transactions'
AND t3.nspname = ANY (current_schemas(false))
ORDER BY c.
# [TRUNKED BECAUSE OF Stackoverflow LIMITATION]
它從來沒有破壞任何東西，因爲那些只是SELECT S，但他們都非常難看，並阻止我輕鬆地檢查一切正常。
任何想法這是從哪裏來的？