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Results tagged with insert
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user 270100
A core statement in SQL that does what it says on the tin: inserts data into a table.
1
vote
How can I insert into a Postgres table with a unique constraint without waiting on concurren...
While the row-level locks don't seem to support "try-lock" behavior for pending inserts, an explicit call to pg_try_advisory_xact_lock(unique_key) could be used to insert in a non-blocking way. … INSERT INTO tabwithunique (key, value)
SELECT * FROM (.......) to_insert
WHERE pg_try_advisory_xact_lock($LOCKING_NAMESPACE_VALUE, to_insert.key)
This has some drawbacks:
Advisory locks only support …
- 121
1
vote
2
answers
2k
views
How can I insert into a Postgres table with a unique constraint without waiting on concurren...
BEGIN;
BEGIN;
INSERT INTO tabwithunique (key, value)VALUES (100, 111)ON CONFLICT DO NOTHING;→ INSERT 0 1
INSERT INTO tabwithunique (key, values)VALUES (100, 222)ON CONFLICT DO NOTHING;(blocks … Ideally, I would like an answer that works when inserting many rows at the same time using a insert-query like INSERT INTO tabwithunique (SELECT ...... …
- 121