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Use "UPSERT" to set schema version when possible #157

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dhui opened this issue Jan 22, 2019 · 0 comments

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enhancement

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dhui commented Jan 22, 2019

Is your feature request related to a problem? Please describe.
Cleaner SQL. e.g. single statement

Describe the solution you'd like
RDBMSs that support UPSERT (checked if implemented):

Postgres (9.5+ only e.g. 9.4 doesn't support upsert) - https://www.postgresql.org/docs/9.5/sql-insert.html
MySQL - https://dev.mysql.com/doc/refman/5.5/en/insert-on-duplicate.html
SQLite - https://www.sqlite.org/lang_UPSERT.html
CockroachDB - https://www.cockroachlabs.com/docs/stable/upsert.html
Cassandra (INSERT and UPDATE already perform UPSERT)
- https://docs.datastax.com/en/cql/3.3/cql/cql_reference/cqlInsert.html
- https://docs.datastax.com/en/cql/3.3/cql/cql_reference/cqlUpdate.html
MongoDB (option for update) - https://docs.mongodb.com/manual/reference/method/db.collection.update/#upsert-option

Describe alternatives you've considered
N/A

Additional context
RDBMSs that do not support UPSERT:

ClickHouse: https://clickhouse.yandex/docs/en/query_language/insert_into/

dhui added the enhancement label

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