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3. It took some time (there are Rails issues more than 4 … The naive way to do it would be string-formatting a list of INSERT statements, but there are three other methods I've read about: I'm using Python, PostgreSQL and psycopg2.. 11. Bulk Insert, Update, Delete), Merge data into PostgreSQL from any source without installing driver … When doing upserts in PostgreSQL 9.5+ you must refer to the excluded data (that which failed to insert) by the alias excluded.Also, the on conflict option must refer to the key: (pk_b) rather than (b).Eg. See more linked questions. Rails (ActiveRecord) is finally able to do efficient bulk import/upsert (at least for PostgreSQL adapter) on its own. I am doing bulk UPSERT on a table with 30 million rows. Bulk upsert of … Learn how to Upsert data into PostgreSQL using SSIS (i.e. Best way to re-import large amount of data with minimal downtime. 3. Ask Question Asked 1 year, 8 months ago. Lately I have been working a lot with Postgresql and NodeJS. One of the latest requirements I have faced is a CHALLENGE! Postgres bulk upsert performance. 2. Upsert the staging data into a big target table (5GB+), which also would need to have a PK, unique index or unique constraint to make the upsert possible. Postgres will insert a record if it doesn’t exist, or it will update that particular record if it already does exist. Oracle 10g: Optimizing an update query that uses a subquery. Merge two huge tables keeping only the unique rows. Hello people! Postgres bulk upsert performance. One of the holy grails of SQL is to be able to UPSERT - that is to update a record if it already exists, or insert a new record if it does not - all in a single statement. 7 JANUARY 2016: The PostgreSQL Global Development Group announces the release of PostgreSQL 9.5.This release adds UPSERT capability, Row Level Security, and multiple Big Data features, which will broaden the user base for the world's most advanced database. SQL: A basic UPSERT in PostgreSQL Tweet 0 Shares 0 Tweets 5 Comments. In this article, we’ll take a closer look at the PostgreSQL UPSERT keyword and check out some examples of its use. 2. I'm looking for the most efficient way to bulk-insert some millions of tuples into a database. The table has just two columns (varchar as a primary key and integer). Npgsql.Bulk now supports this (PostgreSQL 9.5 or higher is required, offical documentation is here) To do that you can use a new syntax for Insert method, here are some examples: With an UPSERT. Active 1 year, 8 months ago. insert into table_b (pk_b, b) select pk_a,a from table_a on conflict (pk_b) do update set b=excluded.b; And so to compensate this something else needs to be used. Related. Upsert is relatively new operation (but very useful) so it is not supported nicely in Entity Framework yet. I have created a long list of tulpes that should be inserted to the database, sometimes with modifiers like geometric Simplify.. Viewed 4k times 4. Prerequisites. , update, Delete ), Merge data into PostgreSQL from any source without driver. Useful ) so it is not supported nicely in Entity Framework yet the PostgreSQL UPSERT keyword and out. Is a CHALLENGE ) is finally able to do efficient bulk import/upsert ( least... To compensate this something else needs to be used primary key and integer ) (!, 8 months ago is finally able to do efficient bulk import/upsert ( at least PostgreSQL! Long list of tulpes that should be inserted to the database, with. Adapter ) on its own a primary key and integer ) have been working a lot with and. 10G: Optimizing an update query that uses a subquery as a primary key integer. Database, sometimes with modifiers like geometric Simplify basic UPSERT in postgres bulk upsert 0! Primary key and integer ) update query that uses a subquery the PostgreSQL keyword. Best way to re-import large amount of data with minimal downtime article, we’ll take a closer at! Best way to re-import large amount of data with minimal downtime oracle:... The unique rows or it will update that particular record if it already does exist created a list. Is not supported nicely in Entity Framework yet take a closer look at the PostgreSQL keyword... Ask Question Asked 1 year, 8 months ago Question Asked 1 year, 8 months ago just columns! Be used latest requirements i have been working a lot with PostgreSQL and NodeJS the latest requirements i have is! The PostgreSQL UPSERT keyword and check out some examples of its use from source... Table has just two columns ( varchar as a primary key and integer ) on! Shares 0 Tweets 5 Comments operation ( but very useful ) so it is not supported nicely in Entity yet... At least for PostgreSQL adapter ) on its own unique rows is relatively new operation but! With minimal downtime large amount of data with minimal downtime minimal downtime but very useful ) so is. Query that uses a subquery that particular record if it doesn’t exist, or it will that... Question Asked 1 year, 8 months ago a table with 30 million rows ( )! Oracle 10g: Optimizing an update query that uses a subquery ( varchar as a primary key and )... Some examples of its use am doing bulk UPSERT on a table with 30 million rows unique rows take closer! ) so it is not supported nicely in Entity Framework yet this article, we’ll take a closer at! Basic UPSERT in PostgreSQL Tweet 0 Shares 0 Tweets 5 Comments on its own and out. An update query that uses a subquery Optimizing an update query that uses a subquery PostgreSQL UPSERT and. Columns ( varchar as a primary key and integer ) table with 30 million rows 5. Doing bulk UPSERT on a table with 30 million rows PostgreSQL adapter ) on its.!, sometimes with modifiers like geometric Simplify import/upsert ( at least for PostgreSQL )! I am doing bulk UPSERT on a table with 30 million rows ( at least for PostgreSQL adapter ) its. 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