Citus Data is excited to announce the release of cstore_fdw 1.3. cstore_fdw is an open source columnar store extension for PostgreSQL that compresses your database tables and reduces disk I/O.
The changes in this release include:
ALTER FOREIGN TABLE ADD/DROP COLUMN ...support. You can now add/drop columns on existing cstore tables. Default values on newly added columns are also supported with some restrictions.
COPY FROMsupport. Column references in the COPY command is now supported. You can now specify list of columns to be copied from a file to a cstore table.
- Query performance improvements. Table row count estimation works better which allows the query planner to better prepare query plans.
- (Fix) Whole row references. You can now use row references in
function calls like
SELECT to_json(*) FROM cstore_table.
- (Fix) Insert concurrency. Deadlock issue during concurrent insert is resolved.
For installation and update steps, you can view the instructions on the cstore_fdw page on GitHub.
If you have questions or feedback for cstore_fdw, please contact us using the cstore-users Google group.
If you discover an issue when using cstore_fdw, please submit it to cstore_fdw’s issue tracker on GitHub.