Our test results indicate that vacuum can be up to 3 times faster when using multiple parallel workers. There are two vacuum-related improvements: parallel vacuuming of indexes and allowing for index-only scans of append only data.įirst, with parallel vacuum, Postgres can now use multiple processor threads to perform vacuum operations faster. The autovacuum feature cleans up dead hidden rows so you don’t have bloat and is similar to Java’s garbage collector. Vacuum up to 3X fasterįor those that are new to PostgreSQL, vacuuming is part of the multiversion concurrency system and removes dead tuples or rows that are created whenever a record is changed or deleted.
POSTGRESQL 13 UPGRADE
Let’s go through some key highlights and give you reasons to upgrade today. The continuous improvement of important but lesser-known features is a real testament to the power and productivity of an open source project. You’ll find changes that include performance, usability, and security improvements, among others. This year there’s not one headline-grabbing feature, but rather a wide variety of improvements along with updates to previously released features. Then the database should be ready for upgrade to PostgreSQL 13.PostgreSQL 13 is here, and as always EDB is proud to be among the many global contributors who made this happen. REVOKE SELECT ON TABLE "pg_catalog"."pg_pltemplate" FROM "reader" GRANT SELECT ON TABLE "pg_catalog"."pg_pltemplate" TO PUBLIC In that case you have to run the inverse statements: GRANT ALL ON TABLE "pg_catalog"."pg_pltemplate" to "postgres" GRANT SELECT ON TABLE "pg_catalog"."pg_pltemplate" TO "reader" ĮRROR: postgres contains pg_pltemplate modifications. REVOKE ALL ON TABLE "pg_catalog"."pg_pltemplate" FROM "postgres" The script might return something like this: - Name: TABLE "pg_pltemplate" Type: ACL Schema: pg_catalog Owner: postgres Any non-default modifications to role_table_grants regarding pg_pltemplate would cause a fatal error during pg_upgrade process, basically it does following: for db in $(psql -tc "SELECT datname FROM pg_database ")ĭump=$(pg_dump -schema-only -quote-all-identifiers $ contains pg_pltemplate modifications. I wrote a bash script to perform additional upgrade checks (it does NOT replace pg_upgrade -check).
POSTGRESQL 13 HOW TO
This can be checked (also the result should be empty) using: pg_dump -port 5432 -schema-only -quote-all-identifiers | grep pg_pltemplateĪny ideas how to get rid of the pg_catalog.pg_pltemplate table altogether? REVOKE SELECT ON TABLE "pg_catalog"."pg_pltemplate" FROM PUBLIC REVOKE ALL ON "pg_catalog"."pg_pltemplate" FROM postgres ĭoesn't really help as the REVOKE statement gets saved to schema: pg_restore: error: could not execute query: ERROR: relation "pg_catalog.pg_pltemplate" does not existĬommand was: REVOKE ALL ON TABLE "pg_catalog"."pg_pltemplate" FROM "postgres" REVOKING these privileges: REVOKE SELECT ON "pg_catalog"."pg_pltemplate" FROM PUBLIC Postgres | PUBLIC | postgres | pg_catalog | pg_pltemplate | SELECT | NO | YES Postgres | postgres | postgres | pg_catalog | pg_pltemplate | INSERT | YES | NO Postgres | postgres | postgres | pg_catalog | pg_pltemplate | SELECT | YES | YES
POSTGRESQL 13 UPDATE
Postgres | postgres | postgres | pg_catalog | pg_pltemplate | UPDATE | YES | NO Postgres | postgres | postgres | pg_catalog | pg_pltemplate | DELETE | YES | NO Postgres | postgres | postgres | pg_catalog | pg_pltemplate | TRUNCATE | YES | NO Postgres | postgres | postgres | pg_catalog | pg_pltemplate | REFERENCES | YES | NO Postgres | postgres | postgres | pg_catalog | pg_pltemplate | TRIGGER | YES | NO
Grantor | grantee | table_catalog | table_schema | table_name | privilege_type | is_grantable | with_hierarchy So far it appears that this query should return an empty result, otherwise you're in troubles: $ psql -c "SELECT * FROM information_schema.role_table_grants WHERE table_name='pg_pltemplate' " It appears to be an old issue, however the upgrade script does not check these templates. Pg_restore: error: could not execute query: ERROR: relation "pg_catalog.pg_pltemplate" does not exist Pg_restore: from TOC entry 17728 0 0 ACL TABLE "pg_pltemplate" postgres However during the actual upgrade the process fails miserably due to pg_catalog.pg_pltemplate table: pg_restore: creating ACL "pg_catalog.TABLE "pg_pltemplate"" The check returns: *Clusters are compatible* new-options=' -c config_file=/etc/postgresql/13/main/nf' \ old-options=' -c config_file=/etc/postgresql/12/main/nf' \ new-datadir=/var/lib/postgresql/13/main \ old-datadir=/var/lib/postgresql/12/main \ I'm trying to upgrade PostgreSQL 12 cluster to version 13, with following script: /usr/lib/postgresql/13/bin/pg_upgrade -check \
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