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Do you have a feature request or a good idea for how to improve PostgreSQL? You can use this forum to let us know. (This is an experiment; see http://www.postgresql.org/support/ for more offical ways to contact the PostgreSQL project. Please report actual bugs and conduct development discussions there.)

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  1. MERGE/UPSERT/REPLACE

    Insert, if unique constraint violation then update; or update, if not found then insert.

    734 votes
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      started  ·  6 comments  ·  Flag idea as inappropriate…  ·  Admin →
    • parallel query option

      Rationale:
      We are running a BI w/mid-size data warehouse. PostgreSQL scales reasonably well for the BI app - i.e. when there is enough users running dashboards, ad-hoc queries, etc the server is as busy as expected.
      HOWEVER when running the ETL overnight most of the processors are iddle - BECAUSE the 1 process would only utilize one processor (core).
      And - trust me on this - i simply do not want to listen to smart advice like "why don't you write parallel ETL" or similar :)
      There are other databases having this functionality so why not PostgreSQL?

      545 votes
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        started  ·  10 comments  ·  Flag idea as inappropriate…  ·  Admin →
      • 385 votes
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          started  ·  3 comments  ·  Flag idea as inappropriate…  ·  Admin →
        • pl/sql packages (like Oracle)

          developer feature for clustering my scripts into logical units.

          310 votes
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            5 comments  ·  Flag idea as inappropriate…  ·  Admin →
          • Better administration and monitoring tools

            If yes, what specific functionality is needed?

            287 votes
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              12 comments  ·  Flag idea as inappropriate…  ·  Admin →
            • In-memory table

              Table placed only in RAM, visibility for all

              184 votes
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                3 comments  ·  Flag idea as inappropriate…  ·  Admin →
              • 169 votes
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                  5 comments  ·  Flag idea as inappropriate…  ·  Admin →
                • Allow update table a,b,c = (select x,y,z )

                  Allow to update multiple field in a table with a subselect

                  139 votes
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                    planned  ·  5 comments  ·  Flag idea as inappropriate…  ·  Admin →
                  • Query progress, reported by percentage in pg_stat_activity.

                    This wouldn't need to be perfectly accurate or linear, but would help admins know how far along a long running query was in executing its plan. Even better would be a way to add to EXPLAIN output what part of the plan was executing and its percentage progress.

                    118 votes
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                      planned  ·  0 comments  ·  Flag idea as inappropriate…  ·  Admin →
                    • 101 votes
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                        planned  ·  1 comment  ·  Flag idea as inappropriate…  ·  Admin →
                      • Wildcards in Full-text search

                        Needed wildcards:
                        * - stands for a string of characters of any length
                        ? - stands for zero or one character
                        # - stands for exactly one character.
                        They can appear any times in any part of word. Thanks.

                        96 votes
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                          2 comments  ·  Flag idea as inappropriate…  ·  Admin →
                        • RMAN like incremental and differential backups

                          At present there is only one way of backing up a big databases in PG: full hot cluster backup with archived WAL sets. This method is insufficient in case of limited storage space and low time recovery. PG needs native incremental and differential block level backups for more scalability of database. There is some 3rd party efforts on that but definitely need native facility tools.

                          84 votes
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                            3 comments  ·  Flag idea as inappropriate…  ·  Admin →
                          • Parameters in the anonymous code blocks (like in Oracle)

                            Sample:

                            do
                            $$
                            begin
                            insert into test_table(id, name) values(:ID, :Name);
                            end
                            $$;

                            69 votes
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                              0 comments  ·  Flag idea as inappropriate…  ·  Admin →
                            • Internal time service, instead of crond

                              Internal time service which would be capable call stored procedure in time or periodicaly. Service can have properties similar to cron's.

                              67 votes
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                                2 comments  ·  Flag idea as inappropriate…  ·  Admin →
                              • SQL/MED datalinks

                                Implement datalink datatype, as specified by SQL/MED.

                                Implement additional operations on datalinks, such as reading and writing contents of files pointed to by datalinks.

                                This could be very useful for content management, workflow applications, etc... Right now this is rather clumsy, because some data is in a database and some is in files...

                                63 votes
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                                  2 comments  ·  Flag idea as inappropriate…  ·  Admin →
                                • Add DEFERRED option to check constraints

                                  To improve data consistency foreign keys and simple row based checks isn't always enough. Sometimes you would like to write a stored procedure that does more advanced checks. This is fine until you would like to make that advanced constraint deferred which is not possible. "Only foreign key constraints currently accept this clause. All other constraint types are not deferrable." - http://www.postgresql.org/docs/8.4/interactive/sql-createtable.html I request deferrable check constraints!

                                  59 votes
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                                    planned  ·  1 comment  ·  Flag idea as inappropriate…  ·  Admin →
                                  • case insensitive

                                    Allow db columns in UTF-8 databases to be case insensitive to sorting / selecting. From what I understand this is not possible. I've looked everywhere. It is possible in lots of other DBs from my experience and would be very useful. There is UPPER but that would reduce performance.

                                    53 votes
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                                      3 comments  ·  Flag idea as inappropriate…  ·  Admin →
                                    • CREATE ASSERTION, or CHECK constraints with subselects

                                      With tables that are not updated frequently, and when I'm fully aware of the performance implications, I'd like to have as many data integrity constraints as possible. I'm fully aware it can be burdensome to implement, but I cannot think of anything else to improve my current Postgres experience. Thanks for this feedback tool :)

                                      43 votes
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                                        1 comment  ·  Flag idea as inappropriate…  ·  Admin →
                                      • Cluster servers

                                        Cluster server means two or more servers share the same db disks in the san and accross network also share their memory like in oracle RAC.
                                        This feature would be very effective in postgresqş for high availibility

                                        42 votes
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                                          3 comments  ·  Flag idea as inappropriate…  ·  Admin →
                                        • foreign function

                                          like foreign table:

                                          CREATE FOREIGN FUNCTION
                                          name ( [ [ argmode ] [ argname ] argtype [ { DEFAULT | = } default_expr ] [, ...] ] )
                                          [ RETURNS rettype
                                          | RETURNS TABLE ( column_name column_type [, ...] ) ]
                                          [IMMUTABLE | STABLE | VOLATILE]
                                          [CALLED ON NULL INPUT | RETURNS NULL ON NULL INPUT | STRICT]
                                          [COST execution_cost]
                                          [ROWS result_rows]
                                          SERVER server_name
                                          [OPTIONS ( option 'value' [, ... ] )]

                                          options: schema_name, function_name

                                          41 votes
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                                            0 comments  ·  Flag idea as inappropriate…  ·  Admin →
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