How to solve duplicate key value violates unique constraint postgres java. pk/sizrk/trading-market-api-free.

psql -f temp. The duplicate key value is (email@gmail. All) private Collection<Profession> professions; // getters and setters. Why would Postgres attempt to use that primary key again? Or, is this most likely my application (or Django's ORM) causing this? Nov 18, 2021 · "duplicate key value violates unique constraint" despite existence check 1 PostgreSQL multiple upsert without duplicates rises an error Dec 1, 2020 · CREATE TABLE foo ( id uuid NOT NULL primary key seq integer NOT NULL, CONSTRAINT seq_key UNIQUE (seq) deferrable initially immediate --<< this ); By declaring the constraint as deferrable it will be checked at the end of the UPDATE statement (to be more precise: at the end of the transaction) rather than row-by-row. Dec 7, 2022 · For me that didn't work - because of the broken index, there were duplicate keys in the table. PSQLException: ERROR: duplicate key value violates unique constraint "student_pkey". As mentioned before, I run the code below to get the SQL command to reset the id-s: python manage. SELECT setval(. If incoming data violates any constraints the replication will stop. 5. c1 data_type, c2 data_type, c3 data_type, UNIQUE (c2, c3) ); The combination of values in column c2 and c3 will be unique across the whole table. PSQLException: ERROR: duplicate key value violates unique constraint "mytable_modified_pkey And when I check mytable, I do not see any id that matches 2556. Manually assigning a value to an auto-incrementing field doesn’t update the field’s sequence, which might later cause a conflict. Detail: Key (number)=(CHILD6) already exists. Apr 17, 2022 · The best way to prevent such a situation is to define generated primary keys with GENERATED ALWAYS AS IDENTITY, so that it becomes more difficult to override the generated value. To resolve the issue, you need to set your users_id_seq sequence value to the MAX(id) of your existing users. That violation threw an exception. Jun 2, 2022 · Keep in mind that skipping a transaction by calling pg_replication_origin_advance is just one of the resolutions that users can choose, users can also change data or permissions on the subscriber to solve the conflict. Johnston Re: Duplicate key value violates unique constraint at 2020-03-16 16:27:09 from Tom Lane Browse pgsql-bugs by date Sorry I realise now my answer is misleading, the issue is not with postgres but with the npgsql nuget package. group by vss_order_item_id. Other users then can see that and other categories. Szczegˇ│y: Key (id)=(1) already exists. That exception caused the transaction and the initial commit to rollback. db. Johnston Browse pgsql-admin by date May 12, 2021 · rg. INSERT. Caused by: org. Mar 7, 2020 · On 3/7/20 11:29 AM, Ashkar Dev wrote: > Hi all, > > how to fix a problem, suppose there is a table with id and username > > if I set the id to bigint so the limit is 9223372036854775807 Sorry I realise now my answer is misleading, the issue is not with postgres but with the npgsql nuget package. Jan 2, 2024 · Duplicate key value violates unique constraint "b_name_key" after save @ManyToOne entity by Spring-boot, Spring-data, Hibernate 1 ERROR: duplicate key value violates unique constraint Dec 1, 2022 · The java program use Hibernate and lombok. a in' as well as with 'where not exists' The code I use right now is the following: May 28, 2024 · That snippet doesn't seem to set post. Then drop the pointless table validvalues - unless it has other uses: DROP TABLE validvalues; Else, at least drop one of the two redundant UNIQUE constraints unique_value and unique_value_new. Dec 11, 2018 · Then, use the following query to insert while ignoring duplicates: INSERT INTO permission (username, permission) SELECT username, permission. My Postgres database does in fact have a myapp_mymodel object with the primary key of 1. nspname as schema_name, co. Foreign-Data-Wrappers is recommended for Live Feeds / very large data sets, since you don't need to create an temporary copy (for errors / skip columns / skip rows Oct 28, 2016 · Then in your code just treat the SQLException as you want. Oct 3, 2016 · Key (id)=(2556) already exists. I have tried to check with either 'where not y. When you manually inserted an ID value of '1', Postgresql did not update the sequence to take this into account. vendor_sale_staging. Mar 2, 2023 · でも、まだ duplicate key value のエラーが発生する、嫌になって一回レコードを全件削除し、 setval を 1 にして初期の状態に戻して新規レコードを登録してみたら採番が 1 からじゃない！なんやねん！ こんな状況になってました。 Sep 7, 2023 · Unique violation: 7 ERROR: duplicate key value violates unique constraint. Detail: Key (id)=(1680) already exists. が発生してしまった。. } But for some inexplicable reason this fails when a child is already present in the database: Caused by: org. This gave a PSQLException: ERROR: duplicate key value violates unique constraint "class_pkey" Detail: Key (id)=(17) already exists. Sep 14, 2022 · Jira Software. ERROR: duplicate key value violates unique constraint "uk_d9najy24fium4vkivgwjuf0hw" Detail: Key (roles_id)=(2) already exists. Mar 9, 2022 · A common coding strategy is to have multiple application servers attempt to insert the same data into the same table at the same time and rely on the database unique constraint to prevent duplication. Manage any business project Nov 26, 2015 · Assign to NEW by key in a Postgres trigger; Assuming (since it's not defined in the question) that people. PSQLException: ERROR: duplicate key value violates unique constraint "childs_pkey". The SQL standard says that uniqueness Aug 29, 2016 · 2. So my deviceserial have to be unique. FROM pg_constraint co. ; nested exception is org. UniqueViolation) duplicate key value violates unique constraint "some_table_pkey" DETAIL: Key (id)=(2) already exists. The value of the column c2 or c3 needs not to be unique. May 18, 2021 · However this update fails with duplicate key value violates unique constraint because for Bob there already is a row with the key ("Bob", "bar"). If you have a sequencer on the field (like with a serial column type), it is likely out of sync with the table because you have done an insert and supplied a value (rather than letting the "default" mechanism handle it by getting the nextval from the sequencer). その後、データ更新などの処理を行うと、. When you attempt to create a new user without specifying the id, it pulls the value from the sequence (1), and you get a unique violation because you already have a user with id 1. 0. 解決方法. Just allow Postgres the generate the number. May 2, 2011 · ERROR: duplicate key value violates unique constraint "distributors_name_key" DETAIL: Key (name)=(aaa) already exists. But, a fast hack to load something is to use distinct on rather than distinct: SELECT Mar 29, 2019 · 7. A SELECT did not find all the duplicate keys. Having two of those does nothing useful. Mar 2, 2024 · But drop the FK constraint first. This is referred to as a conflict. Run the file and save its output in a way that doesn't include the usual headers, then run that output. Create a sequence/identity column with datatype bigint. and record will not be inserted. oid, true) as constraing_def. answered Dec 11, 2018 at 10:50. Dec 15, 2019 · You can avoid the whole overhead of managing entity id by simply annotating the field Student. relname; How to use (from postgres wiki): Save this to a file, say 'reset. The values inserted during the migration contained the primary key value, so the sequence behind the column wasn't incremented and is kept at 1. Jan 17, 2017 · Concurrent transactions result in race condition with unique constraint on insert 6 Enforce uniqueness across a one-to-many-to-many bridged relationship when constraining to one-to-many How to Solve Duplicate Key Value Violates Unique Constraint in PostgreSQL PostgreSQL is a powerful and popular relational database management system (RDBMS). , col_1 varchar. I assume I'm missing something though, otherwise it wouldn't be in the manual, so any information is appreciated! At a later point some records are inserted without id and they fail with the error: Error: duplicate key value violates unique constraint. Identify the column or columns with the unique constraint. "lazy_product_stock" USING BTREE ("product_id","warehouse_id"); Although running the relevant insert on its own with duplicate values it has no problem with it. This allows you to specify org. py sqlsequencereset inventory Piping the python manage. The most generic catch clause is the following one: catch (SQLException e) {. When we are using the unique constraint, an index on one or more columns generate automatically. At seemingly random times we get an exception "postgresql duplicate key violates unique constraint. We can determine the sequence name with pg_get_serial_sequence(). dataframe with more than one partition I get the following error: IntegrityError: (psycopg2. CREATE UNIQUE INDEX CONCURRENTLY "lazy_product_stock_comb_idx2" ON "public". However, using PostgreSQL, the following fails: CREATE TABLE pg_temp. That attempted insert violated the unique constraint of the primary key. ERROR: duplicate key value violates unique constraint "t_types_of_dementia_pkey" I want that this new tables gets populated by entries of others tables from other dbs. pg_get_constraintdef(co. (complicated) Oct 9, 2020 · A short description of the code: User can create a category. e. Let's check uniqueness, just in case. If the update is made in the right order (starting from the minimum number), the update would work. If the update changes row by row, each of a time, then it might break. unique. ; Here is the definition of the relevant SEQUENCE and TABLE: CREATE SEQUENCE transaction_id_seq AS bigint; Oct 11, 2021 · My environment is basically an API backed by Postgres. PostgreSQL uses unique indexes to implement unique constraints, so the effect is the same, with an important caveat: you can't perform upserts ( ON CONFLICT DO UPDATE) against a unique index like you would against a unique Jul 24, 2019 · duplicate key value violates unique constraint "ts_kv_pkey"=》HikariPool-1 - Connection is not available=》java. Most probably your sequence got out of sync caused by other statements. If you do it from allplcation level, the exception will be thrown with a message similar to this. Dec 26, 2022 · 1. Detail: Key (transaction_id)=(67109) already exists. In table description (\d in psql) you can tell unique constraint from unique index. the solution can be found sometimes somewhere else: the relationship between the entities 'profession' and 'professiongroup' is wrong. This message occurs when you create a duplicate key. (hacky, but works) Postgres manually alter sequence; Import the items without hardcoding their id-s. The code is adding entities in a loop to a List and then trying to add them to the database using AddRangeAsync . duplicate key violates a unique constraint. SQLで直接以下コマンドを叩く. Jan 18, 2024 · [23505] ERROR: duplicate key value violates unique constraint but the same code pointing to SQL Server is fine. . 1 On the publisher side, create a table and a publication. PSQLException: ERROR: duplicate key value violates unique constraint "meteo_record_pkey". Chapter 31. 4. Mar 16, 2020 · Re: Duplicate key value violates unique constraint at 2020-03-16 16:23:44 from David G. They can then press 'follow' on a category and then they are saved to a database. Some of the solutions proposed talks about sequence, but i am not using any Aug 1, 2023 · PostgreSQL allows you to create a UNIQUE constraint to a group of columns using the following syntax: CREATE TABLE table (. utils. This could be because of a manual import, that is often the case with for me when I have had Aug 19, 2021 · 1. " I do think I know what our problem"s" are but I don't want to make changes to the code without having a reproducible test case. A SERIAL column is populated with values from a sequence that keeps track of the next available value. Jul 3, 2019 · You inserted rows manually into the table providing explicit values for the id column, which means the sequence was not advanced as no default value was used. Posted at 2017-03-18. Jul 11, 2013 · IntegrityError: duplicate key value violates unique constraint "myapp_mymodel_pkey" DETAIL: Key (id)=(1) already exists. Hibernate/Postgres: duplicate key value violates unique constraint. IntegrityError: duplicate key value violates unique constraint because of the save Jun 25, 2014 · Obviously, from the message, you are trying to insert a value in a column that already exists there. PSQLException: ERROR: duplicate key value violates unique constraint "task_dependencies_pk" May 2, 2022 · And for FOREIGN KEY constraints: The referenced columns must be the columns of a non-deferrable unique or primary key constraint in the referenced table. id is a serial column with an attached sequence, you'll want the next value from the sequence. It is compatible with a group of column constraints or column constraints and a table constraint. Conflicts #. You can check by doing: select vss_order_item_id, count(*) from imp. May 4, 2022 · I am trying to update an existing instance from a model in Django admin interface but I'm getting django. com). Jira Work Management. Aug 6, 2018 · Duplicate key value violates unique constraint "hibernate_sequences_pkey" exception by Postgres. Mar 31, 2018 · ERROR: duplicate key value violates unique constraint "pk_machine" DETAIL: Key (id, seq)=(cat-2, 0) already exists. And clearly we also have to deal with properly merging the num_stock value of the two rows. if I try to make simple insert to the Postgresql table? I made some insert via csv file to the table, and now I am not able to make simple insert into the table. The “duplicate key violates unique constraint” error notifies the caller that a retry is needed. Key (favourite_id)=(17) already exists. Hibernate lets Postgresql use the sequence to generate the ID, but the first value produced is '1', which clashes. However, our UPDATE query does not affect the primary key. For INSERT's Postgres supports ON CONFLICT DO , but it looks like there is no equivalent for UPDATE. If you want more information, check this. In dbeaver table users_role have constraint uk_d9najy24fium4vkivgwjuf0hw with type UNIQUE_KEY, so that's the problem, but how to change type to non-unique? Many users may have same role, so it is necessary for me Jun 19, 2012 · Duplicate key value violates unique constraint "inventory_part_pkey" DETAIL: Key (part_id)=(1) already exists. You specified SteamID and SteamID64 as unique, however when you're initializing your user you're not setting those fields to any value, and if your database isn't set up to automatically generate unique values for columns that weren't provided a value, they will get some default value assigned to them, likely a 0 in this case, which on the second insert will violate the uniqueness constraint. py sqlsequencereset inventory | python manage. User'. To fix it, you can bump the sequence to the current max value. See here or here for answers on how to fix the sequence problem. create table some_table( st_id bigint generated always as identity. System. Jira Service Management. Use FDW (like this example). IntegrityError) duplicate key value violates unique constraint "pg_type_typname_nsp_index" DETAIL: Key (typname, typnamespace)=(test1, 2200) already exists. Nov 8, 2020 · Msg 2627, Level 14, State 1, Line 2 Violation of UNIQUE KEY constraint 'IX_User_Email'. As a solution for your present problem, either delete the conflicting manually inserted rows or reset the sequence to a value higher than any existing id in the table. It's up to the programmer how to handle this exception. If one exists, decide whether to update it instead of creating a new record. edited Dec 11, 2018 at 14:30. postgresql. This is not an issue with Django. I don't get the reason for this. OutOfMemoryError: Java heap space #1879 Closed jasonhuang1982 opened this issue Jul 24, 2019 · 3 comments Oct 11, 2021 · Original exception was: (psycopg2. FROM temp_permission. We ran into a unique situation where one of the user came back saying that they are running into following error: postgresql duplicate key violates unique constraint Oct 16, 2018 · duplicate key value violates unique constraint "auth_user_username_key" DETAIL: Key (username)=([email protected]) already exists. Where my_obj_pk is a primary key of a table mapped to Spring entity and based on id: @Entity @Table(name = " Sep 25, 2013 · Problem Overview. Please add the action code and the model configuration code in the question itself. To avoid it you have to make sure that the check for existence of a table, is done after some common advisory lock is taken: Mar 7, 2020 · duplicate key value violates unique constraint at 2020-03-07 19:29:51 from Ashkar Dev; Responses. When inserting explicit IDs (during seeding), PostgreSQL doesn't update the sequence value for auto-generated columns; this results in unique constraint violations when the user next attempts to insert a new entity. Feb 24, 2016 · You may have duplicate values in the staging table. 31. A normal insert - without specifying the PK value - calls the sequence, get the 1, which already exists in the table. it should have been: @Column(unique = true) private String name; @ManyToMany(cascade = CascadeType. Hasdata() method in the OnModelCreating() method if you generate primary key values that start from 1, when you next attempt to insert values into the database with ef-core it will attempt to re-use those values, the workaround is to call those Mar 18, 2017 · postgres で INSERT時に 「id (主キー) がユニークじゃないよ」と怒られる。. Empty. Logical replication behaves similarly to normal DML operations in that the data will be updated even if it was changed locally on the subscriber node. Jul 15, 2014 · ERROR: duplicate key value violates unique constraint "tableA_pkey" DETAIL: Key (id)=(47470) already exists. out. errors. If you are inserting a new record, generate a new unique key value for the unique field. Apparently the id got defined as a sequence: Each failed insert increases the pointer in the sequence till it increments to a value that no longer exists and the queries succeed. Uniqueness. IDの自動採番が、なぜかズレてしまっているため今回の事態に May 23, 2022 · PostgreSQL: ERROR: duplicate key value violates unique constraint Load 7 more related questions Show fewer related questions 0 Feb 24, 2020 · SQLSTATE [23505]: Unique violation: 7 ERROR: duplicate key value violates unique constraint "lkp_locations_pkey"↵DETAIL: Key (id)= (1) already exists. Oct 31, 2022 · ERROR: duplicate key value violates unique constraint "pg_class_relname_nsp_index" DETAIL: Key (relname, relnamespace)=(log_id_seq, 2200) already exists. Nov 19, 2023 · Check for any existing record with the same key value. sql -o temp. public interface MeteoRecordRepository extends JpaRepository<MeteoRecord, Long> {. The statement has been terminated. -- Postgres v10 and update. And here on how to convert your column to an identity column. (SQL: insert into "lkp_locations" ("tex If I Replay the XHR ,the ID is increased, until I have an ID available ,and then the value is stored. With this you can simply leave the id field empty and at insert time an unique id will be assigned to the entity. Nov 24, 2017 · When I updating Task dependencies sometimes it throws exception org. Feb 2, 2012 · Django uses PostgreSQL’s SERIAL data type to store auto-incrementing primary keys. There's no model configuration that shows Id is generated by the database. It may be convenient to you to use the table name instead of index name: Dec 24, 2017 · I experienced this same issue after seeding data for my tests and then trying to insert a new entity. The reason is that you are not violating a unique field, but a unique constraint. Following on from this question, when I try to create a postgresql table from a dask. – user330315. The solution that fixes this issue states:. Jan 4, 2021 · Later I will make upsert query on device_usage_test1. PostgreSQL. You need to sync the sequence using setval() with your actual values if you do that: Feb 19, 2020 · 'ERROR: duplicate key value violates unique constraint "tableNameBuffer_name_idx" DETAIL: Key (name)=(data) already exists. Enter fullscreen mode Exit fullscreen mode In PostgreSQL, the UNIQUE CONSTRAINT is used to maintain the individuality of the values that we store into a field or a column of the table. test=# insert into master values (0, 0); INSERT 0 1. 'duplicate key value violates unique constraint "*******" '. select setval('テーブル名_重複してるカラム_seq',(select max(id) from テーブル名)); hogeテーブルのidでエラーが発生して ORDER BY S. ON CONFLICT (username, permission) DO NOTHING; Afterwards, you may drop the temp table. Oct 7, 2020 · duplicate key value violates unique constraint "lazy_product_stock_comb_idx2" the index. postgres=# CREATE TABLE tab (id integer); Nov 1, 2014 · I tried testing around a bit and it seems that creating the UNIQUE INDEX was sufficient to ensure uniqueness - trying to add duplicate data resulted in duplicate key value violates unique constraint 'package_tmp_id_idx'. duplicate. One of the features that makes PostgreSQL so versatile is its support for unique constraints. Hasdata() method in the OnModelCreating() method if you generate primary key values that start from 1, when you next attempt to insert values into the database with ef-core it will attempt to re-use those values, the workaround is to call those Jul 10, 2009 · Several months ago I learned from an answer on Stack Overflow how to perform multiple updates at once in MySQL using the following syntax: INSERT INTO table (id, field, field2) VALUES (1, A, X), (2, B, Y), (3, C, Z) ON DUPLICATE KEY UPDATE field=VALUES(Col1), field2=VALUES(Col2); I've now switched over to PostgreSQL and apparently this is not Jan 6, 2024 · Solution 1: Use ON CONFLICT Clause. Details: PostgreSQL SELECT primary key as "serial" or "bigserial" Jan 4, 2021 · ERROR: duplicate key value violates unique constraint "message_metering_payload_pkey" Detail: Key (id)=(120) already exists. Why the database still use the id which is already taken? postgresql. getMessage()); } With this code you are printing the exception. conname as constraint_name, pg_catalog. println("ERROR: Fetch statement failed: " +. Mar 7, 2020 · Fwd: duplicate key value violates unique constraint at 2020-03-07 19:35:03 from Ashkar Dev Re: duplicate key value violates unique constraint at 2020-03-07 20:28:05 from Adrian Klaver Re: duplicate key value violates unique constraint at 2020-03-07 21:13:26 from Ron Browse pgsql-admin by date Sep 17, 2019 · I get the error: 'duplicate key value violates unique constraint' even when checking if the primary key is already in the table in which I want to insert. Cannot insert duplicate key in object 'dbo. There is no need to generate anything. In the database it's look like: I mean that user with another id can't add videos with id's 17 and 18, or any other id of video, which has already been added by another user. And: When a UNIQUE or PRIMARY KEY constraint is not deferrable, PostgreSQL checks for uniqueness immediately whenever a row is inserted or modified. Aug 5, 2021 · jaineelrc141199(at)gmail(dot)com, PostgreSQL mailing lists <pgsql-bugs(at)lists(dot)postgresql(dot)org> Subject: Re: BUG #17135: duplicate key value violates unique constraint May 18, 2018 · public interface ChildRepository extends JpaRepository<Child, String> {. This is one of the reasons why identity columns are preferred over using a sequence and a default value. conditional) UNIQUE constraint - however, you can create a partial unique index. But when I try the insert with deviceserial (unique). tbl_test(testkey integer primary key) Jun 21, 2019 · I have a problem where I get duplicate key value violates unique constraint "my_obj_pk". lang. rm temp. Here is a simplified version: Jan 22, 2021 · PG::UniqueViolation: ERROR: duplicate key value violates unique constraint "table_pkey" A few possible solutions: After importing, change the database id sequence to something bigger than the largest id you imported. First I had to do: VACUUM FULL table_name Then find duplicate rows, delete them, and rebuild the indices. Now your sequence is out of sync with the actual values in the table. Example: Example: psql -Atq -f reset. having count(*) > 1; If this is the case, then I would suggest fixing the staging table. May 29, 2016 · When you create a bigserial column in Postgresql, you are actually creating a sequence. Specifically when you call the Entity<>. Jan 14, 2022 · Duplicate key value violates unique constraint, but it shouldn't [Spring Boot, PostgreSQL] Hot Network Questions Examples of distributions with easily solvable quantile functions but hard to solve CDFs PostgreSQL doesn't define a partial (i. The `MeteoRepositiry just extends `` JPARepository: @Repository. Th Feb 3, 2016 · 1. With PostgreSQL, the ON CONFLICT clause allows you to define an alternative action when a duplicate key violation is encountered, such as skipping the insertion or updating the existing row. You could use either of these two methods to import data: COPY FROM (to a temporary table). Logical Replication. You can try a query like the following to determine which table has that unique constraint defined: SELECT n. In your case, this likely means that the primary key sequence in the table you're working with has become out of sync. エラーとしては以下のようなもの。. Constraints can refer to multiple columns, or complex expressions (consider CREATE UNIQUE INDEX i ON t (LOWER(id)). Id anywhere so it's Guid. From what I read is something about Postgres Dec 27, 2011 · Postgres 15. PSQLException: ERROR: duplicate key value violates unique constraint "uk_4ai4388fdjwvno9jj7u9x1h9x". "duplicate key value violates unique constraint". conrelid::regclass as table_name, co. I've got the synchronize option set to true on TypeORM config, but when I run the application I receive the following error: QueryFailedError: duplicate key value violates unique constraint "pg_type_typname_nsp_index" Jun 22, 2021 · ERROR: duplicate key value violates unique constraint "transaction_item_pkey". py dbshell to the shell was not working May 24, 2019 · 9. It gives me error: ERROR:duplicate key value violates unique constraint "device_usage_deviceserial_key"" DETAIL: Key (deviceserial)=(636363636890) already exists. id with @Generated . The original program written 3-4years ago takes an entire list of everything in de db, gives an id value to new items, and them performs a saveAll() to the repository. util. Use the ON CONFLICT clause in your insert statement to handle any duplication issues gracefully. This works out of the box with NULLS NOT DISTINCT: ALTER TABLE my_table DROP CONSTRAINT IF EXISTS u_constrainte , ADD CONSTRAINT u_constrainte UNIQUE NULLS NOT DISTINCT (id_A, id_B, id_C); See: Create unique constraint with null columns; Postgres 14 or older (original answer) You can do that in pure SQL. Project and issue tracking. Postgres doesn't return "the field" so GORM can't tell you either. The second value is fine. Weed out Primary-Key failures and import only valid data. e. You can add a view (if you must??) to display yes/no instead of true/false: PostgreSQL allows you to create a UNIQUE constraint to a group of columns using the following syntax: c1 data_type, c2 data_type, c3 data_type, UNIQUE (c2, c3) The combination of values in the columns c2 and c3 will be unique across the whole table. Searched on the internet and found that It might be because of indices are corrupted and has to reset the sequence but Cannot find the exact reason and solution for this. May 30, 2021 · I've started a project with TypeORM and I'm having a problem. RE: duplicate key value violates unique constraint at 2020-03-07 19:54:20 from Dave Bolt Re: duplicate key value violates unique constraint at 2020-03-07 19:55:02 from David G. Service management and customer support. PSQLException: ERROR: duplicate key value violates unique constraint "message_metering_payload_pkey" Detail: Key (id)=(120) already exists. Then as mentioned create a unique constraint on the 2 strings. test=# insert into master values (0, 1); ERROR: duplicate key value violates unique constraint "master_con_id_key". sql'. Jun 26, 2013 · 1. ' The name column does not have a unique constraint in either table, and I checked using: SELECT pg_get_indexdef(oid) FROM pg_class WHERE relname = 'tableNameBuffer_key' which gives the following: Jul 17, 2015 · Using MS SQL Server, the following works fine: CREATE TABLE #temptable(mykey int primary key) INSERT INTO #temptable VALUES (1) INSERT INTO #temptable VALUES (2) UPDATE #temptable SET mykey=mykey+1. su pl kx yb oj fk lp ey ch ui