I want to use constraint so i can use upsert. Because i don't want duplicate entry on customer_identifier_value.
on conflict (customer_identifier_value) do nothing
[42P10] ERROR: there is no unique or exclusion constraint matching the ON CONFLICT specification
When i create the constraint
alter table subscriber_historization
add constraint customer_identifier_value_unique unique (customer_identifier_value);
[0A000] ERROR: insufficient columns in UNIQUE constraint definition
Detail: UNIQUE constraint on table "subscriber_historization" lacks column "processing_date" which is part of the partition key.
Here is the DDL.
-- auto-generated definition
create table subscriber_historization
(
customer_identifier_value text not null,
product_value text,
contract_date_end date,
processing_date date not null,
constraint subscriber_historization_pk
primary key (processing_date, customer_identifier_value)
)
partition by RANGE (processing_date);
If i use
ON CONFLICT ON CONSTRAINT subscriber_historization_pk DO NOTHING
The row will be inserted if process_date is different. Then there will be duplicate entry on customer_identifier_value.
How to use upsert then?
Thanks for your help.
You cannot prevent that with partitioned tables, because all unique indexes must contain the partitioning key.
Your only way out is to use SERIALIZABLE transaction isolation throughout and verify the constraint with a trigger. This will be a performance hit, however.
This is a limitation of partitioning.
I have a foreign key constraint on a table and when I’m inserting data I get the following error:
ERROR: insert or update on table "gl_account_item" violates foreign key constraint "fk_gl_account_id" DETAIL: Key (gl_account_id)=(939) is not present in table "gl_account". SQL state: 23503
…if I query the table I can clearly see that it is:
Here is the CREATE TABLE statement:
I cannot understand why I'm getting a foreign key constraint violation error when the id is clearly there in the primary key table. If I remove the foreign key constraint and insert the data and put the constraint back and run a query with a join on that field everything works and the data is there:
Please help.
I am reinstalling my database on a new laptop and am getting this error:
duplicate key value violates unique constraint "cashflow_cashflow_pkey"
DETAIL: Key (id)=(4852) already exists.
Exception Type: IntegrityError
Exception Value: duplicate key value violates unique constraint "cashflow_cashflow_pkey"
DETAIL: Key (id)=(4852) already exists.
I found this, but cant get the right combination of values to work with my table.
SELECT setval('user_id_seq', (SELECT MAX(id) FROM user));
Is this the right way to correct and how do I adjust for my table settings?
Thank you.
I got this to work. thanks.
SELECT setval('cashflow_cashflow_id_seq', (SELECT MAX(id) FROM cashflow_cashflow)+1);
When trying to ALTER TABLE in Postgres 9.5 to create foreign key constraint: from product_template.product_brand_id to product_brand.id
ALTER TABLE public.product_template
ADD CONSTRAINT product_template_product_brand_id_fkey
FOREIGN KEY (product_brand_id)
REFERENCES public.product_brand (id) MATCH SIMPLE
ON UPDATE NO ACTION
ON DELETE SET NULL;
Returns error
ERROR: insert or update on table "product_template" violates foreign key constraint "product_template_product_brand_id_fkey"
DETAIL: Key (product_brand_id)=(12) is not present in table "product_brand".
STATEMENT: ALTER TABLE "product_template" ADD FOREIGN KEY ("product_brand_id") REFERENCES "product_brand" ON DELETE set null
Im confused why postgres is trying to find product_brand.product_brand_id, when the fkey is from product_template.product_brand_id to product_brand.id
Any ideas?
The error message simply states that there is at least one row in the table product_template that contains the value 12 in the column product_brand_id
But there is no corresponding row in the table product_brand where the column id contains the value 12
Key (product_brand_id)=(12) relates the source column of the foreign key, not the target column.
In simple terms, the value of FOREIGN KEY(product_brand_id) provided in your ALTER statement is not present in the source (product_brand) table.
In postgres I have created a table by name twitter_tweets. In this table I have assigned constraint for tweet_text column by using the command
ALTER TABLE ONLY twitter_tweets
ADD CONSTRAINT twitter_tweets_pkey PRIMARY KEY (tweet_text);
The constraint has applied by getting message i.e., alter table
but while parsing the data it showing runtime exception i.e.,
java.lang.RuntimeException: Failed to execute insert query insert into twitter_tweets (tweet_created_at, tweet_id, tweet_id_str, tweet_text, tweet_source, tweet_truncated, tweet_in_reply_to_status_id, tweet_in_reply_to_status_id_str, tweet_in_reply_to_user_id, tweet_in_reply_to_user_id_str, tweet_in_reply_to_screen_name, tweet_geo,tweet_coordinates, tweet_at_reply, tweet_is_quote_status, tweet_retweet_count, tweet_favorite_count, tweet_favorited, tweet_retweeted, tweet_lang, tweet_possibly_sensitive, tweet_filter_level, tweet_scopes_S)values(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?) at Demo.JdbcClient.executeInsertQuery(JdbcClient.java:62) at Demo.PsqlBolt.execute(PsqlBolt.java:91) at backtype.storm.daemon.executor$fn__5694$tuple_action_fn__5696.invoke(executor.clj:690) at backtype.storm.daemon.executor$mk_task_receiver$fn__5615.invoke(executor.clj:436) at backtype.storm.disruptor$clojure_handler$reify__5189.onEvent(disruptor.clj:58) at backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:132) at backtype.storm.utils.DisruptorQueue.consumeBatchWhenAvailable(DisruptorQueue.java:106) at backtype.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:80) at backtype.storm.daemon.executor$fn__5694$fn__5707$fn__5758.invoke(executor.clj:819) at backtype.storm.util$async_loop$fn__545.invoke(util.clj:479) at clojure.lang.AFn.run(AFn.java:22) at java.lang.Thread.run(Thread.java:745) Caused by: org.postgresql.util.PSQLException: ERROR: duplicate key value violates unique constraint "twitter_tweets_pkey" Detail: Key (tweet_text)=() already exists. at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2198) at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1927) at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:405) at org.postgresql.jdbc2.AbstractJdbc2Statement.executeBatch(AbstractJdbc2Statement.java:2892) at com.zaxxer.hikari.proxy.StatementProxy.executeBatch(StatementProxy.java:116) at com.zaxxer.hikari.proxy.PreparedStatementJavassistProxy.executeBatch(PreparedStatementJavassistProxy.java) at Demo.JdbcClient.executeInsertQuery(JdbcClient.java:50) ... 11 more
The below image1 is the table to which i have used constraint
This is my output after keeping constraints
Your problem is described here:
ERROR: duplicate key value violates unique constraint "twitter_tweets_pkey" Detail: Key (tweet_text)=() already exists. at
You set tweet_text to be your PRIMARY KEY (PK), and as PK it cant get duplicated data.
At some point you already insert the data that you are trying to insert now into this column (tweet_text).
Now, why not create an Integer column, AUTO INCREMENTED, something like ID? The way as it now, you are telling me that no one should post a same text that was posted by other user.
Ex. If User A post a tweet with content (tweet_text) : "Hello World", no other user can post the same content.
Unique Constraint Violation
You asked for a primary key. A primary key in Postgres automatically creates an index and a UNIQUE constraint.
Then you inserted rows of data. At least two of those rows had the same value in that primary key field. The duplicate data violated the UNIQUE constraint. Postgres then did its duty in refusing to store the offending data. That refusal is reported back to you, the Java programmer, as an Exception.
At least that is my guess based on this excerpt from the middle of your error text:
Caused by: org.postgresql.util.PSQLException: ERROR: duplicate key value violates unique constraint "twitter_tweets_pkey" Detail: Key (tweet_text)=() already exists.