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Tag: PostgreSQL
Hibernate – JPA @LOB attribute encoding cannot be used with PostgreSQL text
JPA Mapping
I am using JPA and Hibernate. I have an entity with @Lob attributes
@Column(nullable=false)
@Lob
private String text; I am using PostgreSQL 8.4 and entities are correctly ma
Hibernate – GRAILS and PostgreSQL do not generate tables
So I have some simple domain classes, I make sure not to use any PostgreSQL (or any other vendor) reserved words. Executing grails schema-export will generate a DDL, when targeting the same When th
Ruby-on-rails – SQL query with groups can run on SQLITE, not running on PostgreSQL
The following query is suitable for local but not for production: (production is heroku is running postgreSQL, local I am running sqllite database)
ruby
Tutor.joins(:expertises).wh
Ruby-on-rails – Use the Rails Society Time Zone in PostgreSQL – the field type to use
I store the time zone in the database I obtained through the FB API. The time zone looks like:
-7 Which field should I use in rails/PostgreSQL to store this value? string?
UTC-3.5
-7
A
Performance – The query is very slow when loading on PostgreSQL
We are using PostgreSQL version 9.4 database on Amazon EC2. All of our queries ran very slow on the first attempt, until after it was cached they were very fast, but it was not Mediation because it
PostgreSQL – the best way to make a large number of updates to the index set
The context of this question is PostgreSQL 9.6.5 on AWS RDS.
The question is about a table containing 300 million rows of the following logical data model Best mode design and batch update st
PostgreSQL – PGADMIN Display Type [] But not type
I created an ENUM type in PostgreSQL tribool. I created a table column with tribool type. Now I am writing a function with tribool type parameters. However, pgAdmin is only in the drop-down list Tr
PostgreSQL – String Sorting Sequence (LC_COLLATE and LC_CTYPE)
Obviously, since version 8.4, PostgreSQL allows each database to use a different locale.
So I went to the document to read about the locale (http://www. postgresql .org/docs/8.4/static/locale.html)
PostgreSQL – How to imitate the Postgres foreign key into the partition table
I have a partitioned table (call it A) where a serial primary key is referenced by another table (call it B). I know I can’t actually go from one to the other One creates a foreign key (because I d