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Postgresql insert into table9/5/2023 I don't know if this is possible using "pure" SQL. What is schema-based sharding How to use Citus schema-based sharding for Postgres Benefits of schema-based sharding Choosing a sharding model for multi-tenant applications (schema-based vs. It may also be possible to insert binary data into a bytea column using PL/Python. Solved: The details provided here on the psycopg website provided the basis for a solution I've written in Python. The following INSERT statement selects all of the rows from the CATEGORY table and inserts them into the CATEGORYSTAGE table. How are bytea fields used then?Įdit: This similar question from 2005 remains unanswered. I have searched the various StackExchange sites, the PostgreSQL Archives and the Internet generally, but have not been able to find an answer.Įdit: This discussion from 2008 implies that what I want to do is not possible. Something like: insert into select col1, col2, col3 from Can someone give me an example or tell me what commands to use What I have so far: lconnectstr 'hostaddr192.168.10.21 port5432 dbnamedb1 userpostgres passwordtest' perform public.dblinkconnect ('con1', lconnectstr).I'm not concerned about that at this stage as users would not be inserting bytea data at present. I am aware that only administrators with write permission on the server would be able to insert data in the way I would like to. This can, presumably, be done by one of the PL/ languages, and I may look into doing this with PL/Python in the future.Īs I am still testing and experimenting, I would simply like to insert data from a file (on the server) using "standard" SQL statements. The first thing to do before a database can be of much use is to insert data. In the above syntax where insert into, values are keywords, table name means specified table name that we need to insert data after column name means specified. I'd like to enter data into the bytea field. 190 I'm not sure if its standard SQL: INSERT INTO tblA (SELECT id, time FROM tblB WHERE time > 1000) What I'm looking for is: what if tblA and tblB are in different DB Servers. Inserting Data When a table is created, it contains no data. I have a table containing a primary key integer field and a bytea field.
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