redshift alter table rename takes forever

Redshift alter table rename takes forever how to#
Redshift alter table rename takes forever full#
Redshift alter table rename takes forever code#

Or if you are using DBeaver Universal Database Management tool for developing your SQL solutions on Amazon Redshift Data Warehouse, you can right click on table name then follow menu options 'Generate SQL > DDL' pathĪfter the source table DDL script is fetched, change the table name with a new name by adding _tmp for example. The RazorSQL Redshift alter table tool includes a Rename Column option for.

I get the CREATE TABLE DDL SQL command of the table using the Redshift database client tool.įor example, if you are using SQL Workbench/J SQL programmer can right click on the table and then choose ' Show source' context menu option. The size of the table in MB and the number of table rows (including rows marked as deleted waiting for a vacuum) are also visible in this system view for database tables. Īmazon Redshift database administrators and SQL developers can check the existing sort key and distribution key of a database table by querying the SVV_TABLE_INFO system view. Unrefreshable materialized views can be caused by operations that: Rename or drop a column. (500310) Invalid operation: Too much content of 'dl_th_customer_events_incl_dim' are deleted during executing alter distkey command. REFRESH MATERIALIZED VIEW is unrefreshable.

(Note: all syntax will be reflective of Redshift’s version of PostgreSQL, and all snippets come from their documentation.

Redshift alter table rename takes forever code#

Newly added code will take up to 24 hours to appear in the data warehouse. Views.An error occurred when executing the SQL command:ĪLTER TABLE 'public'.'dl_th_customer_events_incl_dim' ALTER SORTKEY ('event_date') RENAME Below, I’ll give a little description of what each function can do and a quick example of how it helps save time and cleans up your code. Create snapshot tables with dbt snapshot Snapshot Model Types Altering. There is no way to change an existing column in Redshift, since it does not support ALTER COLUMN or ALTER TABLE MODIFY statements. Statements, which might contain sensitive user-generated data.Īll rows in SVV_TRANSACTIONS are visible to all users.įor more information, see Visibility of data in system tables and BEGIN FOR cn IN ( SELECT constraintname FROM userconstraints WHERE constrainttype ‘P’ AND tablename ‘SPECIALITE’ ) LOOP EXECUTE IMMEDIATE ‘ALTER TABLE ‘ cn. Here are the steps to remove NOT NULL constraint in Redshift. Not all of them work (they are the result of running SQL Data Compare) and I want to group them in some transactions and roll back the statements if something goes wrong.

Redshift alter table rename takes forever full#

STL_QUERYTEXT contain the full text of INSERT, UPDATE, and DELETE 22 I have some ALTER TABLE statements that I am running.

Redshift alter table rename takes forever how to#

Visibility to data generated by other users. How to alter an already existing column in aws redshit to make it a sort-key like I have a column username in table users and I want to make it a sortkey is there an sql query for this like: 'alter table users add sortkey (username)' Thanks in advance. To verify that the changes have been successfully completed, you will query the system table pgdatabaseinfo. tl dr: alter table can be run by those, and only those, who can drop table.

Giving a user unrestricted access to system tables gives the user 1 Answer Sorted by: 4 I got a response from AWS Support.