but when I check the stl_load_errors table, it … Option 1: Use Redshift’s late binding views to “detach” the dependent view from the underlying table, thus preventing future dependency errors. The problem with this is that when your table contains millions of records, the power bi desktop refresh becomes unworkable due to the time taken to download the data. Transaction T1 SELECTs all the rows in the table and then INSERTs a row. Note that using psycopg2 I can connect with Redshift using the tunnel. I tried the POWER BI redshift connection as well as the redshift ODBC driver: Redshift DESCRIBE Table Command Alternative. i really need a solution to be able to query subsets of data in redshift. Option 2: Manually locate and drop cascade the dependent views when dependency errors arise. Redshift will act to prevent this isolation violation error, by aborting the transaction and rolling it back. If precision+scale (numeric/decimal) or size (varchar/char) information is missing from the columntype value, it is an impacted column and will need an explicit cast in the late binding view definition. We cannot connect Power BI to redshift spectrum. Redshift temp tables get created in a separate session-specific schema and lasts only for the duration of the session. 3) All spectrum tables (external tables) and views based upon those are not working. Basically, Amazon Redshift won’t allow two commands to run concurrently if there are multiple possible outcomes from that happening. To elaborate more my scenario, I'm creating an ssh tunnel to Redshift. While with sqlalchemy I'm not able to do it. FYI, generally when it comes to troubleshooting Redshift/Postgres, it’s good to understand lock of conflicting modes and which command requires which types of locks (e.g. The table below lists the Redshift Create temp table syntax in a database. Late binding views are views that don’t check underlying tables until the view is queried. Based on the results of the query, identify the impacted late binding views (table_name) and columns (column_name) in those views. As the name suggests, DESCRIBE is used to describe command to describe the structure of a table. we got the same issue. Consider an empty table. Because we have an authentication server in premises. 1) The connection to redshift itself works. many databases such as MySQL, Hive provides DESCRIBE command that allows you to get the structure of a given table. When Redshift executes a join, it has a few strategies for connecting rows from different tables together. For this reason, you can name a temporary table the same as a permanent table and still not generate any errors. Check 'stl_load_errors' system table for details. 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