How to diagnose and fix the 42P21 collation_mismatch error code in Postgres.

The 42P21 error code in PostgreSQL indicates a collation_mismatch. This error occurs when there is an inconsistency in collation (i.e., the set of rules for comparing characters in a character set) between different text expressions that are being compared or combined. Collation issues can arise when you are joining tables, comparing strings, or using string …

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How to diagnose and fix the 57P05 idle_session_timeout error code in Postgres. 

The 57P05 idle_session_timeout error code in PostgreSQL indicates that a session has been terminated because it was idle for longer than the idle_session_timeout setting allows. This setting is used to specify the maximum amount of time that a session can be idle before being automatically terminated by the server. Here are several examples of how …

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How to diagnose and fix the 44000 with_check_option_violation error code in Postgres.

The 44000 with_check_option_violation error code in PostgreSQL occurs when an insert or update operation on a view violates the WITH CHECK OPTION constraint. This option ensures that all data modifications through the view conform to the view’s defining query. Here are several examples of how this error might occur and how to resolve it: To …

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How to diagnose and fix the 42P05 duplicate_prepared_statement error code in Postgres.

The 42P05 duplicate_prepared_statement error code in PostgreSQL occurs when you attempt to create a prepared statement with a name that already exists in the current session. This can happen if you inadvertently create the same prepared statement multiple times without deallocating the previous one first. Here are several examples of how this error might occur …

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