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Is there an UTF8 collation in PostgreSQL-stack?
I think the Postgres 10 collation equivalent for utf8_general_ci (or more modern utf8_unicode_ci) is called und-x-icu – this is an undefined collation (not defined for any real world language) provided by an ICU library. This collation would sort quite reasonably characters from most languages.
How to use Postgres with the ICU reference library?
Since version 10, Postgres can be configured with ICU, the reference library for Unicode, to use its collations in COLLATE clauses. To that end, ICU collations for most language/countries pairs are automatically created at initdb time (they will be found in pg_catalog.pg_collation), and others can be added later with CREATE COLLATION.
Is the ICU collation of a given name always the same?
ICU does not support separate “collate” and “ctype” settings, so they are always the same. Also, ICU collations are independent of the encoding, so there is always only one ICU collation of a given name in a database. 23.2.2.1.
When to use indeterminate collation in PostgreSQL?
If there are conflicting non-default implicit collations among the input expressions, then the combination is deemed to have indeterminate collation. This is not an error condition unless the particular function being invoked requires knowledge of the collation it should apply.
What happens if you change the encoding in PostgreSQL?
If this encoding has not been changed, then the new databases will be created using this template and hence will have the same encoding SQL_ASCII. Overall this should not be a big problem unless Unicode data is required to be saved in the database. In that case you will receive an error such as :
What happens when the database encoding is not UTF8?
In that case you will receive an error such as : Unicode escape values cannot be used for code point values above 007F when the server encoding is not UTF8. In this blog, we will go through all steps in order to change the encoding of the database to UTF8.
What would be the equivalent in PostgreSQL?
For the following MySQL create database statement, what would be the equivalent in postgresql?: Is that enough or should I be more specific including LOCALE as well? Yes, you can be more specific.