+If you use the `Latin1_General_100_BIN2_UTF8` collation you will get an additional performance boost compared to the other collations. The `Latin1_General_100_BIN2_UTF8` collation is compatible with parquet string sorting rules. The SQL pool is able to eliminate some parts of the parquet files that will not contain data needed in the queries (file/column-segment pruning). If you use other collations, all data from the parquet files will be loaded into Synapse SQL and the filtering is happening within the SQL process. The `Latin1_General_100_BIN2_UTF8` collation has additional performance optimization that works only for parquet and CosmosDB. The downside is that you lose fine-grained comparison rules like case insensitivity.
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