2023 Performance Improvements¶

The following performance improvements were introduced in 2023.

Released	Description	Impact
August 2023	Ability to call the GET_QUERY_OPERATOR_STATS function to obtain query profile statistics. (General Availability)	Helps to programmatically debug queries and gain insights into query performance.
August 2023	Improved execution times for joins on wide build-side rows.	Reduces execution time and improves memory management for queries matching wide rows on the build side of a join (for example, rows that include columns with long strings).
July 2023	Improved selectivity and cardinality estimation.	Uses improved plan selection to reduce execution time for queries with low selectivity.
July 2023	Search Optimization Update: Support for substring search in VARIANT types. (Preview)	Improves the performance of point lookup queries that use substring and regular expression functions against semi-structured data, including ARRAY, OBJECT, and VARIANT types.
July 2023	Improved compile times for simple queries and DML statements.	Reduces compilation times and improves memory management for simple DML statements and single-table queries with simple equality or range predicates.
June 2023	Improved execution times for SELECT statements with LIMIT and ORDER BY clauses.	Reduces execution time of some queries with long-running SELECT statements containing both LIMIT and ORDER BY clauses.
June 2023	Improved execution times against secure views.	Uses predicate pushdown to reduce execution time for queries against secure views.
May 2023	Improved compile times for queries with numerous extraction expressions.	Reduces compilation times for queries with many extraction expressions (such as those used for processing JSON).
May 2023	Improved compile times for queries with numerous subqueries.	Reduces compilation time for queries with 100+ subqueries.
April 2023	Search Optimization Update: Ability to enable Search Optimization for specific columns. (General Availability)	Point lookup queries that act upon a column can be improved without incurring the expense of enabling Search Optimization for the entire table.
April 2023	Search Optimization Update: Support for substring operations. (General Availability)	Improves the performance of point lookup queries that use substring operations such as LIKE and ENDSWITH.
April 2023	Search Optimization Update: Support for VARIANT data. (General Availability)	Improves the performance of point lookup queries that act upon VARIANT data (such as JSON).
April 2023	Search Optimization Update: Support for geospatial functions with GEOGRAPHY objects. (General Availability)	Improves the performance of point lookup queries that use a geospatial function in a predicate.
April 2023	Ability to use the query acceleration service to speed up queries against tables that have Search Optimization enabled. (General Availability)	Additional compute power provided by the query acceleration service can be combined with performance boost provided by search optimization.
March 2023	Ability to use Snowpipe Streaming. (Preview)	Enables low-latency streaming data pipelines to support writing data rows directly into Snowflake.
February 2023	Ability to use the query acceleration service. (General Availability)	Improves overall warehouse performance by reducing the impact of outlier queries.
February 2023	Ability to call the GET_QUERY_OPERATOR_STATS function to obtain programmatic Query Profile statistics. (Preview)	Helps debug queries and gain insights into query performance.
February 2023	Ability to use memory-optimized warehouses.	Memory-intensive queries can be run on Snowpark-optimized warehouses that provide 16x more memory per node and 10x the local cache compared with standard warehouses.