Results of 1 - 10 of about 12 for optimized (0.006 sec.)
- EXPLAIN: Inspect Query Plans – DuckDB 14450
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...are available: The default setting. Only shows the physical plan. PRAGMA explain_output = 'physical_only' ; Shows only the optimized plan. PRAGMA explain_output = 'optimized_only' ; Shows both the physical and optimized plans. PRAGMA explain_output = 'all...more information, see the ”Profiling” page . 関連キーワード ││ physical plan query students exams output executed explain optimized statement operator settings Shows Documentation Guides Meta Queries Copy Markdown Inspect Query Plans displays enabled 関連... - https://man.mtool.work/duckdb/1.3/guides/meta/explain.html
- Regular Expressions – DuckDB 9498
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...egexp_matches ( E 'hello\nworld' , 'hello.world' , 's' ); -- true Using regexp_matches The regexp_matches operator will be optimized to the LIKE operator when possible. To achieve best performance, the 'c' option (case-sensitive matching) should be passed...if applicable. Note that by default the RE2 library doesn't match the . character to newline. Original Optimized equivalent regexp_matches('hello world', '^hello', 'c') prefix('hello world', 'hello') regexp_matches('hello world', 'worl... - https://man.mtool.work/duckdb/1.3/sql/functions/regular_expressions.html
- Pragmas – DuckDB 8879
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...how only the physical plan. The default configuration of EXPLAIN : SET explain_output = 'physical_only' ; To only show the optimized query plan: SET explain_output = 'optimized_only' ; To show all query plans: SET explain_output = 'all' ; Profiling Enable... - https://man.mtool.work/duckdb/1.3/configuration/pragmas.html
- Concurrency – DuckDB 8578
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...ns pointers, the database catalog, and other items so that subsequent queries on the same connection are faster. DuckDB is optimized for bulk operations, so executing many small transactions is not a primary design goal. Concurrency within a Single Proces... - https://man.mtool.work/duckdb/1.3/connect/concurrency.html
- Overview of DuckDB Internals – DuckDB 8578
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...zer After the logical planner has created the logical query tree, the optimizers are run over that query tree to create an optimized query plan. The following query optimizers are run: Expression Rewriter : Simplifies expressions, performs constant foldin... - https://man.mtool.work/duckdb/1.3/internals/overview.html
- Building Configuration – DuckDB 8260
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...ectly to CMake but not all of them. release This build has been stripped of all the assertions and debug symbols and code, optimized for performance. debug This build runs with all the debug information, including symbols, assertions and #ifdef DEBUG bloc... - https://man.mtool.work/duckdb/1.3/dev/building/build_configuration.html
- sqllogictest Introduction – DuckDB 8260
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...portant part of that is that it verifies that optimizers do not cause bugs in the query. It does this by running both an unoptimized and optimized version of the query, and verifying that the results of these queries are identical. Query verification is v...because it not only discovers bugs in optimizers, but also finds bugs in e.g., join implementations. This is because the unoptimized version will typically run using cross products instead. Because of this, query verification can be very slow to do when w... - https://man.mtool.work/duckdb/1.3/dev/sqllogictest/intro.html
- Tuning Workloads – DuckDB 8260
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...rs. Note that it is not a primary design goal for DuckDB to quickly execute many small queries concurrently. Rather, it is optimized for running larger, less frequent queries. Querying Remote Files DuckDB uses synchronous IO when reading remote files. Thi... - https://man.mtool.work/duckdb/1.3/guides/performance/how_to_tune_workloads.html
- Execution Format – DuckDB 8260
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...st in a PhysicalProjection operator. Data Flow DuckDB uses a vectorized query execution model. All operators in DuckDB are optimized to work on Vectors of a fixed size. This fixed size is commonly referred to in the code as STANDARD_VECTOR_SIZE . The defa... - https://man.mtool.work/duckdb/1.3/internals/vector.html
- Configuration – DuckDB 7658
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...r messages as structured JSON instead of as a raw string BOOLEAN false explain_output Output of EXPLAIN statements ( ALL , OPTIMIZED_ONLY , PHYSICAL_ONLY ) VARCHAR physical_only file_search_path A comma separated list of directories to search for input fi... - https://man.mtool.work/duckdb/1.3/configuration/overview.html
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