Results of 1 - 10 of about 18 for projection (0.004 sec.)
- Debugging – DuckDB 12937
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...the filename of the breaking test to the test suite as a command line parameter (e.g., build/debug/test/unittest test/sql/projection/test_simple_projection.test ). For more options on running a subset of the tests see the Triggering which tests to run sec...sqllogictests, this is the relative path to the test file. To run only a single test: build/debug/test/unittest test /sql/projection/test_simple_projection.test All tests in a given directory can be executed by providing the directory as a parameter with...square brackets. To run all tests in the “projection” directory: build/debug/test/unittest "[projection]" All tests, including the slow tests, can be run by running the tests... - https://man.mtool.work/duckdb/1.3/dev/sqllogictest/debugging.html
- sqllogictest Introduction – DuckDB 12353
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...a statement ok indicator, or a statement error indicator. An example of a test file is shown below: # name : test / sql / projection / test_simple_projection.test # group [ projection ] # enable query verification statement ok PRAGMA enable_verification #...n the unittest group. For example, if we wanted to execute only the above test, we would run the command unittest test/sql/projection/test_simple_projection.test . If we wanted to run all tests in a specific directory, we would run the command unittest "[p...but we run tests using a vector size of 2 in our CI. 関連キーワード tests statement query verification directory extension projection statements group require vector expected example because unittest sqllogictests also temporary size sqllogictest testing l... - https://man.mtool.work/duckdb/1.3/dev/sqllogictest/intro.html
- Table Functions – DuckDB 11204
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..._function ( duckdb_table_function table_function , duckdb_table_function_t function ); void duckdb_table_function_supports_projection_pushdown ( duckdb_table_function table_function , bool pushdown ); duckdb_state duckdb_register_table_function ( duckdb_co...nction_t function ); Parameters table_function : The table function function : The function duckdb_table_function_supports_projection_pushdown Sets whether or not the given table function supports projection pushdown. If this is set to true, the system wil...set to false (the default), the system will expect all columns to be projected. Syntax void duckdb_table_function_supports_projection_pushdown ( duckdb_table_function table_function , bool pushdown ); Parameters table_function : The table function pushdown... - https://man.mtool.work/duckdb/1.3/clients/c/table_functions.html
- Directly Reading Files – DuckDB 9488
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...f this data due (e.g., because HTTPFS can't always return a valid timestamp), the cell is set to NULL instead. Support for Projection Pushdown The table functions also utilize projection pushdown to avoid computing properties unnecessarily. So you could e....B Home Code of Conduct Trademark Use Blog In this article read_text read_blob Schema Handling Missing Metadata Support for Projection Pushdown... - https://man.mtool.work/duckdb/1.3/guides/file_formats/read_file.html
- Known Python Issues – DuckDB 8476
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...──────────────────────────────────────────────────────────────────────┤ │ physical_plan │ ┌───────────────────────────┐\n│ PROJECTION │\n│ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ │\n│ x … │ └───────────────┴───────────────────────────────────────────────────────────────────...plain() function: In [ 2 ]: print ( duckdb . sql ( "SELECT 42 AS x" ). explain ()) Out[2]: ┌───────────────────────────┐ │ PROJECTION │ │ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ │ │ x │ └─────────────┬─────────────┘ ┌─────────────┴─────────────┐ │ DUMMY_SCAN │ └────────────... - https://man.mtool.work/duckdb/1.3/clients/python/known_issues.html
- File Formats – DuckDB 8201
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...format and contain basic statistics such as zonemaps . Thanks to these features, DuckDB can leverage optimizations such as projection and filter pushdown on Parquet files. Therefore, workloads that combine projection, filtering, and aggregation tend to per... - https://man.mtool.work/duckdb/1.3/guides/performance/file_formats.html
- Reading and Writing Parquet Files – DuckDB 8047
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...ides support for both reading and writing Parquet files in an efficient manner, as well as support for pushing filters and projections into the Parquet file scans. Parquet data sets differ based on the number of files, the size of individual files, the com...─────────┴────────────┘ NOTE : This parameter cannot be combined with union_by_name=true . Partial Reading DuckDB supports projection pushdown into the Parquet file itself. That is to say, when querying a Parquet file, only the columns required for the que...using the built-in zonemaps. Note that this will depend on whether or not your Parquet file contains zonemaps. Filter and projection pushdown provide significant performance benefits. See our blog post “Querying Parquet with Precision Using DuckDB” for mo... - https://man.mtool.work/duckdb/1.3/data/parquet/overview.html
- Relational API – DuckDB 7909
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...'minutes')::interval as created_timestamp from range(1, 10) """ ) rel . explain () Result ┌───────────────────────────┐ │ PROJECTION │ │ ──────────────────── │ │ id │ │ description │ │ value │ │ created_timestamp │ │ │ │ ~9 Rows │ └─────────────┬─────────...passed function on the relation order Reorder the relation object by order_expr project Project the relation object by the projection in project_expr select Project the relation object by the projection in project_expr sort Reorder the relation object by t...lation , * args , groups : str = '' ) -> duckdb . duckdb . DuckDBPyRelation Description Project the relation object by the projection in project_expr Aliases : select Parameters groups : str, default: '' Comma-separated list of columns to include in the gr... - https://man.mtool.work/duckdb/1.3/clients/python/relational_api.html
- Vector Similarity Search Extension – DuckDB 7909
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...ROM my_vector_table ORDER BY array_distance ( vec , [ 1 , 2 , 3 ]:: FLOAT [ 3 ]) LIMIT 3 ; ┌───────────────────────────┐ │ PROJECTION │ │ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ │ │ #0 │ └─────────────┬─────────────┘ ┌─────────────┴─────────────┐ │ PROJECTION │ │ ─ ─ ─ ─ ─... - https://man.mtool.work/duckdb/1.3/core_extensions/vss.html
- Profiling – DuckDB 7909
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...WHERE name LIKE 'Ma%';" , "children" : [ { "operator_timing" : 0.000001 , "operator_cardinality" : 2 , "operator_type" : "PROJECTION" , "extra_info" : { "Projections" : "name" , "Estimated Cardinality" : "1" }, "children" : [ { "extra_info" : { "Join Type...: 0.000001 , "operator_rows_scanned" : 0 , "cumulative_rows_scanned" : 6 , "operator_cardinality" : 2 , "operator_type" : "PROJECTION" , "cumulative_cardinality" : 11 , "extra_info" : { "Projections" : "name" , "Estimated Cardinality" : "1" }, "result_set_... - https://man.mtool.work/duckdb/1.3/dev/profiling.html
DuckDB 1.3 Documentation / man.mtool.work