Results of 1 - 10 of about 23 for apply (0.009 sec.)
- Lambda Functions – DuckDB 14963
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...nctions That Accept Lambda Functions Name Description list_transform(list, lambda(x)) Returns a list that is the result of applying the lambda function to each element of the input list. The return type is defined by the return type of the lambda func...ent. See list_reduce examples or details. list_transform(list, lambda(x)) Description Returns a list that is the result of applying the lambda function to each element of the input list. The return type is defined by the return type of the lambda func..._transform examples . Example list_transform ([ 4 , 5 , 6 ], lambda x : x + 1 ) Result [5, 6, 7] Aliases array_transform , apply , list_apply , array_apply list_filter(list, lambda(x)) Description Constructs a list from those elements of the input lis... - https://man.mtool.work/duckdb/1.3/sql/functions/lambda.html
- Relational API – DuckDB 10473
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...y evaluated . Name Description aggregate Compute the aggregate aggr_expr by the optional groups group_expr on the relation apply Compute the function of a single column or a list of columns by the optional groups on the relation cross Create cross/car...el . aggregate ( 'max(value)' ) Result ┌──────────────┐ │ max("value") │ │ int64 │ ├──────────────┤ │ 9 │ └──────────────┘ apply Signature apply ( self : duckdb . duckdb . DuckDBPyRelation , function_name : str , function_aggr : str , group_expr : str...column or a list of columns by the optional groups on the relation Parameters function_name : str Name of the function to apply over the relation. function_aggr : str The list of columns to apply the function over. group_expr : str, default: '' Optio... - https://man.mtool.work/duckdb/1.3/clients/python/relational_api.html
- Versioning of Extensions – DuckDB 9970
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...ng with v0 have a special meaning: they indicate that the more strict semantics of regular ( >v1.0.0 ) versions do not yet apply. It basically means that an extensions is working towards becoming a stable extension, but is not quite there yet. For exa...pre-release format? The extension is compiled from the source code corresponding to the tag. Semantic Versioning semantics apply. See the Semantic Versioning specification for details. The extension follows a release cycle where new features are teste...sion number in the stable format? Essentially the same as pre-release extensions, but now the more strict SemVer semantics apply: the API of the extension should now be stable and will only change in backwards incompatible ways when the major version... - https://man.mtool.work/duckdb/1.3/extensions/versioning_of_extensions.html
- WHERE Clause – DuckDB 9970
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...Sitemap Live Demo Documentation / SQL / Query Syntax Copy Markdown WHERE Clause The WHERE clause specifies any filters to apply to the data. This allows you to select only a subset of the data in which you are interested. Logically the WHERE clause i...ワード rows table clause match given expression Syntax case mark Documentation Query Copy Markdown Clause specifies filters apply allows subset interested Logically applied immediately after Examples 関連するページ SELECT Statement DELETE Statement LIM... - https://man.mtool.work/duckdb/1.3/sql/query_syntax/where.html
- Tuning Workloads – DuckDB 8981
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...include a filter pushdown for a filter condition that is later applied performs unnecessary IO. Try rewriting the query to apply a pushdown. Bad join orders where the cardinality of an operator explodes to billions of tuples should be avoided at all c...LECT * . Instead, only select columns that are actually used. DuckDB will try to only download the data it actually needs. Apply filters on remote parquet files when possible. DuckDB can use these filters to reduce the amount of data that is scanned.... - https://man.mtool.work/duckdb/1.3/guides/performance/how_to_tune_workloads.html
- List Functions – DuckDB 8730
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...t_prepend(element, list) Prepends element to list . list_reduce(list, lambda) Returns a single value that is the result of applying the lambda function to each element of the input list. See the Lambda Functions page for more details. list_resize(list...ails about the sorting order and the NULL sorting order. list_transform(list, lambda) Returns a list that is the result of applying the lambda function to each element of the input list. See the Lambda Functions page for more details. list_unique(list...liases array_prepend , array_push_front list_reduce(list, lambda) Description Returns a single value that is the result of applying the lambda function to each element of the input list. See the Lambda Functions page for more details. Example list_red... - https://man.mtool.work/duckdb/1.3/sql/functions/list.html
- Spatial Functions – DuckDB 7976
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...geom GEOMETRY , m DOUBLE ) Description Forces the vertices of a geometry to have X, Y and M components The following cases apply: If the input geometry has a Z component but no M component, the Z component will be replaced with the new M value. If the...geom GEOMETRY , z DOUBLE ) Description Forces the vertices of a geometry to have X, Y and Z components The following cases apply: If the input geometry has a M component but no Z component, the M component will be replaced with the new Z value. If the..., z DOUBLE , m DOUBLE ) Description Forces the vertices of a geometry to have X, Y, Z and M components The following cases apply: If the input geometry has a Z component but no M component, the new M value will be added to the vertices of the input ge... - https://man.mtool.work/duckdb/1.3/core_extensions/spatial/functions.html
- Text Types – DuckDB 7976
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...ying a Compression Type You can specify a compression type for a string with the USING COMPRESSION clause. For example, to apply zstd compression, run: CREATE TABLE tbl ( s VARCHAR USING COMPRESSION zstd ); Text Type Values Values of the text type are...eferencing columns whose declared or implied type is the text data type string literals casting expressions to a text type applying a string operator , or invoking a function that returns a text type value Strings with Special Characters To use specia... - https://man.mtool.work/duckdb/1.3/sql/data_types/text.html
- Functions – DuckDB 7976
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...ose' , 'Faroese goose' , 'Hungarian goose' , 'Pomeranian goose' ]) breed ( goose_name ); Using with Literals and Arrays To apply function chaining to literals and following array access operations, you must surround the argument with parentheses, e.g.... - https://man.mtool.work/duckdb/1.3/sql/functions/overview.html
- SQLite Extension – DuckDB 7724
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...ed into DATE . If the declared type contains the string TIME , then it is translated into TIMESTAMP . If none of the above apply, then it is translated into VARCHAR . As DuckDB enforces the corresponding columns to contain only correctly typed values,... - https://man.mtool.work/duckdb/1.3/core_extensions/sqlite.html
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