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DuckDB 1.3 ドキュメント 全文検索
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- SQLite Extension – DuckDB 11950
- This page is for DuckDB 1.3, which is outdated.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
...DuckDB follows SQLite's type affinity rules with a few extensions. If the declared type contains the string INT then it is translated into the type BIGINT If the declared type of the column contains any of the strings CHAR , CLOB , or TEXT then it is trans...lated into VARCHAR . If the declared type for a column contains the string BLOB or if no type is specified then it is translated into BLOB . If the declared type for a column contains any of the strings REAL , FLOA , DOUB , DEC or NUM then it is trans...lated into DOUBLE . If the declared type is DATE , then it is translated into DATE . If the declared type contains the string TIME , then it is translated into TIMESTAMP . If none of the above ap... - https://man.mtool.work/duckdb/1.3/core_extensions/sqlite.html
- Pivot Internals – DuckDB 10681
- This page is for DuckDB 1.3, which is outdated.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
...a query. In order to automatically detect the columns that should be created as a result of a PIVOT statement, it must be translated into multiple queries. ENUM types are used to find the distinct values that should become columns. Each ENUM is then injec...tten again into a set of aggregations into lists. For example: PIVOT cities ON year USING sum ( population ); is initially translated into: CREATE TEMPORARY TYPE __pivot_enum_0_0 AS ENUM ( SELECT DISTINCT year :: VARCHAR FROM cities ORDER BY year ); PIVOT...cities ON year IN __pivot_enum_0_0 USING sum ( population ); and finally translated into: SELECT country , name , list ( year ), list ( population_sum ) FROM ( SELECT country , name , year , sum ( populatio... - https://man.mtool.work/duckdb/1.3/internals/pivot.html
- Spark API – DuckDB 8530
- This page is for DuckDB 1.3, which is outdated.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
...rk API implements the PySpark API , allowing you to use the familiar Spark API to interact with DuckDB. All statements are translated to DuckDB's internal plans using our relational API and executed using DuckDB's query engine. Warning The DuckDB Spark API...missing duckdb session functions Documentation Client APIs Copy Markdown implements allowing familiar interact statements translated 関連するページ SQL to/from JSON PIVOT Statement SQL on Pandas Core Extensions Import from Pandas Relational API on Pandas... - https://man.mtool.work/duckdb/1.3/clients/python/spark_api.html
- Avro Extension – DuckDB 7501
- 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
...ile. Schema Conversion This extension automatically translates the Avro Schema to the DuckDB schema. All Avro types can be translated, except for recursive type definitions , which DuckDB does not support. The type mapping is very straightforward except fo... - https://man.mtool.work/duckdb/1.3/core_extensions/avro.html
- List Functions – DuckDB 7243
- 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
...l , [ x FOR x , i IN l IF i != 2 ] AS filtered ; l filtered [4, 5, 6] [4, 6] Under the hood, [f(x) FOR x IN y IF g(x)] is translated to list_transform(list_filter(y, x -> f(x)), x -> f(x)) . Range Functions DuckDB offers two range functions, range(start,... - https://man.mtool.work/duckdb/1.3/sql/functions/list.html
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