Results of 1 - 5 of about 5 for transforms (0.002 sec.)
- Writing to Iceberg 11564
- The DuckDB iceberg extension supports writing to Iceberg tables when an Iceberg catalog is attached. Writing to a table read directly from storage with iceberg_scan is not supported: the catalog is required to commit the new table metadata.
...ata files are rewritten. Partitioning Tables can be partitioned with the PARTITIONED BY clause using the Iceberg partition transforms : Transform Description ⟨column⟩ Identity: partition by the column value directly. year(⟨column⟩) , month(⟨column⟩) , day(...ARTITIONED BY : ALTER TABLE iceberg_catalog.default.events SET PARTITIONED BY (month(event_time)); The bucket and truncate transforms are also available as the iceberg_bucket and iceberg_truncate functions . The write.target-file-size-bytes and write.parqu... - https://man.mtool.work/duckdb/2.0/core_extensions/iceberg/writing_to_iceberg.htm...
- EXPLAIN: Inspect Query Plans 10424
- EXPLAIN SELECT * FROM tbl; The EXPLAIN statement displays the physical plan, i.e., the query plan that will get executed, and is enabled by prepending the query with EXPLAIN . The physical plan is a tree of operators that are executed in a
...specific order to produce the result of the query. To generate an efficient physical plan, the query optimizer transforms the existing physical plan into a better physical plan. To demonstrate, see the below example: CREATE TABLE students (name... - https://man.mtool.work/duckdb/2.0/guides/meta/explain.html
- Overview of DuckDB Internals 9854
- Tip For a detailed explanation of DuckDB internals, see the Design and Implementation of DuckDB Internals ("DiDi") library entry. On this page is a brief description of the internals of the DuckDB engine. Parser The parser converts a query
...t of the database. It will not throw errors if tables do not exist, and will not resolve any types of columns yet. It only transforms a query string into a set of tokens as specified. ParsedExpression The ParsedExpression represents an expression within a... - https://man.mtool.work/duckdb/2.0/internals/overview.html
- Iceberg Functions 7041
- The iceberg extension provides the following functions: Function Description iceberg_scan(source) Reads an Iceberg table from a path. iceberg_metadata(source) Returns the manifest entries of an Iceberg table. iceberg_snapshots(source) Retur
...]); Partition Transform Functions The iceberg_bucket and iceberg_truncate scalar functions implement the Iceberg partition transforms of the same name. They are most often used implicitly through the PARTITIONED BY clause (see Partitioning ), but they can... - https://man.mtool.work/duckdb/2.0/core_extensions/iceberg/iceberg_functions.html
- Spatial Functions 7041
- Function Index Scalar Functions Function Summary DuckDB_PROJ_Compiled_Version Returns a text description of the PROJ library version that this instance of DuckDB was compiled against. DuckDB_Proj_Version Returns a text description of the PR
...tangular polygons from specified zoom level and tile indices. ST_Touches Returns true if the geometries touch ST_Transform Transforms a geometry between two coordinate systems ST_Union Returns the union of two geometries ST_VoronoiDiagram Returns the Voron..._Touches Signature BOOLEAN ST_Touches (geom1 GEOMETRY, geom2 GEOMETRY) Description Returns true if the geometries touch ST_Transform Signatures BOX_2D ST_Transform (box BOX_2D, source_crs VARCHAR, target_crs VARCHAR) BOX_2D ST_Transform (box BOX_2D, source..._crs VARCHAR) GEOMETRY ST_Transform (geom GEOMETRY, source_crs VARCHAR, target_crs VARCHAR, always_xy BOOLEAN) Description Transforms a geometry between two coordinate systems The source and target coordinate systems can be specified using any format that... - https://man.mtool.work/duckdb/2.0/core_extensions/spatial/functions.html
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