Search Result: Enums - DuckDB 1.3 全文検索

Search Shortcut cmd + k | ctrl + k

Documentation DuckDB 1.3 ドキュメント全文検索

DuckDB 1.3 ドキュメント全文検索

Results of 1 - 3 of about 3 for Enums (0.003 sec.)

Enum Data Type – DuckDB 11924: This page is for DuckDB 1.3, which is outdated.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 ... le unique values of a column. For example, a column storing the days of the week can be an enum holding all possible days. Enums are particularly interesting for string columns with low cardinality (i.e., fewer distinct values). This is because the co ... m using a SELECT statement that returns a single column of VARCHAR s: CREATE TYPE enum_name AS ENUM ( select_expression ); Enums can also be created on the fly during casting : SELECT 'some_string' :: ENUM ( value_1 , value_2 , ...); Examples Creates ... eate an anonymous enum value on the fly: SELECT 'happy' :: ENUM ( 'sad' , 'ok' , 'happy' ); This statement will fail since enums cannot hold NULL values: CREATE TYPE breed AS ENUM ( 'maltese' , NULL ); This statement will fail since enum values must b ...; https://man.mtool.work/duckdb/1.3/sql/data_types/enum.html

Vectors – DuckDB 8073: This page is for DuckDB 1.3, which is outdated.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 ... alue of 10500 . In order to obtain the correct decimal value, the value should be divided by the appropriate power-of-ten. Enums Enums are stored as unsigned integer values internally. The exact native type depends on the size of the enum dictionary, ... DuckDB Home Code of Conduct Trademark Use Blog In this article Vector Format Primitive Types NULL Values Strings Decimals Enums Structs Lists Arrays Examples Example: Reading an int64 Vector with NULL Values Example: Reading a String Vector Example: ...; https://man.mtool.work/duckdb/1.3/clients/c/vector.html

Types – DuckDB 7868: This page is for DuckDB 1.3, which is outdated.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 ... define types as arbitrary structs ( ROW(i INTEGER, j VARCHAR) ). For that reason, native DuckDB type objects are not mere enums, but a class that can potentially be nested. Types in the C API are modeled using an enum ( duckdb_type ) and a complex cl ... duckdb_value functions do not support structural reading of composite types (lists or structs) or more complex types like enums and decimals. For more information about data chunks, see the documentation on data chunks . API Reference Overview duckdb ... reate_enum_type ( const char ** member_names , idx_t member_count ); Parameters member_names : The array of names that the enum should consist of. member_count : The number of elements that were specified in the array. Return Value The logical type. d ...; https://man.mtool.work/duckdb/1.3/clients/c/types.html

PREV 1 NEXT

DuckDB 1.3 Documentation / man.mtool.work