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Values 13411
The value class represents a single value of any type. API Reference Overview void duckdb_destroy_value ( duckdb_value * value ); duckdb_value duckdb_create_varchar ( const char * text ); duckdb_value duckdb_create_varchar_length ( const ch ... ugeint ( duckdb_hugeint input ); duckdb_value duckdb_create_uhugeint ( duckdb_uhugeint input ); duckdb_value duckdb_create_bignum ( duckdb_bignum input ); duckdb_value duckdb_create_decimal ( duckdb_decimal input ); duckdb_value duckdb_create_float ( f ... ; duckdb_hugeint duckdb_get_hugeint ( duckdb_value val ); duckdb_uhugeint duckdb_get_uhugeint ( duckdb_value val ); duckdb_bignum duckdb_get_bignum ( duckdb_value val ); duckdb_decimal duckdb_get_decimal ( duckdb_value val ); float duckdb_get_float ( d ... meters input : The uhugeint value Return Value The value. This must be destroyed with duckdb_destroy_value . duckdb_create_bignum Creates a BIGNUM value from a duckdb_bignum Syntax duckdb_value duckdb_create_bignum ( duckdb_bignum input ); Parameters i ...
https://man.mtool.work/duckdb/2.0/clients/c/value.html
Complete API 9850
This page contains the reference for DuckDB's C API. The reference contains several deprecation notices. These concern methods whose long-term availability is not guaranteed as they may be removed in the future. That said, DuckDB's develope ... ugeint ( duckdb_hugeint input ); duckdb_value duckdb_create_uhugeint ( duckdb_uhugeint input ); duckdb_value duckdb_create_bignum ( duckdb_bignum input ); duckdb_value duckdb_create_decimal ( duckdb_decimal input ); duckdb_value duckdb_create_float ( f ... ; duckdb_hugeint duckdb_get_hugeint ( duckdb_value val ); duckdb_uhugeint duckdb_get_uhugeint ( duckdb_value val ); duckdb_bignum duckdb_get_bignum ( duckdb_value val ); duckdb_decimal duckdb_get_decimal ( duckdb_value val ); float duckdb_get_float ( d ... meters input : The uhugeint value Return Value The value. This must be destroyed with duckdb_destroy_value . duckdb_create_bignum Creates a BIGNUM value from a duckdb_bignum Syntax duckdb_value duckdb_create_bignum ( duckdb_bignum input ); Parameters i ...
https://man.mtool.work/duckdb/2.0/clients/c/api.html
Numeric Types 9037
Fixed-Width Integer Types The types TINYINT , SMALLINT , INTEGER , BIGINT and HUGEINT store whole numbers, that is, numbers without fractional components, of various ranges. Attempts to store values outside of the allowed range will result ... sometimes you need numbers that are even bigger than what is supported by a HUGEINT ! In these situations, you can use the BIGNUM type, which stores positive numbers in a similar fashion as other integer types, but uses three additional bytes to store ... e required size and a sign bit. A number with N decimal digits requires approximately 0.415 * N + 3 bytes when stored in a BIGNUM . Unlike variable-length integer implementations in other systems, there are limits to BIGNUM : the maximal and minimal re ...
https://man.mtool.work/duckdb/2.0/sql/data_types/numeric.html
PHP Client 8675
The DuckDB PHP client is a tertiary client and is maintained by a third-party. Client API for PHP, focused on performance. The DuckDB PHP client uses the official C API internally through FFI , achieving good benchmark results. This library ... CKDB_TYPE_ARRAY ARRAY array DUCKDB_TYPE_MAP MAP array DUCKDB_TYPE_UNION UNION mixed DUCKDB_TYPE_BIT BIT string DUCKDB_TYPE_BIGNUM BIGNUM string DUCKDB_TYPE_SQLNULL NULL null ...
https://man.mtool.work/duckdb/2.0/clients/tertiary_clients/php.html
Data Types 8079
General-Purpose Data Types The table below shows all the built-in general-purpose data types. The alternatives listed in the aliases column can be used to refer to these types as well, however, note that the aliases are not part of the SQL ... NG Signed eight-byte integer BIT BITSTRING String of 1s and 0s BLOB BYTEA , BINARY , VARBINARY Variable-length binary data BIGNUM Variable-length integer BOOLEAN BOOL , LOGICAL Logical Boolean ( true / false ) DATE Calendar date (year, month, day) DECI ...
https://man.mtool.work/duckdb/2.0/sql/data_types/overview.html
CSV Auto Detection 7844
When using read_csv , the system tries to automatically infer how to read the CSV file using the CSV sniffer . This step is necessary because CSV files are not self-describing and come in many different dialects. The auto-detection works ro ... of candidate types is given below, in order of priority: Types NULL BOOLEAN TIME DATE TIMESTAMP TIMESTAMPTZ BIGINT HUGEINT BIGNUM DOUBLE VARCHAR Everything can be cast to VARCHAR , therefore, this type has the lowest priority meaning that all columns a ...
https://man.mtool.work/duckdb/2.0/data/csv/auto_detection.html
CSV Import 7717
Examples The following examples use the flights.csv file. Read a CSV file from disk, auto-infer options: SELECT * FROM 'flights.csv'; Use the read_csv function with custom options: SELECT * FROM read_csv('flights.csv', delim = '|', header = ... = ['BIGINT', 'DATE']); The default value for the auto_type_candidates option is ['NULL', 'BOOLEAN', 'BIGINT', 'HUGEINT', 'BIGNUM', 'DOUBLE', 'TIME', 'DATE', 'TIMESTAMP', 'TIMESTAMPTZ', 'VARCHAR'] . CSV Functions The read_csv automatically attempts to ...
https://man.mtool.work/duckdb/2.0/data/csv/overview.html
Types 7609
DuckDB is a strongly typed database system. As such, every column has a single type specified. This type is constant over the entire column. That is to say, a column that is labeled as an INTEGER column will only contain INTEGER values. Duc ... ION = 28, DUCKDB_TYPE_BIT = 29, DUCKDB_TYPE_TIME_TZ = 30, DUCKDB_TYPE_TIMESTAMP_TZ = 31, DUCKDB_TYPE_ANY = 34, DUCKDB_TYPE_BIGNUM = 35, DUCKDB_TYPE_SQLNULL = 36, DUCKDB_TYPE_STRING_LITERAL = 37, DUCKDB_TYPE_INTEGER_LITERAL = 38, DUCKDB_TYPE_TIME_NS = 3 ...
https://man.mtool.work/duckdb/2.0/clients/c/types.html
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