Results of 1 - 10 of about 14 for collation (0.003 sec.)
- Collations 14914
- Collations provide rules for how text should be sorted or compared in the execution engine. Collations are useful for localization, as the rules for how text should be ordered are different for different languages or for different countries
...etter y comes between x and z . However, in Lithuanian the letter y comes between the i and j . For that reason, different collations are supported. The user must choose which collation they want to use when performing sorting and comparison operations. B...y default, the BINARY collation is used. That means that strings are ordered and compared based only on their binary contents. This makes sense for standa...owever, by far the fastest method of performing ordering and comparisons. Hence it is recommended to stick with the BINARY collation unless required otherwise. The BINARY collation is also available under the aliases C and POSIX . Warning Collation suppor... - https://man.mtool.work/duckdb/2.0/sql/expressions/collations.html
- ORDER BY Clause 8997
- ORDER BY is an output modifier. Logically it is applied near the very end of the query (just prior to LIMIT or OFFSET , if present). The ORDER BY clause sorts the rows on the sorting criteria in either ascending or descending order. In addi
...ault_order option to change the direction of the default sorting order to either DESC or ASC : SET default_order = 'DESC'; Collations Text is sorted using the binary comparison collation by default, which means values are sorted on their binary UTF-8 valu....g., for English language data), the sorting order can be incorrect for other languages. For this purpose, DuckDB provides collations. For more information on collations, see the Collation page . Examples All examples use this example table: CREATE OR REP...then by zip code, both using the default orderings: SELECT * FROM addresses ORDER BY city, zip; Order by city using German collation rules: SELECT * FROM addresses ORDER BY city COLLATE DE; ORDER BY ALL Examples Order from left to right (by address, then... - https://man.mtool.work/duckdb/2.0/sql/query_syntax/orderby.html
- SET and RESET Statements 8927
- The SET statement modifies the provided DuckDB configuration option at the specified scope. Examples Update the memory_limit configuration value: SET memory_limit = '10GB'; Configure the system to use 1 thread: SET threads = 1; Or use the T
...n option to default value: RESET threads; Retrieve configuration value: SELECT current_setting('threads'); Set the default collation for the session: SET SESSION default_collation = 'nocase'; Set a Global Variable Set the default sort order globally: SET... - https://man.mtool.work/duckdb/2.0/sql/statements/set.html
- Comparisons 8699
- Comparison Operators The table below shows the standard comparison operators. Whenever either of the input arguments is NULL , the output of the comparison is NULL . Operator Description Example Result < less than 2 < 3 true > greater than
...NOT NULL false if expression is NULL , true otherwise expression NOTNULL alias for IS NOT NULL (non-standard) An explicit collation on any input to BETWEEN applies to the entire BETWEEN expression. This can differ from writing the comparisons separately,...where the explicit collation applies only to the comparison that contains it: SELECT 'B' NOT BETWEEN ('A' COLLATE NOCASE) AND 'a' AS between_result, 'B... - https://man.mtool.work/duckdb/2.0/sql/expressions/comparison_operators.html
- ICU Extension 8454
- The icu extension provides collation, time zone, and calendar support. New In DuckDB 2.0, the dependency on the external ICU library was removed. The icu extension now implements collations, time zones, and calendars natively, with time zon
...oad it manually, run: INSTALL AND LOAD icu; Features The icu extension introduces the following features: Region-dependent collations Time zones , used for timestamp data types and timestamp functions... - https://man.mtool.work/duckdb/2.0/core_extensions/icu.html
- Information Schema 8454
- The views in the information_schema are SQL-standard views that describe the catalog entries of the database. These views can be filtered to obtain information about a specific column or table. DuckDB's implementation is based on PostgreSQL
...ng form, same as the database encoding. VARCHAR 'UTF8' default_collate_catalog Name of the database containing the default collation (always the current database). VARCHAR 'my_db' default_collate_schema Name of the schema containing the default collation....VARCHAR 'pg_catalog' default_collate_name Name of the default collation. VARCHAR 'ucs_basic' columns : Columns The view that describes the catalog information for columns is information_schema.c... - https://man.mtool.work/duckdb/2.0/sql/meta/information_schema.html
- Python Client API 8104
- Connection class duckdb. Appender Bases: object append_row ( self , * args ) → None Buffer one row, one value per column, each converted as an executemany parameter would be append_rows ( self , rows : object ) → None Buffer each row of an
...pe_str : str ) → _duckdb._sqltypes.DuckDBPyType Create a type object by parsing the ‘type_str' string string_type ( self , collation : str = '' ) → _duckdb._sqltypes.DuckDBPyType Create a string type with an optional collation struct_type ( self , fields...spliced in as SQL and so never taken from untrusted input. type is the earlier API's name for the same argument. collate ( collation : str ) → Expression Compare and sort by a collation, such as nocase ; nocase.noaccent combines two. concat ( * others : o...None = None ) → _duckdb._sqltypes.DuckDBPyType Create a type object by parsing the ‘type_str' string duckdb. string_type ( collation : str = '' , * , connection : _duckdb.DuckDBPyConnection | None = None ) → _duckdb._sqltypes.DuckDBPyType Create a string... - https://man.mtool.work/duckdb/2.0/clients/python/reference/
- Expression API 8034
- The Expression class represents an instance of an expression . Why Would I Use the Expression API? Use expressions to build filters and computed columns in Python. They are useful when column names or conditions depend on your code. import
...ng case .is_null() Checks whether the expression is NULL .is_not_null() Checks whether the expression is not NULL .collate(collation: str) Compares and sorts by a collation , such as nocase .concat(*values) Concatenates text values [key] Takes a field of... - https://man.mtool.work/duckdb/2.0/clients/python/expression.html
- Troubleshoot 8034
- Overview This page collects common issues encountered when using the DuckDB Rust client, together with their workarounds. If you run into a problem that is not covered here, search the client's issue tracker on GitHub. Linking against a Sys
...extension . In DuckDB 2.0, the icu extension no longer depends on the ICU library and implements time zones, calendars and collations natively. If some collation or time-zone-aware date/time operations still fail out of the box with your crate version, in... - https://man.mtool.work/duckdb/2.0/clients/rust/troubleshoot.html
- Pragmas 8034
- The PRAGMA statement is a SQL extension adopted by DuckDB from SQLite. PRAGMA statements can be issued in a similar manner to regular SQL statements. PRAGMA commands may alter the internal state of the database engine, and can influence the
...al fallback: a local value overrides a value set with SET GLOBAL , and RESET max_execution_time restores the global value. Collations List all available collations: PRAGMA collations; Set the default collation to one of the available ones: SET default_col... - https://man.mtool.work/duckdb/2.0/configuration/pragmas.html
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