Results of 1 - 10 of about 95 for warning (0.007 sec.)
- Troubleshoot 12362
- Overview This page collects common issues encountered when using the DuckDB JDBC driver, together with their workarounds. If you run into a problem that is not covered here, search the driver's issue tracker on GitHub. Driver Class Not Foun
...'s library or place the library file beside the executable. Both options are described on the Deploy as Native Image page. Warning about a Restricted Method in java.lang.System On JDK 24 and later, loading the driver prints: WARNING: A restricted method...in java.lang.System has been called WARNING: java.lang.System::load has been called by org.duckdb.DuckDBNative ... WARNING: Use --enable-native-access=ALL-UNNAMED to...avoid a warning for callers in this module This is the JDK's native access integrity check and is harmless. Silence it by running the JVM... - https://man.mtool.work/duckdb/2.0/clients/java/troubleshoot.html
- Complete API 11190
- 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
...; Parameters result : The result object. Return Value The number of columns present in the result object. duckdb_row_count Warning Deprecation notice. This method is scheduled for removal in a future release. Returns the number of rows present in the re...ers result : The result object to fetch the error from. Return Value The error type of the result. duckdb_result_get_chunk Warning Deprecation notice. This method is scheduled for removal in a future release. Fetches a data chunk from the duckdb_result....from. Return Value The resulting data chunk. Returns NULL if the chunk index is out of bounds. duckdb_result_is_streaming Warning Deprecation notice. This method is scheduled for removal in a future release. Checks if the type of the internal result is... - https://man.mtool.work/duckdb/2.0/clients/c/api.html
- Logging 10519
- DuckDB implements a logging mechanism that provides users with detailed information about events such as query execution, performance metrics and system events. Warning Logs may contain sensitive information, including secrets and credentia
...ifferent logging levels that control the verbosity of the logs: FATAL : Only logs fatal errors ERROR : Logs error messages WARNING : Logs warnings and errors INFO : Logs general information, warnings and errors (default) DEBUG : Logs detailed debugging...ation TRACE : Logs very detailed tracing information The log level can be set using: CALL enable_logging(level = 'debug'); Warnings DuckDB emits warnings, for example when you use deprecated syntax or a deprecated setting, through the logging system at...the WARNING level. In the CLI, warnings are printed by default. To capture them from any client, or to inspect them after the fact, en... - https://man.mtool.work/duckdb/2.0/operations_manual/logging/overview.html
- R Client 9861
- Installation To use the DuckDB R client, visit the R installation page . The latest stable version of the DuckDB R client is 2.0.0. Installation duckdb : R Client The DuckDB R client can be installed using the following command: install.pac
...repared statement res <- dbGetQuery(con, "SELECT item FROM items WHERE value > ?", list(400)) print(res) # item # 1 laptop Warning Do not use prepared statements to insert large amounts of data into DuckDB. See below for better options. Efficient Transf...raries. Therefore, the total memory used by the R process may be higher than the configured memory_limit . Troubleshooting Warning When Installing on macOS On macOS, installing DuckDB may result in a warning unable to load shared object '.../R_X11.so' :...Warning message: In doTryCatch(return(expr), name, parentenv, handler) : unable to load shared object '/Library/Frameworks/R.frame... - https://man.mtool.work/duckdb/2.0/clients/r.html
- Enum Data Type 9189
- Name Description ENUM Dictionary representing all possible string values of a column The enum type represents a dictionary data structure with all possible unique values of a column. For example, a column storing the days of the week can be
...person WHERE current_mood = 'sad'; -- Equivalent to `WHERE current_mood::VARCHAR = 'sad'` name current_mood Pagliacci sad Warning This means that comparing against a random (non-equivalent) string always results in false (and does not error): SELECT *...false! comp true SELECT unnest(['medium'::priority, 'high'::priority, 'low'::priority]) AS m ORDER BY m; m low medium high Warning If you compare an enum to a non-enum (e.g., a VARCHAR or a different enum type), the enum will first be cast to a string (...ABLE tasks (name TEXT, priority_level priority); INSERT INTO tasks VALUES ('a', 'low'), ('b', 'medium'), ('c', 'high'); -- WARNING! -- Equivalent to `WHERE priority_level::VARCHAR >= 'medium'` SELECT * FROM tasks WHERE priority_level >= 'medium'; -- Mis... - https://man.mtool.work/duckdb/2.0/sql/data_types/enum.html
- SHOW, SHOW DATABASES, and SHOW SCHEMAS Statements 9018
- SHOW Statement The SHOW statement can also show the schema of a table, view or query, like DESCRIBE . As of DuckDB 2.0, this usage is deprecated and prints a warning; use DESCRIBE instead. New The following feature was introduced in DuckDB
...; SHOW threads; threads 42 If both a table and a setting share the name, SHOW describes the table and prints a deprecation warning (use DESCRIBE for tables). DESCRIBE never resolves a setting. The show_behavior setting configures how SHOW resolves a bar... - https://man.mtool.work/duckdb/2.0/sql/statements/show.html
- Pragmas 8847
- 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
...nt_setting('option_name') . Deprecated Assigning configuration settings with PRAGMA name = value is deprecated and emits a warning. Use SET name = value instead. The warning becomes an error when warnings_as_errors is enabled. Function-style PRAGMA call...00 and is computed relative to the total system memory. Values that cannot be parsed as a valid percentage raise an error. Warning The specified memory limit is only applied to the buffer manager. For most queries, the buffer manager handles the majorit...f you prefer to write the profiling information to a file, you can use the profiling_output setting to specify a filepath. Warning The file contents will be overwritten for every newly issued query. Hence, the file will only contain the profiling inform... - https://man.mtool.work/duckdb/2.0/configuration/pragmas.html
- macOS 8847
- Prerequisites Install Xcode and Homebrew . Then, install the required packages with: brew install git cmake ninja Building DuckDB Clone and build DuckDB as follows. git clone https://github.com/duckdb/duckdb cd duckdb GEN=ninja make Once th
...t that reinstalling Xcode fixed their problem. See related discussions on the DuckDB GitHub issues and on Stack Overflow . Warning Attempting to reinstall your Xcode suite may impact other applications on your system. Proceed with caution. sudo rm -rf /...Library/Developer/CommandLineTools xcode-select --install Debug Build Prints malloc Warning Problem: The debug build on macOS prints a malloc warning, e.g.: duckdb(83082,0x205b30240) malloc: nano zone abandoned due... - https://man.mtool.work/duckdb/2.0/dev/building/macos.html
- Constraints 8689
- In SQL, constraints can be specified for tables. Constraints enforce certain properties over data that is inserted into a table. Constraints can be specified along with the schema of the table as part of the CREATE TABLE statement . In cert
...ts can also be added to a table using the ALTER TABLE statement , but this is not currently supported for all constraints. Warning Constraints have a strong impact on performance: they slow down loading and updates but speed up certain queries. Please c...students (name, email) VALUES ('Student 3', 'student3@uni.com'); Constraint Error: NOT NULL constraint failed: students.id Warning Indexes have certain limitations that might result in constraints being evaluated too eagerly, leading to constraint error...property efficiently, an ART index is automatically created for every foreign key constraint that is defined in the table. Warning Indexes have certain limitations that might result in constraints being evaluated too eagerly, leading to constraint error... - https://man.mtool.work/duckdb/2.0/sql/constraints.html
- Extension Distribution 8518
- Platforms Extension binaries are distributed for several platforms (see below). For platforms where packages for certain extensions are not available, users can build them from source and install the resulting binaries manually . Most offic
...buted over HTTP without the need for HTTPS, which itself is supported through an extension ( httpfs ). Unsigned Extensions Warning Only load unsigned extensions from sources you trust. Avoid loading unsigned extensions over HTTP. Consult the Securing Du...extension. DuckDB stores this compatibility information in a metadata footer appended to the end of the extension binary. Warning Do not run strip on an extension binary. Stripping removes or corrupts the appended metadata footer, after which DuckDB re...allow_unsigned_extensions = true; SET allow_extensions_metadata_mismatch = true; LOAD './some/local/ext.duckdb_extension'; Warning Loading an extension built for a different DuckDB version or platform may crash DuckDB or cause undefined behavior. Creati... - https://man.mtool.work/duckdb/2.0/extensions/extension_distribution.html
DuckDB 2.0 Documentation / man.mtool.work