Development

OPFS-sahpool VFS Initialization Failure Propagates Invalid Utility Object Issue Overview: Undefined Function Error During OPFS-sASHPoolUtil Interaction A critical error manifests when attempting to use the OpfsSAHPoolUtil.getFileNames method in SQLite/WASM with the OPFS-sahpool VFS, resulting in the runtime exception "sahPoolUtil.getFileNames is not a function". This occurs because the sahPoolUtil object reference becomes an error object instead…

CLI Command Failures and Console Input Handling in SQLite 3.44.1 Issue Overview: .output/.once Command Failures and Multi-Line Input Parsing Errors The SQLite 3.44.1 release introduced critical regressions in the command-line interface (CLI) tool, primarily affecting two areas: Redirection of Query Output via .output and .once Commands Users reported that after upgrading to SQLite 3.44.1, the…

Understanding SQLite Amalgamation Builds and Custom Configuration SQLite amalgamation is a process where the entire SQLite library is combined into a single C source file (sqlite3.c) and a single header file (sqlite3.h). This approach simplifies the integration of SQLite into projects, as it reduces the complexity of managing multiple source files. However, the amalgamation process…

Issue Overview: .selftest Command Not Visible in .help Output The .selftest command, which is documented on the official SQLite website under the CLI documentation, is not visible in the default .help output within the SQLite command-line interface (CLI). This issue has been reported by users running SQLite version 3.45.2, where the command is absent even…

Understanding the Missing json_extract Function in SQLite on Android The absence of the json_extract() function in SQLite on Android while using React Native with WatermelonDB is a platform-specific discrepancy rooted in how SQLite is compiled and integrated across operating systems. This issue arises when queries relying on SQLite’s JSON1 extension work on iOS but fail…

Issue Overview: SQL Logic Error in Trigger on Linux Mint The core issue revolves around a SQL logic error that occurs when attempting to insert a new record into an SQLite database using a Freepascal Lazarus application with ZeosLib components. The error manifests exclusively on Linux Mint, while the same operation succeeds on other Linux…

Issue Overview: VACUUM INTO Fails on Databases with Virtual Columns and Check Constraints The core issue revolves around the failure of the VACUUM INTO command in SQLite when executed on a database containing tables with virtual columns and check constraints. The error message indicates a mismatch between the number of columns in the table and…

OPFS-sahpool VFS File Lock Retention After Worker Termination in Multi-Tab Contexts Issue Overview: Persistent File Handle Locks Despite Worker Termination When using SQLite/WASM with the OPFS-sahpool VFS (Storage Access Handle Pool Virtual File System) in multi-tab browser environments, developers may encounter persistent file locking issues even after terminating the Web Worker responsible for managing database…

Understanding SQLite WAL Mode Constraints on Network Filesystems Issue Overview: Shared Memory Requirements and Network Filesystem Limitations SQLite’s Write-Ahead Logging (WAL) mode introduces performance benefits over traditional rollback journaling, including reduced disk I/O and improved concurrency. However, its design imposes specific constraints tied to shared memory and file locking. The core issue in this discussion…

Understanding the EntryPointNotFoundException in SQLite.Interop.dll The EntryPointNotFoundException is a common issue encountered when working with native libraries in .NET applications, particularly when using P/Invoke to call functions from unmanaged code. In this case, the exception is thrown because the .NET runtime cannot find the specified entry point in the SQLite.Interop.dll. This DLL is a native…