Issue Overview: Missing Entry Points in Custom ARM64 Builds with SEE Extension The core issue revolves around attempting to utilize SQLite’s proprietary SEE (SQLite Encryption Extension) on Windows ARM64 platforms through a custom-built sqlite.interop.dll. Developers targeting ARM64 architectures, particularly for Windows on ARM devices like the Surface Pro X, encounter an "unable to find entry…
Issue Overview: JSON Validation Inconsistencies in SQLite CLI The core issue revolves around inconsistent behavior when using SQLite’s JSON functions, specifically json_valid(), to validate JSON files. The user reports that json_valid() sometimes returns no value or inconsistent results when validating JSON files, even when the files remain unchanged. Additionally, the json_error_position() function, which is designed…
Understanding Transaction Boundaries in SQLite Update Hooks and Trace Callbacks The core challenge revolves around correlating SQLite’s data modification events (captured via sqlite3_update_hook and sqlite3_trace_v2 callbacks) with transaction context. Developers often need to determine whether database changes occur within explicit transactions (BEGIN…COMMIT/ROLLBACK blocks) or implicit auto-commit transactions, and which specific transaction a particular operation belongs…
Issue Overview: JOIN Behavior with PRAGMA Table-Valued Functions in SQLite The core issue revolves around the unexpected behavior of JOIN operations when used with SQLite’s PRAGMA table-valued functions, specifically pragma_table_info(). The problem manifests when attempting to join pragma_table_info() with other PRAGMA functions like pragma_table_list() and pragma_foreign_key_list(). The query in question is designed to retrieve information…
Understanding Column Mismatch Errors with Generated Columns 1. The Nature of Column Mismatch During Insert Operations The error table t has 1 columns but 2 values were supplied occurs when attempting to insert data into a table after altering its schema in SQLite. This discrepancy arises specifically when a generated column (also known as a…
Issue Overview: Remote Access to SQLite Database Across Mac and iPhone The core issue revolves around enabling remote access to an SQLite database from an iPhone application, where the database is initially created and managed by an Objective-C application on a Mac. The Mac application serves as an employee clock-in/clock-out system, and the goal is…
Issue Overview: Backup Database File Descriptors Accumulate Despite sqlite3_backup_finish() A critical resource management issue occurs when using SQLite’s Online Backup API (sqlite3_backup_init(), sqlite3_backup_step(), sqlite3_backup_finish()) where file descriptors for backup database files remain open indefinitely. This manifests as steadily increasing open file handles to the same backup database file path, observable through OS-level process inspection tools…
Issue Overview: The Need for Built-In URL Parsing Functions in SQLite SQLite is a lightweight, serverless database engine widely used in web applications due to its portability, ease of use, and efficiency. However, one limitation that often arises in web development scenarios is the lack of built-in functions for parsing URLs and their query parameters….
Understanding SQLite SEE Encryption and Cross-Platform Compatibility SQLite Encryption Extension (SEE) is a powerful tool that allows developers to encrypt SQLite database files, ensuring data security. However, when working with encrypted databases across different platforms and programming languages, compatibility issues can arise. The core issue revolves around whether an SQLite database encrypted using SEE in…
Issue Overview: ALTER TABLE DROP COLUMN + VACUUM Fails to Reduce File Size A recurring pattern emerges when developers attempt to reclaim storage space after schema modifications in SQLite. The specific scenario involves executing ALTER TABLE … DROP COLUMN followed by VACUUM, expecting database file size reduction proportional to removed data. However, empirical observations reveal…