CSV Extension Ignores .separator Command for Virtual Tables The primary issue revolves around the inability to set a custom column separator when using the SQLite CSV extension to create a virtual table. The CSV extension, as documented in the ext/misc/csv.c file, mentions support for separators other than the default comma (,). However, this functionality is…
SQLite Extension Load Failure After Repeated Iterations The core issue revolves around the failure of loading the mod_spatialite extension in SQLite after a significant number of iterations, specifically around the 537th run. The error message indicates a DLL initialization failure, which suggests that the extension or one of its dependencies is not properly managing resources….
SQLite Heap Overflow and Double Free Vulnerability The core issue revolves around a heap overflow caused by a double free vulnerability in the SQLite library, specifically within the sqlite3_free() function. This vulnerability, referenced under CVE-2021-28491, occurs when memory is freed more than once, leading to undefined behavior, memory corruption, and potential exploitation by malicious actors….
Exporting Multiple SQLite Tables to a Single Excel Tab: The Core Challenge The task of exporting multiple SQLite tables into a single Excel file, specifically onto one tab, presents a unique set of challenges. Unlike exporting each table to its own tab, which is relatively straightforward, combining multiple tables into a single tab requires careful…
Python Boolean True Converted to Integer 1 in SQLite TEXT Column When working with SQLite databases in Python, a common issue arises when inserting Python boolean values (True or False) into a column with TEXT affinity. SQLite, by design, does not have a native boolean data type. Instead, it uses integers to represent boolean values,…
SQLite CSV Import Fails Due to Mismatched Column Counts When attempting to import a CSV file into an SQLite table that contains generated columns, users often encounter an error stating that the table has fewer columns than the values supplied in the CSV file. This issue arises because SQLite’s .import command does not account for…
Atomic Initialization Challenges in SQLite Database Files When working with SQLite as an application file format, one of the most critical tasks is ensuring that the database file is properly initialized. This process becomes particularly complex when dealing with scenarios where the file may exist in various states, such as being empty, partially initialized, or…
Window Function COUNT() Misinterpretation Due to Default Frame Specification The core issue revolves around the unexpected behavior of the COUNT() window function in SQLite when used with a default frame specification. The user expected the COUNT() function to operate over the entire partition, returning the total number of rows in the result set for each…
SQLite RETURNING Clause Syntax Error in Older Versions The SQLite database engine is renowned for its lightweight, serverless architecture and robust feature set. However, as with any software, certain features are introduced in specific versions, and attempting to use these features in older versions can lead to syntax errors. One such feature is the RETURNING…
Missing Exports in 32-bit SQLite3 DLLs The core issue revolves around the absence of specific exports in the 32-bit version of the SQLite3 DLL, particularly in version 3.35.3. These missing exports include critical functions such as sqlite3_column_database_name, sqlite3_column_database_name16, sqlite3_column_origin_name, sqlite3_column_origin_name16, sqlite3_column_table_name, sqlite3_column_table_name16, sqlite3_data_directory, sqlite3_deserialize, sqlite3_fts3_may_be_corrupt, sqlite3_fts5_may_be_corrupt, sqlite3_serialize, sqlite3_temp_directory, and sqlite3_version. These functions are essential for…