sqlite/ext/misc
drh e893e2e4ee Fix the CSV extension so that it works with single-column CSV files.
FossilOrigin-Name: e336cf00486bdc0ec04ecded2b7c874d73a87e6aba3544e3678bedfb9a4af3b6
2018-06-02 12:05:18 +00:00
..
README.md Updates to the README.md file for the ext/misc directory. No code changes. 2018-01-09 15:28:25 +00:00
amatch.c Do not use strcpy() in the (obsolete) amatch extension. 2017-05-23 19:35:20 +00:00
anycollseq.c Add the anycollseq.c loadable extension in etc/misc 2017-04-16 22:08:31 +00:00
appendvfs.c Fix harmless compiler warnings, mostly unused parameters for UDFs in the CLI. 2018-01-17 13:15:23 +00:00
btreeinfo.c Improved error message output when the btreeinfo.c extension is run in 2018-01-24 13:15:56 +00:00
carray.c Add a destructor argument to sqlite3_bind_pointer() 2017-07-27 03:48:02 +00:00
closure.c Fix a problem in the xBestIndex method of the closure extension causing it to 2018-05-02 08:12:22 +00:00
completion.c Add new interfaces for accessing the list of SQL keywords: 2018-04-25 19:02:48 +00:00
compress.c Improved comments on the sqlar.c and compress.c extensions that describe 2018-01-07 19:52:28 +00:00
csv.c Fix the CSV extension so that it works with single-column CSV files. 2018-06-02 12:05:18 +00:00
dbdump.c Add new interfaces for accessing the list of SQL keywords: 2018-04-25 19:02:48 +00:00
eval.c Fix segfault in 'eval.c' extension when used with 'empty_result_callbacks'. 2018-04-04 12:21:33 +00:00
fileio.c Fix harmless compiler warnings seen with MSVC. 2018-03-23 00:31:53 +00:00
fuzzer.c More harmless compiler warning fixes. 2016-04-12 20:05:06 +00:00
ieee754.c Fix a harmless sanitizer warning in the ieee754 extension. 2015-11-07 00:51:15 +00:00
json1.c Correct output for the fullkey column of json_each() when the total JSON 2018-05-16 12:19:11 +00:00
memvfs.c Enhance the memvfs extension so that it can be read/write. 2018-01-02 16:02:50 +00:00
mmapwarm.c Add extension "mmapwarm.c". Provides function sqlite3_mmap_warm(), used to 2017-09-18 16:28:56 +00:00
nextchar.c Fix typo in comment. No changes to code. 2013-09-29 04:56:43 +00:00
normalize.c Test cases for sqlite3_normalize(). 2018-01-08 20:04:57 +00:00
percentile.c Work in progress on setting a calling convention for all callback functions. 2016-07-28 04:14:37 +00:00
regexp.c More harmless compiler warning fixes. 2016-04-12 20:05:06 +00:00
remember.c Comment changes clarifying details of the pointer-type parameter. No 2017-07-17 12:41:29 +00:00
rot13.c Fix harmless compiler warnings in the rot13 extension. 2017-12-07 16:51:25 +00:00
scrub.c Fix utility compilation issues with MSVC. 2018-03-07 14:42:17 +00:00
series.c Fix the generate_series virtual table so that it correctly returns no 2018-04-03 14:25:51 +00:00
sha1.c Fix issues in the sha1 extension seen with MSVC. 2017-02-02 19:24:05 +00:00
shathree.c Lowercase local variable names in the SHA3 extension in order to avoid 2017-12-20 23:46:29 +00:00
showauth.c Add the "showauth" extension in ext/misc. 2014-09-21 17:51:37 +00:00
spellfix.c Fix a bug in the spellfix extension causing it to compute suboptimal answers. 2018-03-30 16:34:04 +00:00
sqlar.c Improved comments on the sqlar.c and compress.c extensions that describe 2018-01-07 19:52:28 +00:00
stmt.c Change the name of the STMT virtual table to SQLITE_STMT. Also remove the 2017-07-14 15:14:21 +00:00
templatevtab.c Enhance the comments in the templatevtab.c implementation. 2018-04-27 15:17:08 +00:00
totype.c Fix harmless macro redefinition warnings in the totype extension. 2013-10-15 10:43:04 +00:00
unionvtab.c When disconnecting from the 'swarmvtab' extension, close each database prior to invoking the 'openclose' function on it. 2018-01-09 22:23:42 +00:00
vfslog.c Improved header comment with better instructions on the vfslog.c 2013-10-19 16:51:39 +00:00
vfsstat.c Make the extension auto-loading mechanism work with the __stdcall calling convention. Also, fix a couple Tcl command calling conventions missed in the previous check-in. 2016-07-28 22:23:26 +00:00
vtablog.c Add a first draft of the "vtablog" extensions that implements a generic 2017-08-10 03:27:27 +00:00
vtshim.c In the 'vtshim' extension, avoid accessing freed memory when handling errors from xCreate/xConnect. 2017-01-19 18:20:36 +00:00
wholenumber.c Fix the wholenumber virtual table so that it returns higher costs for 2013-05-08 14:20:28 +00:00
zipfile.c Fix minor problems with passing NULL pointers to memcmp() and memcpy() found by -fsanitize=undefined. 2018-03-23 16:31:34 +00:00
zorder.c Add the zorder.c extension implementing zorder() and unzorder() SQL functions. 2018-02-09 20:49:15 +00:00

README.md

Miscellaneous Extensions

This folder contains a collection of smaller loadable extensions. See https://www.sqlite.org/loadext.html for instructions on how to compile and use loadable extensions. Each extension in this folder is implemented in a single file of C code.

Each source file contains a description in its header comment. See the header comments for details about each extension. Additional notes are as follows:

  • carray.c — This module implements the carray table-valued function. It is a good example of how to go about implementing a custom table-valued function.

  • csv.c — A virtual table for reading Comma-Separated-Value (CSV) files.

  • dbdump.c — This is not actually a loadable extension, but rather a library that implements an approximate equivalent to the ".dump" command of the command-line shell.

  • json1.c — Various SQL functions and table-valued functions for processing JSON. This extension is already built into the SQLite amalgamation. See https://sqlite.org/json1.html for additional information.

  • memvfs.c — This file implements a custom VFS that stores an entire database file in a single block of RAM. It serves as a good example of how to implement a simple custom VFS.

  • rot13.c — This file implements the very simple rot13() substitution function. This file makes a good template for implementing new custom SQL functions for SQLite.

  • series.c — This is an implementation of the "generate_series" virtual table. It can make a good template for new custom virtual table implementations.

  • shathree.c — An implementation of the sha3() and sha3_query() SQL functions. The file is named "shathree.c" instead of "sha3.c" because the default entry point names in SQLite are based on the source filename with digits removed, so if we used the name "sha3.c" then the entry point would conflict with the prior "sha1.c" extension.

  • unionvtab.c — Implementation of the unionvtab and swarmvtab virtual tables. These virtual tables allow a single large table to be spread out across multiple database files. In the case of swarmvtab, the individual database files can be attached on demand.

  • zipfile.c — A virtual table that can read and write a ZIP archive.