- Update to 3.43.0:
* Add support for Contentless-Delete FTS5 Indexes. This is a variety of FTS5 full-text search index that omits storing the content that is being indexed while also allowing records to be deleted.
* Enhancements to the date and time functions:
+ Added new time shift modifiers of the form ±YYYY-MM-DD HH:MM:SS.SSS.
+ Added the timediff() SQL function.
* Added the octet_length(X) SQL function.
* Added the sqlite3_stmt_explain() API.
* Query planner enhancements:
+ Generalize the LEFT JOIN strength reduction optimization so that it works for RIGHT and FULL JOINs as well. Rename it to OUTER JOIN strength reduction.
+ Enhance the theorem prover in the OUTER JOIN strength reduction optimization so that it returns fewer false-negatives.
* Enhancements to the decimal extension:
+ New function decimal_pow2(N) returns the N-th power of 2 for integer N between -20000 and +20000.
+ New function decimal_exp(X) works like decimal(X) except that it returns the result in exponential notation - with a "e+NN" at the end.
+ If X is a floating-point value, then the decimal(X) function now does a full expansion of that value into its exact decimal equivalent.
* Performance enhancements to JSON processing results in a 2x performance improvement for some kinds of processing on large JSON strings.
* The VFS for unix now assumes that the nanosleep() system call is available unless compiled with -DHAVE_NANOSLEEP=0.