20231201

	+ ocaml: support IN @x via text substitution
	+ sql: support batch insert with syntax INSERT INTO x(...) VALUES @xs
	+ sql: rudimentary NULL handling (direct column assignments)
	+ sql: multi-table DELETE
	+ ocaml: update traits to track read/write nature of ops
	* ocaml: cleanup whitespace
	* sql: implicitly convert int<->decimal, require explicit cast for float<->decimal
	+ sql: more string and window functions
	+ sql: CAST, FLOOR, MOD, CONVERT, AS (expr), DROP FOREIGN KEY, ALTER TABLE .. [CONVERT TO] CHARACTER SET .., ALTER TABLE ... ADD CONSTRAINT
	* sql: fix table alias handling
	+ cli: -static-header
	* sql: fix DATE type
	* sql: fix ORDER BY with multiple params

20200521

* switch versioning scheme
* switch build system to dune
* sql: EXISTS, nested JOINs, SUBSTRING, DROP VIEW, ALTER RENAME,
	RENAME TABLE, DIV, MOD, LAST_INSERT_ID, UNIX_TIMESTAMP(DATE),
	TIMESTAMPDIFF, TIMESTAMPADD, DATE, TIME, POW, INSERT DEFAULT
* sql: INSERT scope fixes
* ocaml: monadic IO with `-gen caml_io`
* ocaml: mariadb traits
* ocaml: parameters in callbacks are now named
* sql: variant parameters (ocaml only)
* traits: + Decimal
* typing: rudimentary NULL support
* sql: do not fail on unknown functions (treat as untyped and emit warning)
* gen: allow filtering by DDL, DML, DQL, etc

0.4.5

* improve type resolution for functions
* improve single-row detection
* improve type for numeric expressions a bit
* sql: ANY_VALUE, IS NOT DISTINCT FROM, COUNT(DISTINCT ...), from_unixtime,
	IFNULL, NULLIF, multi-value INSERT
* sql: more datetime functions (sqlite)
* caml: generate List module
* forbid `-params none` with autogenerated parameters
* mysql: allow override value types

0.4.4

* build: switch to ppx_deriving, fixes build with OCaml 4.06

0.4.3

build: fix again

0.4.2

• fix build

0.4.1

* build: do not require mysql and sqlite3

0.4.0

* sql: many typing improvements
* sql: SELECT FOR UPDATE, ON UPDATE, ON DELETE, ON DUPLICATE KEY UPDATE,
	IS NOT? NULL, INTERVAL, CREATE INDEX column(N), VALUES function, UUID,
	SELECT IF
* sql: parse stored procedures
* sql: dynamically add functions
* ocaml: support multiple substitutions in queries
* ocaml: install traits and implementations as subpackages