addresses #288 by adding xtdb as a :dbtype

Signed-off-by: Sean Corfield <sean@corfield.org>

CHANGELOG.md

@@ -3,6 +3,7 @@
 Only accretive/fixative changes will be made from now on.
 
 * 1.3.next in progress
+  * Address [#288](https://github.com/seancorfield/next-jdbc/issues/288) by adding speculative support for `:dbtype "xtdb"`.
   * Fix [#287](https://github.com/seancorfield/next-jdbc/issues/287) by merging user-supplied options over `:return-keys true`.
   * Fix [#282](https://github.com/seancorfield/next-jdbc/issues/282) by tracking raw `Connection` objects for active TXs, which relaxes several of the conditions around nested transactions.
 

src/next/jdbc.clj

@@ -137,6 +137,7 @@
   * `sqlserver`, `mssql` -- `com.microsoft.sqlserver.jdbc.SQLServerDriver` -- `1433`
   * `timesten:client` -- `com.timesten.jdbc.TimesTenClientDriver`
   * `timesten:direct` -- `com.timesten.jdbc.TimesTenDriver`
+  * `xtdb` -- `xtdb.jdbc.Driver` -- an XTDB wrapper around `postgresql`
 
   For more details about `:dbtype` and `:classname` values, see:
   https://cljdoc.org/d/com.github.seancorfield/next.jdbc/CURRENT/api/next.jdbc.connection#dbtypes"

src/next/jdbc/connection.clj

@@ -130,7 +130,9 @@
                       :host :none}
    "timesten:direct" {:classname "com.timesten.jdbc.TimesTenDriver"
                       :dbname-separator ":dsn="
-                      :host :none}})
+                      :host :none}
+   "xtdb"            {:classname "xtdb.jdbc.Driver"
+                      :port 5432}})
 
 (def ^:private driver-cache
   "An optimization for repeated calls to get-datasource, or for get-connection