Documentation.

h2/src/docsrc/help/help.csv

@@ -1913,6 +1913,7 @@ SELECT -1.4e-10
 summand [ { || summand } [...] ]
 ","
 A value or a concatenation of values.
+In the default mode, the result is NULL if either parameter is NULL.
 ","
 'Hi' || ' Eva'
 "
@@ -2929,6 +2930,8 @@ CHAR(65)
 CONCAT(string, string [,...])
 ","
 Combines strings.
+Unlike with the operator ""||"", NULL parameters are ignored, 
+and do not cause the result to become NULL.
 This method returns a string.
 ","
 CONCAT(NAME, '!')
@@ -2938,6 +2941,8 @@ CONCAT(NAME, '!')
 CONCAT_WS(separatorString, string, string [,...])
 ","
 Combines strings with separator.
+Unlike with the operator ""||"", NULL parameters are ignored, 
+and do not cause the result to become NULL.
 This method returns a string.
 ","
 CONCAT_WS(',', NAME, '!')

h2/src/docsrc/html/mvstore.html

@@ -435,12 +435,12 @@ The following exceptions can occur:
 The plan is to use the MVStore as the default storage engine for the H2 database
 in the future (supporting SQL, JDBC, transactions, MVCC, and so on).
 This is work in progress. To try it out, append
-<code>;DEFAULT_TABLE_ENGINE=org.h2.mvstore.db.MVTableEngine</code>
+<code>;MV_STORE=TRUE</code>
 to the database URL. In general, functionality and performance should be
 similar than the current default storage engine (the page store).
 There are a few features that have not been implemented yet or are not complete:
 </p>
-<ul><li>The database metadata is still stored in a <code>.h2.db</code> file,
+<ul><li>There is still a file <code>.h2.db</code>,
     and the <code>.lock.db</code> file is still used to lock a database
     (long term, the plan is to no longer use those files).
 </li><li>The database file(s) sometimes do not shrink as expected.

h2/src/tools/org/h2/build/doc/dictionary.txt

@@ -730,4 +730,7 @@ customizers retains scalability assuming gili cancelled departments juerg
 franklin indicated offending unimplemented executors dumping variants
 presence spiess azeckoski aaron cowwoc decompiles canceling vividsolutions
 quadtree envelope geometry polygon typname intersects wkt intersects wkb
-coordinate geometric rates cope attempting sphere
+coordinate geometric rates cope attempting sphere hyde clinton
+
+computation varies
+