Detect stray NOT in Parser.readCondition()

h2/src/main/org/h2/command/Parser.java

@@ -2846,6 +2846,9 @@ public class Parser {
                         Comparison.BIGGER_EQUAL, high, r);
                 r = new ConditionAndOr(ConditionAndOr.AND, condLow, condHigh);
             } else {
+                if (not) {
+                    throw getSyntaxError();
+                }
                 int compareType = getCompareType(currentTokenType);
                 if (compareType < 0) {
                     break;

h2/src/test/org/h2/test/scripts/dml/error_reporting.sql

@@ -10,4 +10,10 @@ select * from test where id = (1, 2);
 > exception COMPARING_ARRAY_TO_SCALAR
 
 drop table test;
-> ok
\ No newline at end of file
+> ok
+
+SELECT 1 + 2 NOT;
+> exception SYNTAX_ERROR_2
+
+SELECT 1 NOT > 2;
+> exception SYNTAX_ERROR_2