Firebird 2.1 Language Reference Update

Example:
DML statements
plan (MyTable order ix_myfield index (ix_this, ix_that))
PLAN must include all tables
Changed in: 2.0
Description: In Firebird 2 and up, a PLAN clause must handle all the tables in the query. Previous versions
sometimes accepted incomplete plans, but this is no longer the case.
Relation alias makes real name unavailable
Changed in: 2.0
Description: If you give a table or view an alias in a Firebird 2.0 or above statement, you must use the alias, not
the table name, if you want to qualify fields from that relation.
Examples:
ROWS
Correct usage:
select pears from Fruit
select Fruit.pears from Fruit
select pears from Fruit F
select F.pears from Fruit F
No longer possible:
select Fruit.pears from Fruit F
Available in: DSQL, PSQL
Added in: 2.0
Description: Limits the amount of rows returned by the SELECT statement to a specified number or range.
Syntax:
With a single SELECT:
SELECT FROM ...
[WHERE ...]
[ORDER BY ...]
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