Support DSL [ Context ].hint(...). { select() | selectFrom() | insertInto() | ... }

[lukaseder]

See an example application of such hints here:
http://stackoverflow.com/q/10421806/521799

Parallel processing for inserts.

The new suggested syntax will prepend the hint to the entire statement:

ctx.hint("/*+FIRST_ROWS*/")
   .select()
   .from(T)
   .fetch();

ctx.hint("/*+APPEND*/")
   .insertInto(T)
   .values(...)
   .execute();

This way, we can also support hints for selectFrom() statements, etc. (#5911), and the syntax is uniform.

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See also:

• http://stackoverflow.com/q/37276221/521799
• Support Oracle / YugabyteDB JOIN hints also in DML #15814