[tag=FW | tag=□]
[tag=FW | tag=DT]
[tag=FW | tag=FW]
And the same obsolete scan is done once more in the UPDATE . the others The other parts of the querytree like the ORDER BY clause arent of interest here . These operators must be named ' <' and '> ' ; you do not have any choice in the matter , since there is no provision for specifying them explicitly . Well-accepted , path-breaking research on learning ( see , for example , Bransford , et al ., " How People Learn " , and Claude Steele 's work on " stereotype threat " ) , shows that expectations heavily influence performance , particularly on tests . If the pg_dumpall command seems to take a long time and you think it might have died , then , from another terminal , type $ ls - l db.out several times to see if the size of the file is growing . Inheritance of functions is done according to the conventions of the Common Lisp Object System ( CLOS ) . There must be ' <' and '> ' ordering operators having the same left and right input datatypes as the mergejoinable operator itself . The database needed to play on the examples is named al_bundy .