> UPDATE table SET table.par = table.par + 1
> WHERE table.key IN ('value1', 'value2', ... , 'value1200' )
How fast is the query alone, i.e.
SELECT * FROM table
WHERE table.key IN ('value1', 'value2', ... , 'value1200' )
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TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match
