GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
RedHat 5.2(Apollo) |
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drop_operator(l) |
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drop operator - remove an operator from the system
drop operator opr_desc
This command drops an existing operator from the database. To execute this command you must be the owner of the operator.
Opr_desc is the name of the operator to be removed followed by a parenthesized list of the operand types for the operator. The left or right type of a left or right unary operator, respectively, may be specified as none.
It is the user’s responsibility to remove any access methods, operator classes, etc. that rely on the deleted operator.
--
--Remove power operator a^n for int4
--
drop operator ^ (int4, int4)
--
--Remove left unary operator !a for booleans
--
drop operator ! (none, bool)
--
--Remove right unary factorial operator a! for int4
--
drop operator ! (int4, none)
create operator(l).
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drop_operator(l) | |