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Operators live in namespaces. CREATE/DROP/COMMENT ON OPERATOR take

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qualified operator names directly, for example CREATE OPERATOR myschema.+
( ... ).  To qualify an operator name in an expression you need to write
OPERATOR(myschema.+) (thanks to Peter for suggesting an escape hatch).
I also took advantage of having to reformat pg_operator to fix something
that'd been bugging me for a while: mergejoinable operators should have
explicit links to the associated cross-data-type comparison operators,
rather than hardwiring an assumption that they are named < and >.
This commit is contained in:
Tom Lane
2002-04-16 23:08:12 +00:00
parent 4da51bfd6d
commit 6cef5d2549
39 changed files with 1953 additions and 1803 deletions
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6
src/test/regress/expected/errors.out
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@@ -173,13 +173,13 @@ drop operator;
ERROR: parser: parse error at or near ";"
-- bad operator name
drop operator equals;
ERROR: parser: parse error at or near "equals"
ERROR: parser: parse error at or near ";"
-- missing type list
drop operator ===;
ERROR: parser: parse error at or near ";"
-- missing parentheses
drop operator int4, int4;
ERROR: parser: parse error at or near "int4"
ERROR: parser: parse error at or near ","
-- missing operator name
drop operator (int4, int4);
ERROR: parser: parse error at or near "("
@@ -191,7 +191,7 @@ drop operator === (int4);
ERROR: parser: argument type missing (use NONE for unary operators)
-- no such operator by that name
drop operator === (int4, int4);
ERROR: RemoveOperator: binary operator '===' taking 'int4' and 'int4' does not exist
ERROR: RemoveOperator: Operator '===' for types 'int4' and 'int4' does not exist
-- no such type1
drop operator = (nonesuch);
ERROR: parser: argument type missing (use NONE for unary operators)