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Commit919ace0

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Fix vacuum analyze error.
vacuum analyze on pg_type fails if bogus entries remain in pg_operator.Here is a sample script to reproduce the problem.drop table t1;create table t1(i int);drop function foo(t1,t1);create function foo(t1,t1) returns bool as 'select true' language 'sql';create operator = (leftarg = t1,rightarg = t1,commutator = =,procedure = foo);drop table t1;vacuum analyze;
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‎src/backend/parser/parse_coerce.c

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@@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/parser/parse_coerce.c,v 2.54 2001/01/24 19:43:01 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/parser/parse_coerce.c,v 2.55 2001/02/27 07:07:00 ishii Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -225,6 +225,12 @@ can_coerce_type(int nargs, Oid *input_typeids, Oid *func_typeids)
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if (typeInheritsFrom(inputTypeId,targetTypeId))
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continue;
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/* don't choke on references to no-longer-existing types */
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if (!typeidIsValid(inputTypeId))
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return false;
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if (!typeidIsValid(targetTypeId))
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return false;
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/*
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* Else, try for explicit conversion using functions: look for a
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* single-argument function named with the target type name and

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