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pg_dump: Dump operators with the same name ordered by arity

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pg_dump sorts operators by name, but operators with the same name come
out in random order.  Now operators with the same name are dumped in
the order prefix, postfix, infix.  (This is consistent with functions,
which are dumped in increasing number of argument order.)
This commit is contained in:
Peter Eisentraut 2012-01-05 20:34:07 +02:00
parent 104e7dac28
commit 15df037845
3 changed files with 17 additions and 0 deletions
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6
src/bin/pg_dump/pg_dump.c
View File

@ -3138,6 +3138,7 @@ getOperators(int *numOprs)
int i_oprname;
int i_oprnamespace;
int i_rolname;
int i_oprkind;
int i_oprcode;
/*
@ -3153,6 +3154,7 @@ getOperators(int *numOprs)
appendPQExpBuffer(query, "SELECT tableoid, oid, oprname, "
"oprnamespace, "
"(%s oprowner) AS rolname, "
"oprkind, "
"oprcode::oid AS oprcode "
"FROM pg_operator",
username_subquery);
@ -3162,6 +3164,7 @@ getOperators(int *numOprs)
appendPQExpBuffer(query, "SELECT tableoid, oid, oprname, "
"0::oid AS oprnamespace, "
"(%s oprowner) AS rolname, "
"oprkind, "
"oprcode::oid AS oprcode "
"FROM pg_operator",
username_subquery);
@ -3173,6 +3176,7 @@ getOperators(int *numOprs)
"oid, oprname, "
"0::oid AS oprnamespace, "
"(%s oprowner) AS rolname, "
"oprkind, "
"oprcode::oid AS oprcode "
"FROM pg_operator",
username_subquery);
@ -3191,6 +3195,7 @@ getOperators(int *numOprs)
i_oprname = PQfnumber(res, "oprname");
i_oprnamespace = PQfnumber(res, "oprnamespace");
i_rolname = PQfnumber(res, "rolname");
i_oprkind = PQfnumber(res, "oprkind");
i_oprcode = PQfnumber(res, "oprcode");
for (i = 0; i < ntups; i++)
@ -3203,6 +3208,7 @@ getOperators(int *numOprs)
oprinfo[i].dobj.namespace = findNamespace(atooid(PQgetvalue(res, i, i_oprnamespace)),
oprinfo[i].dobj.catId.oid);
oprinfo[i].rolname = pg_strdup(PQgetvalue(res, i, i_rolname));
oprinfo[i].oprkind = (PQgetvalue(res, i, i_oprkind))[0];
oprinfo[i].oprcode = atooid(PQgetvalue(res, i, i_oprcode));
/* Decide whether we want to dump it */

1
src/bin/pg_dump/pg_dump.h
View File

@ -204,6 +204,7 @@ typedef struct _oprInfo
{
DumpableObject dobj;
char *rolname;
char oprkind;
Oid oprcode;
} OprInfo;

10
src/bin/pg_dump/pg_dump_sort.c
View File

@ -178,6 +178,16 @@ DOTypeNameCompare(const void *p1, const void *p2)
if (cmpval != 0)
return cmpval;
}
else if (obj1->objType == DO_OPERATOR)
{
OprInfo *oobj1 = *(OprInfo * const *) p1;
OprInfo *oobj2 = *(OprInfo * const *) p2;
/* oprkind is 'l', 'r', or 'b'; this sorts prefix, postfix, infix */
cmpval = (oobj2->oprkind - oobj1->oprkind);
if (cmpval != 0)
return cmpval;
}
/* Usually shouldn't get here, but if we do, sort by OID */
return oidcmp(obj1->catId.oid, obj2->catId.oid);