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Fix pg_dump to dump casts between auto-generated types.

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The heuristic for when to dump a cast failed for a cast between table
rowtypes, as reported by Frédéric Rejol.  Fix it by setting
the "dump" flag for such a type the same way as the flag is set for the
underlying table or base type.  This won't result in the auto-generated
type appearing in the output, since setting its objType to DO_DUMMY_TYPE
unconditionally suppresses that.  But it will result in dumpCast doing what
was intended.

Back-patch to 8.3.  The 8.2 code is rather different in this area, and it
doesn't seem worth any risk to fix a corner case that nobody has stumbled
on before.
This commit is contained in:
Tom Lane 2011-10-18 17:11:01 -04:00
parent 8c1501b292
commit 35d6ce97e7
2 changed files with 21 additions and 7 deletions
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2
src/bin/pg_dump/common.c
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@ -125,7 +125,7 @@ getSchemaData(int *numTablesPtr)
funinfo = getFuncs(&numFuncs); funinfo = getFuncs(&numFuncs);
funinfoindex = buildIndexArray(funinfo, numFuncs, sizeof(FuncInfo)); funinfoindex = buildIndexArray(funinfo, numFuncs, sizeof(FuncInfo));
/* this must be after getFuncs */ /* this must be after getTables and getFuncs */
if (g_verbose) if (g_verbose)
write_msg(NULL, "reading user-defined types\n"); write_msg(NULL, "reading user-defined types\n");
typinfo = getTypes(&numTypes); typinfo = getTypes(&numTypes);

26
src/bin/pg_dump/pg_dump.c
View File

@ -1093,8 +1093,11 @@ selectDumpableTable(TableInfo *tbinfo)
* If it's a table's rowtype or an autogenerated array type, we also apply a * If it's a table's rowtype or an autogenerated array type, we also apply a
* special type code to facilitate sorting into the desired order. (We don't * special type code to facilitate sorting into the desired order. (We don't
* want to consider those to be ordinary types because that would bring tables * want to consider those to be ordinary types because that would bring tables
* up into the datatype part of the dump order.) Those tests should be made * up into the datatype part of the dump order.) We still set the object's
* first to ensure the objType change is applied regardless of namespace etc. * dump flag; that's not going to cause the dummy type to be dumped, but we
* need it so that casts involving such types will be dumped correctly -- see
* dumpCast. This means the flag should be set the same as for the underlying
* object (the table or base type).
*/ */
static void static void
selectDumpableType(TypeInfo *tyinfo) selectDumpableType(TypeInfo *tyinfo)
@ -1103,19 +1106,30 @@ selectDumpableType(TypeInfo *tyinfo)
if (OidIsValid(tyinfo->typrelid) && if (OidIsValid(tyinfo->typrelid) &&
tyinfo->typrelkind != RELKIND_COMPOSITE_TYPE) tyinfo->typrelkind != RELKIND_COMPOSITE_TYPE)
{ {
tyinfo->dobj.dump = false; TableInfo *tytable = findTableByOid(tyinfo->typrelid);
tyinfo->dobj.objType = DO_DUMMY_TYPE; tyinfo->dobj.objType = DO_DUMMY_TYPE;
if (tytable != NULL)
tyinfo->dobj.dump = tytable->dobj.dump;
else
tyinfo->dobj.dump = false;
return;
} }
/* skip auto-generated array types */ /* skip auto-generated array types */
else if (tyinfo->isArray) if (tyinfo->isArray)
{ {
tyinfo->dobj.dump = false;
tyinfo->dobj.objType = DO_DUMMY_TYPE; tyinfo->dobj.objType = DO_DUMMY_TYPE;
/*
* Fall through to set the dump flag; we assume that the subsequent
* rules will do the same thing as they would for the array's base
* type. (We cannot reliably look up the base type here, since
* getTypes may not have processed it yet.)
*/
} }
/* dump only types in dumpable namespaces */ /* dump only types in dumpable namespaces */
else if (!tyinfo->dobj.namespace->dobj.dump) if (!tyinfo->dobj.namespace->dobj.dump)
tyinfo->dobj.dump = false; tyinfo->dobj.dump = false;
/* skip undefined placeholder types */ /* skip undefined placeholder types */