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[DO NOT MERGE] Add syscache for babelfish_authid_user_ext catalog #214

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[DO NOT MERGE] Add syscache for babelfish_authid_user_ext catalog #214

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30 changes: 30 additions & 0 deletions src/backend/utils/cache/catcache.c
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,7 @@
#include "common/hashfn.h"
#include "miscadmin.h"
#include "port/pg_bitutils.h"
#include "parser/parser.h"
#ifdef CATCACHE_STATS
#include "storage/ipc.h" /* for on_proc_exit */
#endif
Expand All @@ -39,6 +40,7 @@
#include "utils/rel.h"
#include "utils/resowner_private.h"
#include "utils/syscache.h"
#include "utils/lsyscache.h"


/* #define CACHEDEBUG */ /* turns DEBUG elogs on */
Expand Down Expand Up @@ -255,6 +257,34 @@ GetCCHashEqFuncs(Oid keytype, CCHashFN *hashfunc, RegProcedure *eqfunc, CCFastEq
*eqfunc = F_OIDVECTOREQ;
break;
default:
if (sql_dialect == SQL_DIALECT_TSQL)
{
HeapTuple tp;
Form_pg_type typtuple;
char *typname = NULL;
char *nspname = NULL;
tp = SearchSysCache1(TYPEOID, ObjectIdGetDatum(keytype));
if (!HeapTupleIsValid(tp))
elog(ERROR, "cache lookup failed for type %u", keytype);
typtuple = (Form_pg_type) GETSTRUCT(tp);
typname = NameStr(typtuple->typname);

nspname = get_namespace_name(typtuple->typnamespace);
if (!nspname)
elog(ERROR, "cache lookup failed for namespace %u",
typtuple->typnamespace);

ReleaseSysCache(tp);
elog(LOG, "%s.%s",nspname, typname);

if (strcmp(nspname, "sys") == 0 && strcmp(typname, "nvarchar") == 0)
{
*hashfunc = texthashfast;
*fasteqfunc = texteqfast;
*eqfunc = F_TEXTEQ;
break;
}
}
elog(FATAL, "type %u not supported as catcache key", keytype);
*hashfunc = NULL; /* keep compiler quiet */

Expand Down
5 changes: 3 additions & 2 deletions src/include/utils/syscache.h
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Expand Up @@ -121,10 +121,11 @@ enum SysCacheIdentifier
*/
SYSDATABASEOID,
SYSDATABASENAME,
PROCNSPSIGNATURE
PROCNSPSIGNATURE,
TSQLUSERMAP

#define SysCacheNoExtensionSize (USERMAPPINGUSERSERVER+ 1)
#define SysCacheSize (PROCNSPSIGNATURE + 1)
#define SysCacheSize (TSQLUSERMAP + 1)
};

/*
Expand Down