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Moved type support to support functions [skip ci]

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This commit is contained in:
Andrew Kane
2024-04-23 12:51:04 -07:00
parent d1b83991af
commit 3172d7ef57
8 changed files with 151 additions and 72 deletions
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52
src/hnswutils.c
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@@ -13,7 +13,6 @@
#include "utils/datum.h"
#include "utils/memdebug.h"
#include "utils/rel.h"
#include "utils/syscache.h"
#if PG_VERSION_NUM >= 130000
#include "common/hashfn.h"
@@ -159,32 +158,17 @@ HnswOptionalProcInfo(Relation index, uint16 procnum)
HnswType
HnswGetType(Relation index)
{
FmgrInfo *procinfo = HnswOptionalProcInfo(index, HNSW_TYPE_SUPPORT_PROC);
Oid typid = TupleDescAttr(index->rd_att, 0)->atttypid;
HeapTuple tuple;
Form_pg_type type;
HnswType result;
if (typid == BITOID)
return HNSW_TYPE_BIT;
if (procinfo == NULL)
return HNSW_TYPE_VECTOR;
tuple = SearchSysCache1(TYPEOID, ObjectIdGetDatum(typid));
if (!HeapTupleIsValid(tuple))
elog(ERROR, "cache lookup failed for type %u", typid);
result = (HnswType) DatumGetInt32(FunctionCall1(procinfo, ObjectIdGetDatum(typid)));
type = (Form_pg_type) GETSTRUCT(tuple);
if (strcmp(NameStr(type->typname), "vector") == 0)
result = HNSW_TYPE_VECTOR;
else if (strcmp(NameStr(type->typname), "halfvec") == 0)
result = HNSW_TYPE_HALFVEC;
else if (strcmp(NameStr(type->typname), "sparsevec") == 0)
result = HNSW_TYPE_SPARSEVEC;
else
{
ReleaseSysCache(tuple);
if (result == HNSW_TYPE_UNSUPPORTED)
elog(ERROR, "type not supported for hnsw index");
}
ReleaseSysCache(tuple);
return result;
}
@@ -1318,3 +1302,29 @@ HnswFindElementNeighbors(char *base, HnswElement element, HnswElement entryPoint
ep = w;
}
}
PGDLLEXPORT PG_FUNCTION_INFO_V1(halfvec_hnsw_support);
Datum
halfvec_hnsw_support(PG_FUNCTION_ARGS)
{
PG_RETURN_INT32(HNSW_TYPE_HALFVEC);
};
PGDLLEXPORT PG_FUNCTION_INFO_V1(bit_hnsw_support);
Datum
bit_hnsw_support(PG_FUNCTION_ARGS)
{
Oid typid = PG_GETARG_OID(0);
if (typid == BITOID)
PG_RETURN_INT32(HNSW_TYPE_BIT);
else
PG_RETURN_INT32(HNSW_TYPE_UNSUPPORTED);
};
PGDLLEXPORT PG_FUNCTION_INFO_V1(sparsevec_hnsw_support);
Datum
sparsevec_hnsw_support(PG_FUNCTION_ARGS)
{
PG_RETURN_INT32(HNSW_TYPE_SPARSEVEC);
};