diff options
Diffstat (limited to 'src/backend/access/gist/gist.c')
| -rw-r--r-- | src/backend/access/gist/gist.c | 76 |
1 files changed, 54 insertions, 22 deletions
diff --git a/src/backend/access/gist/gist.c b/src/backend/access/gist/gist.c index 834d9d3335..996363c2de 100644 --- a/src/backend/access/gist/gist.c +++ b/src/backend/access/gist/gist.c @@ -14,17 +14,15 @@ */ #include "postgres.h" -#include "access/genam.h" #include "access/gist_private.h" -#include "access/xloginsert.h" -#include "catalog/index.h" +#include "access/gistscan.h" #include "catalog/pg_collation.h" #include "miscadmin.h" -#include "storage/bufmgr.h" -#include "storage/indexfsm.h" +#include "utils/index_selfuncs.h" #include "utils/memutils.h" #include "utils/rel.h" + /* non-export function prototypes */ static void gistfixsplit(GISTInsertState *state, GISTSTATE *giststate); static bool gistinserttuple(GISTInsertState *state, GISTInsertStack *stack, @@ -50,6 +48,50 @@ static void gistvacuumpage(Relation rel, Page page, Buffer buffer); /* + * GiST handler function: return IndexAmRoutine with access method parameters + * and callbacks. + */ +Datum +gisthandler(PG_FUNCTION_ARGS) +{ + IndexAmRoutine *amroutine = makeNode(IndexAmRoutine); + + amroutine->amstrategies = 0; + amroutine->amsupport = 9; + amroutine->amcanorder = false; + amroutine->amcanorderbyop = true; + amroutine->amcanbackward = false; + amroutine->amcanunique = false; + amroutine->amcanmulticol = true; + amroutine->amoptionalkey = true; + amroutine->amsearcharray = false; + amroutine->amsearchnulls = true; + amroutine->amstorage = true; + amroutine->amclusterable = true; + amroutine->ampredlocks = false; + amroutine->amkeytype = InvalidOid; + + amroutine->ambuild = gistbuild; + amroutine->ambuildempty = gistbuildempty; + amroutine->aminsert = gistinsert; + amroutine->ambulkdelete = gistbulkdelete; + amroutine->amvacuumcleanup = gistvacuumcleanup; + amroutine->amcanreturn = gistcanreturn; + amroutine->amcostestimate = gistcostestimate; + amroutine->amoptions = gistoptions; + amroutine->amvalidate = gistvalidate; + amroutine->ambeginscan = gistbeginscan; + amroutine->amrescan = gistrescan; + amroutine->amgettuple = gistgettuple; + amroutine->amgetbitmap = gistgetbitmap; + amroutine->amendscan = gistendscan; + amroutine->ammarkpos = NULL; + amroutine->amrestrpos = NULL; + + PG_RETURN_POINTER(amroutine); +} + +/* * Create and return a temporary memory context for use by GiST. We * _always_ invoke user-provided methods in a temporary memory * context, so that memory leaks in those functions cannot cause @@ -70,10 +112,9 @@ createTempGistContext(void) /* * gistbuildempty() -- build an empty gist index in the initialization fork */ -Datum -gistbuildempty(PG_FUNCTION_ARGS) +void +gistbuildempty(Relation index) { - Relation index = (Relation) PG_GETARG_POINTER(0); Buffer buffer; /* Initialize the root page */ @@ -89,8 +130,6 @@ gistbuildempty(PG_FUNCTION_ARGS) /* Unlock and release the buffer */ UnlockReleaseBuffer(buffer); - - PG_RETURN_VOID(); } /* @@ -99,18 +138,11 @@ gistbuildempty(PG_FUNCTION_ARGS) * This is the public interface routine for tuple insertion in GiSTs. * It doesn't do any work; just locks the relation and passes the buck. */ -Datum -gistinsert(PG_FUNCTION_ARGS) +bool +gistinsert(Relation r, Datum *values, bool *isnull, + ItemPointer ht_ctid, Relation heapRel, + IndexUniqueCheck checkUnique) { - Relation r = (Relation) PG_GETARG_POINTER(0); - Datum *values = (Datum *) PG_GETARG_POINTER(1); - bool *isnull = (bool *) PG_GETARG_POINTER(2); - ItemPointer ht_ctid = (ItemPointer) PG_GETARG_POINTER(3); - -#ifdef NOT_USED - Relation heapRel = (Relation) PG_GETARG_POINTER(4); - IndexUniqueCheck checkUnique = (IndexUniqueCheck) PG_GETARG_INT32(5); -#endif IndexTuple itup; GISTSTATE *giststate; MemoryContext oldCxt; @@ -136,7 +168,7 @@ gistinsert(PG_FUNCTION_ARGS) MemoryContextSwitchTo(oldCxt); freeGISTstate(giststate); - PG_RETURN_BOOL(false); + return false; } |