diff options
Diffstat (limited to 'src/backend/access/gin/ginutil.c')
| -rw-r--r-- | src/backend/access/gin/ginutil.c | 57 |
1 files changed, 50 insertions, 7 deletions
diff --git a/src/backend/access/gin/ginutil.c b/src/backend/access/gin/ginutil.c index c1c69cef1d1..94502678abb 100644 --- a/src/backend/access/gin/ginutil.c +++ b/src/backend/access/gin/ginutil.c @@ -1,7 +1,7 @@ /*------------------------------------------------------------------------- * * ginutil.c - * utilities routines for the postgres inverted index access method. + * Utility routines for the Postgres inverted index access method. * * * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group @@ -22,9 +22,54 @@ #include "miscadmin.h" #include "storage/indexfsm.h" #include "storage/lmgr.h" +#include "utils/index_selfuncs.h" /* + * GIN handler function: return IndexAmRoutine with access method parameters + * and callbacks. + */ +Datum +ginhandler(PG_FUNCTION_ARGS) +{ + IndexAmRoutine *amroutine = makeNode(IndexAmRoutine); + + amroutine->amstrategies = 0; + amroutine->amsupport = 6; + amroutine->amcanorder = false; + amroutine->amcanorderbyop = false; + amroutine->amcanbackward = false; + amroutine->amcanunique = false; + amroutine->amcanmulticol = true; + amroutine->amoptionalkey = true; + amroutine->amsearcharray = false; + amroutine->amsearchnulls = false; + amroutine->amstorage = true; + amroutine->amclusterable = false; + amroutine->ampredlocks = false; + amroutine->amkeytype = InvalidOid; + + amroutine->ambuild = ginbuild; + amroutine->ambuildempty = ginbuildempty; + amroutine->aminsert = gininsert; + amroutine->ambulkdelete = ginbulkdelete; + amroutine->amvacuumcleanup = ginvacuumcleanup; + amroutine->amcanreturn = NULL; + amroutine->amcostestimate = gincostestimate; + amroutine->amoptions = ginoptions; + amroutine->amvalidate = ginvalidate; + amroutine->ambeginscan = ginbeginscan; + amroutine->amrescan = ginrescan; + amroutine->amgettuple = NULL; + amroutine->amgetbitmap = gingetbitmap; + amroutine->amendscan = ginendscan; + amroutine->ammarkpos = NULL; + amroutine->amrestrpos = NULL; + + PG_RETURN_POINTER(amroutine); +} + +/* * initGinState: fill in an empty GinState struct to describe the index * * Note: assorted subsidiary data is allocated in the CurrentMemoryContext. @@ -516,11 +561,9 @@ ginExtractEntries(GinState *ginstate, OffsetNumber attnum, return entries; } -Datum -ginoptions(PG_FUNCTION_ARGS) +bytea * +ginoptions(Datum reloptions, bool validate) { - Datum reloptions = PG_GETARG_DATUM(0); - bool validate = PG_GETARG_BOOL(1); relopt_value *options; GinOptions *rdopts; int numoptions; @@ -535,7 +578,7 @@ ginoptions(PG_FUNCTION_ARGS) /* if none set, we're done */ if (numoptions == 0) - PG_RETURN_NULL(); + return NULL; rdopts = allocateReloptStruct(sizeof(GinOptions), options, numoptions); @@ -544,7 +587,7 @@ ginoptions(PG_FUNCTION_ARGS) pfree(options); - PG_RETURN_BYTEA_P(rdopts); + return (bytea *) rdopts; } /* |