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#include "fmgr.h" |
#include "fmgr.h" |
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#include "funcapi.h" |
#include "funcapi.h" |
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#include "utils/builtins.h" |
#include "utils/builtins.h" |
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#include "utils/array.h" |
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#include "miscadmin.h" |
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#include <swish-e.h> |
#include <swish-e.h> |
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#define _textin(str) DirectFunctionCall1(textin, CStringGetDatum(str)) |
#define _textin(str) DirectFunctionCall1(textin, CStringGetDatum(str)) |
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values[3] = (char *) palloc(16 * sizeof(char)); |
values[3] = (char *) palloc(16 * sizeof(char)); |
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snprintf(values[3], 16, "%d", 4); |
snprintf(values[3], 16, "%d", 4); |
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*/ |
*/ |
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/* build a tuple */ |
/* build a tuple */ |
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tuple = BuildTupleFromCStrings(attinmeta, values); |
tuple = BuildTupleFromCStrings(attinmeta, values); |
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} |
} |
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} |
} |
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Datum swtextprop(PG_FUNCTION_ARGS) { |
/* work in progress */ |
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char *prop; |
PG_FUNCTION_INFO_V1(pgswish2); |
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char *val; |
Datum pgswish2(PG_FUNCTION_ARGS) |
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{ |
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int ncols = 2; |
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int nrows = 3; |
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int16 typlen; |
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bool typbyval; |
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char typalign; |
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ReturnSetInfo *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo; |
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AttInMetadata *attinmeta; |
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TupleDesc tupdesc; |
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Tuplestorestate *tupstore = NULL; |
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HeapTuple tuple; |
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MemoryContext per_query_ctx; |
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MemoryContext oldcontext; |
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Datum dvalue; |
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char **values; |
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int rsinfo_ncols; |
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int i, j; |
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/* check to see if caller supports us returning a tuplestore */ |
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if (!rsinfo || !(rsinfo->allowedModes & SFRM_Materialize)) |
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ereport(ERROR, |
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(errcode(ERRCODE_SYNTAX_ERROR), |
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errmsg("materialize mode required, but it is not " \ |
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"allowed in this context"))); |
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/* get the requested return tuple description */ |
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tupdesc = rsinfo->expectedDesc; |
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rsinfo_ncols = tupdesc->natts; |
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/* |
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* The requested tuple description better match up with the array |
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* we were given. |
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*/ |
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elog(INFO, "rsinfo_ncols = %d, ncols = %d", rsinfo_ncols, ncols); |
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/* OK, use it */ |
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attinmeta = TupleDescGetAttInMetadata(tupdesc); |
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/* Now go to work */ |
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rsinfo->returnMode = SFRM_Materialize; |
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per_query_ctx = fcinfo->flinfo->fn_mcxt; |
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oldcontext = MemoryContextSwitchTo(per_query_ctx); |
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/* initialize our tuplestore */ |
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tupstore = tuplestore_begin_heap(true, false, SortMem); |
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values = (char **) palloc(ncols * sizeof(char *)); |
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for (i = 0; i < nrows; i++) |
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{ |
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for (j = 0; j < ncols; j++) |
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{ |
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values[j] = DatumGetCString( "foo" ); |
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} |
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/* construct the tuple */ |
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tuple = BuildTupleFromCStrings(attinmeta, values); |
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prop = _textout(PG_GETARG_TEXT_P(0)); |
/* now store it */ |
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elog(INFO, "pgswish: swextprop(%s)", prop); |
tuplestore_puttuple(tupstore, tuple); |
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} |
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val = prop2int( sw_res, prop ); |
tuplestore_donestoring(tupstore); |
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error_or_abort( swish_handle ); |
rsinfo->setResult = tupstore; |
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elog(INFO, "pgswish: swextprop(%s) = '%s'", prop, val ); |
/* |
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* SFRM_Materialize mode expects us to return a NULL Datum. The actual |
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* tuples are in our tuplestore and passed back through |
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* rsinfo->setResult. rsinfo->setDesc is set to the tuple description |
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* that we actually used to build our tuples with, so the caller can |
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* verify we did what it was expecting. |
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*/ |
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rsinfo->setDesc = tupdesc; |
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MemoryContextSwitchTo(oldcontext); |
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PG_FREE_IF_COPY(prop, 0); |
return (Datum) 0; |
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PG_RETURN_TEXT_P( _textin(val) ); |
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} |
} |
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/* make text var prom property */ |
/* make text var prom property */ |
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char *prop2text(SW_RESULT sw_res, char *propname) { |
char *prop2text(SW_RESULT sw_res, char *propname) { |
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char *val; |
char *val; |