pgis_asmvt_combinefn()

Datum pgis_asmvt_combinefn

(

PG_FUNCTION_ARGS

)

Definition at line 261 of file lwgeom_out_mvt.c.

{
#ifndef HAVE_LIBPROTOBUF
        elog(ERROR, "ST_AsMVT: Compiled without protobuf-c support");
        PG_RETURN_NULL();
#else
        MemoryContext aggcontext, oldcontext;
        mvt_agg_context *ctx, *ctx1, *ctx2;
        elog(DEBUG2, "%s called", __func__);
        if (!AggCheckCallContext(fcinfo, &aggcontext))
                elog(ERROR, "%s called in non-aggregate context", __func__);
 
        ctx1 = (mvt_agg_context*)PG_GETARG_POINTER(0);
        ctx2 = (mvt_agg_context*)PG_GETARG_POINTER(1);
        oldcontext = MemoryContextSwitchTo(aggcontext);
        ctx = mvt_ctx_combine(ctx1, ctx2);
        MemoryContextSwitchTo(oldcontext);
        PG_RETURN_POINTER(ctx);
#endif
}

References mvt_ctx_combine().

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