ST_AsGeoJsonRow()

Datum ST_AsGeoJsonRow

(

PG_FUNCTION_ARGS

)

Definition at line 85 of file lwgeom_out_geojson.c.

{
        Datum           array = PG_GETARG_DATUM(0);
        text        *geom_column_text = PG_GETARG_TEXT_P(1);
        int32       maxdecimaldigits = PG_GETARG_INT32(2);
        bool            do_pretty = PG_GETARG_BOOL(3);
        text        *id_column_text = PG_GETARG_TEXT_P(4);
        StringInfo      result;
        char        *geom_column = text_to_cstring(geom_column_text);
        char        *id_column = text_to_cstring(id_column_text);
        Oid geom_oid = InvalidOid;
        Oid geog_oid = InvalidOid;
 
        /* We need to initialize the internal cache to access it later via postgis_oid() */
        postgis_initialize_cache();
        geom_oid = postgis_oid(GEOMETRYOID);
        geog_oid = postgis_oid(GEOGRAPHYOID);
 
        if (strlen(geom_column) == 0)
                geom_column = NULL;
        if (strlen(id_column) == 0)
                id_column = NULL;
 
        result = makeStringInfo();
 
        composite_to_geojson(fcinfo, array, geom_column, id_column, maxdecimaldigits, result, do_pretty, geom_oid, geog_oid);
 
        PG_RETURN_TEXT_P(cstring_to_text_with_len(result->data, result->len));
}

References composite_to_geojson(), and result.

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