static void fileGetForeignRelSize()

in log_fdw.c [106:169]

• 53 lines of code
• 1 McCabe index (conditional complexity)

static void fileGetForeignRelSize(PlannerInfo *root,
								  RelOptInfo *baserel,
								  Oid foreigntableid);
static void fileGetForeignPaths(PlannerInfo *root,
								RelOptInfo *baserel,
								Oid foreigntableid);
static ForeignScan *fileGetForeignPlan(PlannerInfo *root,
									   RelOptInfo *baserel,
									   Oid foreigntableid,
									   ForeignPath *best_path,
									   List *tlist,
									   List *scan_clauses,
									   Plan *outer_plan);
static void fileExplainForeignScan(ForeignScanState *node, ExplainState *es);
static void fileBeginForeignScan(ForeignScanState *node, int eflags);
static TupleTableSlot *fileIterateForeignScan(ForeignScanState *node);
static void fileReScanForeignScan(ForeignScanState *node);
static void fileEndForeignScan(ForeignScanState *node);
static bool fileAnalyzeForeignTable(Relation relation,
									AcquireSampleRowsFunc *func,
									BlockNumber *totalpages);
static bool fileIsForeignScanParallelSafe(PlannerInfo *root, RelOptInfo *rel,
										  RangeTblEntry *rte);

/*
 * Helper functions
 */
static bool is_valid_option(const char *option, Oid context);
static void fileGetOptions(Oid foreigntableid,
						   char **filename, List **other_options);
static bool check_selective_binary_conversion(RelOptInfo *baserel,
											  Oid foreigntableid,
											  List **columns);
static void estimate_size(PlannerInfo *root, RelOptInfo *baserel,
						  FileFdwPlanState *fdw_private);
static void estimate_costs(PlannerInfo *root, RelOptInfo *baserel,
						   FileFdwPlanState *fdw_private,
						   Cost *startup_cost, Cost *total_cost);
static int	file_acquire_sample_rows(Relation onerel, int elevel,
									 HeapTuple *rows, int targrows,
									 double *totalrows, double *totaldeadrows);

/*
 * Foreign-data wrapper handler function: return a struct with pointers
 * to my callback routines.
 */
Datum
log_fdw_handler(PG_FUNCTION_ARGS)
{
	FdwRoutine *fdwroutine = makeNode(FdwRoutine);

	fdwroutine->GetForeignRelSize = fileGetForeignRelSize;
	fdwroutine->GetForeignPaths = fileGetForeignPaths;
	fdwroutine->GetForeignPlan = fileGetForeignPlan;
	fdwroutine->ExplainForeignScan = fileExplainForeignScan;
	fdwroutine->BeginForeignScan = fileBeginForeignScan;
	fdwroutine->IterateForeignScan = fileIterateForeignScan;
	fdwroutine->ReScanForeignScan = fileReScanForeignScan;
	fdwroutine->EndForeignScan = fileEndForeignScan;
	fdwroutine->AnalyzeForeignTable = fileAnalyzeForeignTable;
	fdwroutine->IsForeignScanParallelSafe = fileIsForeignScanParallelSafe;

	PG_RETURN_POINTER(fdwroutine);
}