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Feature: lazy initialize orca optimizer #191

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merged 1 commit into from
Sep 20, 2023
Merged

Feature: lazy initialize orca optimizer #191

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18 changes: 18 additions & 0 deletions src/backend/optimizer/plan/planner.c
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Original file line number Diff line number Diff line change
Expand Up @@ -86,11 +86,15 @@
#include "storage/lmgr.h"
#include "utils/guc.h"

#ifdef USE_ORCA
extern void InitGPOPT();
#endif

/* GUC parameters */
double cursor_tuple_fraction = DEFAULT_CURSOR_TUPLE_FRACTION;
int force_parallel_mode = FORCE_PARALLEL_OFF;
bool parallel_leader_participation = false;
bool optimizer_init = false;

/* Hook for plugins to get control in planner() */
planner_hook_type planner_hook = NULL;
Expand Down Expand Up @@ -366,6 +370,20 @@ standard_planner(Query *parse, const char *query_string, int cursorOptions,
(cursorOptions & CURSOR_OPT_SKIP_FOREIGN_PARTITIONS) == 0 &&
(cursorOptions & CURSOR_OPT_PARALLEL_RETRIEVE) == 0)
{

#ifdef USE_ORCA
if (!optimizer_init) {
/* Initialize GPOPT */
OptimizerMemoryContext = AllocSetContextCreate(TopMemoryContext,
"GPORCA Top-level Memory Context",
ALLOCSET_DEFAULT_MINSIZE,
ALLOCSET_DEFAULT_INITSIZE,
ALLOCSET_DEFAULT_MAXSIZE);
InitGPOPT();
optimizer_init = true;
}
#endif

if (gp_log_optimization_time)
INSTR_TIME_SET_CURRENT(starttime);

Expand Down
25 changes: 25 additions & 0 deletions src/backend/utils/adt/gp_optimizer_functions.c
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Expand Up @@ -15,6 +15,11 @@

#include "funcapi.h"
#include "utils/builtins.h"
#include "optimizer/planner.h"

#ifdef USE_ORCA
extern void InitGPOPT();
#endif

extern Datum EnableXform(PG_FUNCTION_ARGS);

Expand All @@ -25,6 +30,16 @@ Datum
enable_xform(PG_FUNCTION_ARGS)
{
#ifdef USE_ORCA
if (!optimizer_init) {
/* Initialize GPOPT */
OptimizerMemoryContext = AllocSetContextCreate(TopMemoryContext,
"GPORCA Top-level Memory Context",
ALLOCSET_DEFAULT_MINSIZE,
ALLOCSET_DEFAULT_INITSIZE,
ALLOCSET_DEFAULT_MAXSIZE);
InitGPOPT();
optimizer_init = true;
}
return EnableXform(fcinfo);
#else
return CStringGetTextDatum("Server has been compiled without ORCA");
Expand All @@ -40,6 +55,16 @@ Datum
disable_xform(PG_FUNCTION_ARGS)
{
#ifdef USE_ORCA
if (!optimizer_init) {
/* Initialize GPOPT */
OptimizerMemoryContext = AllocSetContextCreate(TopMemoryContext,
"GPORCA Top-level Memory Context",
ALLOCSET_DEFAULT_MINSIZE,
ALLOCSET_DEFAULT_INITSIZE,
ALLOCSET_DEFAULT_MAXSIZE);
InitGPOPT();
optimizer_init = true;
}
return DisableXform(fcinfo);
#else
return CStringGetTextDatum("Server has been compiled without ORCA");
Expand Down
12 changes: 1 addition & 11 deletions src/backend/utils/init/postinit.c
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Expand Up @@ -676,17 +676,7 @@ InitPostgres(const char *in_dbname, Oid dboid, const char *username,
/* Initialize memory protection */
GPMemoryProtect_Init();

#ifdef USE_ORCA
/* Initialize GPOPT */
OptimizerMemoryContext = AllocSetContextCreate(TopMemoryContext,
"GPORCA Top-level Memory Context",
ALLOCSET_DEFAULT_MINSIZE,
ALLOCSET_DEFAULT_INITSIZE,
ALLOCSET_DEFAULT_MAXSIZE);

if (!bootstrap && Gp_role == GP_ROLE_DISPATCH)
InitGPOPT();
#endif


/*
* Initialize my entry in the shared-invalidation manager's array of
Expand Down
2 changes: 2 additions & 0 deletions src/include/optimizer/planner.h
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Expand Up @@ -60,4 +60,6 @@ extern Path *get_cheapest_fractional_path(RelOptInfo *rel,

extern Expr *preprocess_phv_expression(PlannerInfo *root, Expr *expr);

extern bool optimizer_init;

#endif /* PLANNER_H */