func: void pgstat_init_function_usage(FunctionCallInfoData *fcinfo,PgStat_FunctionCallUsage *fcu) PgStat_BackendFunctionEntry * htabent ; bool found ; if ( pgstat_track_functions <= ( fcinfo -> flinfo -> fn_stats ) )  if ( ! pgStatFunctions )  HASHCTL hash_ctl ; hash_ctl . keysize = sizeof ( Oid ); hash_ctl . entrysize = sizeof ( PgStat_BackendFunctionEntry ); hash_ctl . hash = oid_hash; pgStatFunctions = hash_create ( "Function stat entries" , 512 , & hash_ctl , 0x020 | 0x010 ); htabent = ( hash_search ( pgStatFunctions , ( & fcinfo -> flinfo -> fn_oid ) , HASH_ENTER , & found ) ); if ( ! found )  void * _vstart = ( void * ) ( & htabent -> f_counts ) ; int _val = 0 ; Size _len = sizeof ( PgStat_FunctionCounts ) ; if ( ( ( ( intptr_t ) _vstart ) & sizeof ( long ) - 1 ) == 0 && ( _len & sizeof ( long ) - 1 ) == 0 && _val == 0 && _len <= 1024 && 1024 != 0 )  memset ( _vstart , _val , _len ); while ( 0 )  