内部函数

• 选择率计算函数

• 统计信息收集函数

  array_typanalyze	range_typanalyze	ts_typanalyze
  local_rto_stat

• 排序内部功能函数

  bpchar_sortsupport

  bytea_sortsupport

  date_sortsupport

  numeric_sortsupport

  timestamp_sortsupport

• 全文检索内部功能函数

  dispell_init	dispell_lexize	dsimple_init	dsimple_lexize	dsnowball_init	dsnowball_lexize	dsynonym_init
  dsynonym_lexize	gtsquery_compress	gtsquery_consistent	gtsquery_decompress	gtsquery_penalty	gtsquery_picksplit	gtsquery_same
  gtsquery_union	ngram_end	ngram_lextype	ngram_start	pound_end	pound_lextype	pound_start
  prsd_end	prsd_headline	prsd_lextype	prsd_start	thesaurus_init	thesaurus_lexize	zhprs_end
  zhprs_getlexeme	zhprs_lextype	zhprs_start	-	-	-	-

• 内部类型处理函数

• 哈希内部功能函数

  hashbeginscan	hashbuild	hashbuildempty	hashbulkdelete	hashcostestimate	hashendscan	hashgetbitmap
  hashgettuple	hashinsert	hashmarkpos	hashmerge	hashrescan	hashrestrpos	hashvacuumcleanup
  hashvarlena	-	-	-	-	-	-

• Btree索引内部功能函数

  cbtreebuild	cbtreecanreturn	cbtreecostestimate	cbtreegetbitmap	cbtreegettuple	btbeginscan	btbuild
  btbuildempty	btbulkdelete	btcanreturn	btcostestimate	btendscan	btfloat4sortsupport	btfloat8sortsupport
  btgetbitmap	btgettuple	btinsert	btint2sortsupport	btint4sortsupport	btint8sortsupport	btmarkpos
  	btnamesortsupport	btrescan	btrestrpos	bttextsortsupport	btvacuumcleanup	cbtreeoptions

• GiST索引内部功能函数

  gist_box_compress	gist_box_consistent	gist_box_decompress	gist_box_penalty	gist_box_picksplit	gist_box_same	gist_box_union
  gist_circle_compress	gist_circle_consistent	gist_point_compress	gist_point_consistent	gist_point_distance	gist_poly_compress	gist_poly_consistent
  gistbeginscan	gistbuild	gistbuildempty	gistbulkdelete	gistcostestimate	gistendscan	gistgetbitmap
  gistinsert	gistmarkpos	gistmerge	gistrescan	gistrestrpos	gistvacuumcleanup	range_gist_compress
  range_gist_decompress	range_gist_penalty	range_gist_picksplit	range_gist_same	range_gist_union	spg_kd_choose	spg_kd_config
  spg_kd_picksplit	spg_quad_choose	spg_quad_config	spg_quad_inner_consistent	spg_quad_leaf_consistent	spg_quad_picksplit	spg_text_choose
  spg_text_inner_consistent	spg_text_leaf_consistent	spg_text_picksplit	spgbeginscan	spgbuild	spgbuildempty	spgbulkdelete
  spgcostestimate	spgendscan	spggetbitmap	spggettuple	spginsert	spgmarkpos	spgmerge
  spgrestrpos	spgvacuumcleanup	-	-	-	-	-

• Gin索引内部功能函数

• Psort索引内部函数

  psortbuild

  psortcanreturn

  psortcostestimate

  psortgetbitmap

  psortgettuple

• plpgsql内部函数

  plpgsql_inline_handler

• 外表相关内部函数

  dist_fdw_handler

  roach_handler

  streaming_fdw_handler

  dist_fdw_validator

  file_fdw_handler

  file_fdw_validator

  log_fdw_handler

• 主DN远程读取备DN数据页辅助函数

  gs_read_block_from_remote

• 账本数据库函数

  get_dn_hist_relhash

• AI特性函数

  create_snapshot	create_snapshot_internal	prepare_snapshot_internal	prepare_snapshot	manage_snapshot_internal	archive_snapshot	publish_snapshot
  purge_snapshot_internal	purge_snapshot	sample_snapshot

• 其他函数

  to_tsvector_for_batch	value_of_percentile	session_context	bind_variable	job_update	job_cancel	job_finish
  similar_escape	table_skewness （不可用）	timetz_text	time_text	reltime_text	abstime_text	_pg_keysequal
  analyze_query (不可用）	analyze_workload （不可用）	ssign_table_type	gs_comm_proxy_thread_status	gs_txid_oldestxmin	pg_cancel_session	pg_stat_segment_space_info
  remote_segment_space_info	set_cost_params	set_weight_params	start_collect_workload	tdigest_in	tdigest_merge	tdigest_merge_to_one
  tdigest_mergep		pg_get_delta_info