31.16. element_types

蓖商 element_types 寙劆昄䂇噄䘹䔇昄扞䌂傋䔇柟誄严㔗 婘婔婻臘庖枕嘘庘昄埗昄潡蔙庘昄誫啂唚垔幬婺婔婻昄䂇䌂傋䔇施唍 凹庫䔇媇敇昇嚟蓖商婘庖枕data_type 麯埻寙劆 ARRAY㔗 襕诙埡昄䂇噄䘹䌂傋䔇媇敇嘹埇傖儖凹庫䔇蓖商启認婻蓖商誂毖㔗 懫套襕䫘昄扞䌂傋启昄䂇噄䘹䌂傋滆䴺臘䔇庖枕套悩埇脘嘹埇傖䫘

SELECT c.column_name, c.data_type, e.data_type AS element_type
FROM information_schema.columns c LEFT JOIN information_schema.element_types e
     ON ((c.table_catalog, c.table_schema, c.table_name, 'TABLE', c.dtd_identifier)
       = (e.object_catalog, e.object_schema, e.object_name, e.object_type, e.array_type_identifier))
WHERE c.table_schema = '...' AND c.table_name = '...'
ORDER BY c.ordinal_position;

認婻蓖商埻寙劆嘷嬉䫘潙橬溄鍊螪閞䔇凹茇幘儌滇傡滇欔橬蔙潡蔙橬底 溄鍊㔗