extracting meta info from a table psql using information_schema

Question

How do I extract following meta information from a psql table. column_name, data_type, char_max_length,numeric_precision,constraint_type, constraint_reference, check_clause .In short the information that we have got by this query "\\d table_name".

Answer 1

从-E标志开始psql ，并记下发出\\d table_name时生成的查询-您需要重现许多或大多数这些查询才能获取您要的所有元数据。