Teradata到Postgres:集合表的SQL转换,没有回退,没有前日志,没有后日志?

您可以删除所有表级选项:

CREATE OR REPLACE SET TABLE SAMPLE -- There'n no OR REPLACE in TD and PG
  ,NO FALLBACK -- keeps a copy of every row, doesn't exist in PG -> remove it
  ,NO BEFORE JOURNAL -- Journalling options
  ,NO AFTER JOURNAL  -- -> remove
  ,CHECKSUM = DEFAULT -- checksumming datablocks to prevent writing/reading bad data -> remove
  ,DEFAULT MERGEBLOCKRATIO -- Combine smaller data blocks during Insert/Update/Delete -> remove
(ACCT_ID VARCHAR(60) CHARACTER SET LATIN NOT CASESPECIFIC NOT NULL
,EMP_SAL CHAR(1) CHARACTER SET LATIN NOT CASESPECIFIC NOT NULL)); 

CHARACTER SET LATIN :afaik在PG中没有在列级别指定字符集的选项,只能在数据库级别指定。

NOT CASESPECIFIC :为CHAR列指定区分大小写在PG中不存在(它始终区分大小写),只有 citext module 。