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我正在嘗試將文件從S3複製到Redshift。以我的方式站在我的無知如何使日期(以下粗體)始終是今天的日期。將日期動態插入S3的Redshift複製命令的文件名中
COPY cid_localytics_export
FROM 's3://exports.localytics.t-z/<redacted>/**2014/11/19**/eb0ecf515724b3ef5a6d8cb-a8a0fa68-3551-11e4-4b45-00a426b17dd8/00.log.gz'
CREDENTIALS 'aws_access_key_id=<redacted>;aws_secret_access_key=<redacted>'
JSON 's3://exports.localytics.t-z/<redacted>/redshift_example.json'
GZIP
TRUNCATECOLUMNS;
當我嘗試以下我得到一個語法錯誤。任何想法或建議將不勝感激。
COPY cid_localytics_export_test
FROM (select ''''||'s3://exports.localytics.t-z/<redacted>/'||(select ltrim(rtrim(replace(replace(cast(date_trunc('day', now()) - interval '1 day' as varchar),'-','/'),' 00:00:00+00',''))))||'/eb0ecf515724b3ef5a6d8cb-a8a0fa68-3551-11e4-4b45-00a426b17dd8/00.log.gz'||'''')
CREDENTIALS 'aws_access_key_id=<redacted>;aws_secret_access_key=<redacted>'
JSON 's3://exports.localytics.t-z/whitepages/redshift_example.json'
GZIP
TRUNCATECOLUMNS;