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由 xiong-gang 提交于
When alter table add a column to AOCS table, the storage setting (compresstype, compresslevel and blocksize) of the new column can be specified in the ENCODING clause; it inherits the setting from the table if ENCODING is not specified; it will use the value from GUC 'gp_default_storage_options' when the table dosen't have the compression configuration.
9a574915