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They are the same thing in a default installation. pg_catalog.text is the schema-qualified version of the type name text. The search_path always contains pg_catalog automatically. Per documentation: In addition to public and user-created schemas, each database contains a pg_catalog schema, which contains the system tables and all the built-in data ...


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Your question implies that you're using a Kimball Star Schema approach. Option 1 implies a star schema while option 2 implies a more snowflaked design. Kimball argues against snowflaking your design. Therefore, go with option one. It will be easier for your report writers long term and newer in memory database technologies will take advantage of it. ...


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Datapump is one answer. Look at http://docs.oracle.com/cd/E11882_01/server.112/e22490/dp_export.htm#i1007524 - specifically "Transportable Table mode". Moves the metadata, but not the data. You can choose which schemas to include with the SCHEMAS switch, along with the INCLUDE/EXCLUDE parameters.


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The filtered replication is not something that is currently implemented in MongoDB out of the box. That said, the replication in MongoDB is based on a special collection named "oplog", that you can listen to and do the filter yourself, and in this case implement the filter you want to push data into another cluster. (This will be viewed as 2 different ...


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MongoDB at least to current version 2.6+ for sure does not support that as build-in functionality. I guess because a replica set using selective replication won't be consistent. There is a feature called filtered replication in Couch but never tried it: http://wiki.apache.org/couchdb/Replication#Filtered_Replication



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