Erik Nordström ef744916a8 Migrate table data when creating a hypertable
Tables can now hold existing data, which is optionally migrated from
the main table to chunks when create_hypertable() is called.

The data migration is similar to the COPY path, with the single
difference that the inserted/copied tuples come from an existing table
instead of being read from a file. After the data has been migrated,
the main table is truncated.

One potential downside of this approach is that all of this happens in
a single transaction, which means that the table is blocked while
migration is ongoing, preventing inserts by other transactions.
2018-02-15 23:30:54 +01:00
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2017-11-27 16:28:51 -05:00
2017-11-10 09:44:20 +01:00