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103 Commits (36af02649e2cc3079c40ec6609a237b4bfa7b28c)

Author SHA1 Message Date
Metin Doslu b8a9e7c1bf Add support for UPDATE/DELETE with subqueries 2017-08-08 21:35:08 +03:00
Marco Slot da47a03b18 Move INSERT ... SELECT planning logic into one place 2017-06-29 15:03:14 +02:00
Marco Slot 2f8ac82660 Execute INSERT..SELECT via coordinator if it cannot be pushed down 
Add a second implementation of INSERT INTO distributed_table SELECT ... that is used if
the query cannot be pushed down. The basic idea is to execute the SELECT query separately
and pass the results into the distributed table using a CopyDestReceiver, which is also
used for COPY and create_distributed_table. When planning the SELECT, we go through
planner hooks again, which means the SELECT can also be a distributed query.

EXPLAIN is supported, but EXPLAIN ANALYZE is not because preventing double execution was
a lot more complicated in this case.
 2017-06-22 15:46:30 +02:00