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7 Commits (5c3692de4d2a14e01e70d668902fec834b576a39)

Author SHA1 Message Date
Onder Kalaci fc9a23792c COPY uses adaptive connection management on local node 
With #4338, the executor is smart enough to failover to
local node if there is not enough space in max_connections
for remote connections.

For COPY, the logic is different. With #4034, we made COPY
work with the adaptive connection management slightly
differently. The cause of the difference is that COPY doesn't
know which placements are going to be accessed hence requires
to get connections up-front.

Similarly, COPY decides to use local execution up-front.

With this commit, we change the logic for COPY on local nodes:

Try to reserve a connection to local host. This logic follows
the same logic (e.g., citus.local_shared_pool_size) as the
executor because COPY also relies on TryToIncrementSharedConnectionCounter().
If reservation to local node fails, switch to local execution
Apart from this, if local execution is disabled, we follow the
exact same logic for multi-node Citus. It means that if we are
out of the connection, we'd give an error.
 2021-02-04 09:45:07 +01:00
Philip Dubé 261a9de42d Fix typos: 
VAR_SET_VALUE_KIND -> VAR_SET_VALUE kind
beginnig -> beginning
plannig -> planning
the the -> the
er then -> er than
 2019-11-25 23:24:13 +00:00
velioglu 698d585fb5 Remove broadcast join logic 
After this change all the logic related to shard data fetch logic
will be removed. Planner won't plan any ShardFetchTask anymore.
Shard fetch related steps in real time executor and task-tracker
executor have been removed.
 2018-03-30 11:45:19 +03:00
Onder Kalaci 4d4648aabd Change single shard mx test tables to reference tables 2018-02-26 13:28:24 +02:00
Jason Petersen d6cccee5bc
Remove ALTER SEQUENCE from parallel groups 
Removing these has no side effect, and in the (current) PostgreSQL 10,
an ERROR is printed during concurrent sequence modification.
 2017-05-16 11:05:34 -06:00
Marco Slot f838c83809 Remove redundant pg_dist_jobid_seq restarts in tests 2017-04-18 11:42:32 +02:00
Eren Basak 88e9a429e1 Add Regression Tests For Querying MX Tables from Workers 2017-01-24 10:36:59 +03:00