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1377 Commits (4230b96247ea18df0bbbd7b4a2e882c02eeef009)

Author SHA1 Message Date
Onder Kalaci 90943a6ce6 Do not include coordinator shards when round-robin is selected 
When the user picks "round-robin" policy, the aim is that the load
is distributed across nodes. However, for reference tables on the
coordinator, since local execution kicks in immediately, round-robin
is ignored.

With this change, we're excluding the placement on the coordinator.
Although the approach seems a little bit invasive because of
modifications in the placement list, that sounds acceptable.

We could have done this in some other ways such as:

1) Add a field to "Task->roundRobinPlacement" (or such), which is
updated as the first element after RoundRobinPolicy is applied.
During the execution, if that placement is local to the coordinator,
skip it and try the other remote placements.

2) On TaskAccessesLocalNode()@local_execution.c, check
task_assignment_policy, if round-robin selected and there is local
placement on the coordinator, skip it. However, task assignment is done
on planning, but this decision is happening on the execution, which
could create weird edge cases.
 2019-11-15 06:03:32 -08:00
Hadi Moshayedi 15af1637aa Replicate reference tables to coordinator. 2019-11-15 05:50:19 -08:00
Hadi Moshayedi cb011bb30f Propagate isactive to metadata nodes. 2019-11-15 05:48:42 -08:00
SaitTalhaNisanci b9b7fd7660
add IsLoggableLevel utility function (#3149) 
* add IsLoggableLevel utility function

* add function comment for IsLoggableLevel

* put ApplyLogRedaction to logutils
 2019-11-15 14:59:13 +03:00
Jelte Fennema 1b2c438e69
Rename variables to not shadow globals in RHEL6 (#3194) 
Fixes #2839
 2019-11-15 12:12:24 +01:00
Jelte Fennema a8bd2d58f5
Update SQL definitions to prepare for drain node functionality (#3179) 2019-11-15 10:11:56 +01:00
Jelte Fennema 4b9b4b0995
Don't warn for declaration-after-statement since we only support GNU99 (#3132) 
This change was actually already intended in #3124. However, the
postgres Makefile manually enables this warning too. This way we undo
that.

To confirm that it works two functions were changed to make use of not
having the warning anymore.
 2019-11-15 09:46:06 +01:00
Philip Dubé 495c0f5117 Phase 1 implementation of custom aggregates 
Phase 1 seeks to implement minimal infrastructure, so does not include:
	- dynamic generation of support aggregates to handle multiple arguments
	- configuration methods to direct aggregation strategy,
		or mark an aggregate's serialize/deserialize as safe to operate across nodes

Aggregates can be distributed when:
	- they have a single argument
	- they have a combinefunc
	- their transition type is not a pseudotype
 2019-11-14 19:01:24 +00:00
Philip Dubé edc7a2ee38 Improve RECORD support 2019-11-14 18:32:22 +00:00
Philip Dubé eb35743c3f Remove citus.worker_list_file & master_initialize_node_metadata 2019-11-13 00:49:58 +00:00
Philip Dubé 48552bfffe Call DestReceiver rDestroy before it goes out of scope 
CitusCopyDestReceiverDestroy: call hash_destroy on shardStateHash & connectionStateHash
 2019-11-12 15:03:07 +00:00
Jelte Fennema adc6ca6100
Make simple in queries on unique columns work with repartion join (#3171) 
This is necassery to support Q20 of the CHbenCHmark: #2582.

To summarize the fix: The subquery is converted into an INNER JOIN on a
table. This fixes the issue, since an INNER JOIN on a table is already
supported by the repartion planner.

The way this replacement is happening.:
1. Postgres replaces `col in (subquery)` with a SEMI JOIN (subquery) on col = subquery_result
2. If this subquery is simple enough Postgres will replace it with a
   regular read from a table
3. If the subquery returns unique results (e.g. a primary key) Postgres
   will convert the SEMI JOIN into an INNER JOIN during the planning. It
   will not change this in the rewritten query though.
4. We check if Postgres sends us any SEMI JOINs during its join order
   planning, if it doesn't we replace all SEMI JOINs in the rewritten
   query with INNER JOIN (which we already support).
 2019-11-11 13:44:28 +01:00
SaitTalhaNisanci 57380fd668
remove duplicated method in multi_logical_optimizer (#3166) 2019-11-11 13:51:21 +03:00
Philip Dubé ad86c1b866 AcquireDistributedLockOnRelations: escape relation names 2019-11-08 21:23:01 +00:00
Philip Dubé e8ecbbfcb3 Escape transaction names 2019-11-08 21:23:01 +00:00
Jelte Fennema 9fb897a074
Fix queries with repartition joins and group by unique column (#3157) 
Postgres doesn't require you to add all columns that are in the target list to
the GROUP BY when you group by a unique column (or columns). It even actively
removes these group by clauses when you do.

This is normally fine, but for repartition joins it is not. The reason for this
is that the temporary tables don't have these primary key columns. So when the
worker executes the query it will complain that it is missing columns in the
group by.

This PR fixes that by adding an ANY_VALUE aggregate around each variable in
the target list that does is not contained in the group by or in an aggregate.
This is done only for repartition joins.

The ANY_VALUE aggregate chooses the value from an undefined row in the
group.
 2019-11-08 15:36:18 +01:00
SaitTalhaNisanci 02b359623f
remove duplicate code in citus_dist_stat_activity (#3165) 2019-11-08 15:41:32 +03:00
Önder Kalacı 0b3d4e55d9
Local execution should not change hasReturning for distributed tables (#3160) 
It looks like the logic to prevent RETURNING in reference tables to
have duplicate entries that comes from local and remote executions
leads to missing some tuples for distributed tables.

With this PR, we're ensuring to kick in the logic for reference tables
only.
 2019-11-08 12:49:56 +01:00
Philip Dubé 72c3d64ead Rename OpenConnectionsToAllNodes to OpenConnectionsToAllWorkerNodes 2019-11-07 17:50:22 +00:00
Philip Dubé 2fc45e5897 create_distributed_function: accept aggregates 
Adds support for OCLASS_PROC to worker_create_or_replace_object
 2019-11-06 18:23:37 +00:00
Hadi Moshayedi e00d1546f3 Don't maintain replicationfactor of reference tables 2019-11-05 07:23:14 -08:00
Onder Kalaci 471703bfaf DEBUG only when the function is distributed 
Otherwise, we're seeing this message way to often.
 2019-11-05 15:08:35 +00:00
Önder Kalacı 960cd02c67
Remove real time router executors (#3142) 
* Remove unused executor codes

All of the codes of real-time executor. Some functions
in router executor still remains there because there
are common functions. We'll move them to accurate places
in the follow-up commits.

* Move GUCs to transaction mngnt and remove unused struct

* Update test output

* Get rid of references of real-time executor from code

* Warn if real-time executor is picked

* Remove lots of unused connection codes

* Removed unused code for connection restrictions

Real-time and router executors cannot handle re-using of the existing
connections within a transaction block.

Adaptive executor and COPY can re-use the connections. So, there is no
reason to keep the code around for applying the restrictions in the
placement connection logic.
 2019-11-05 12:48:10 +01:00
Jelte Fennema f0c35ad134 Include fmgr.h, don't duplicate FunctionCallInfo typedef 2019-11-04 17:10:33 +00:00
SaitTalhaNisanci 7c410e3cd7
pass CitusCustomState directly to adaptive executor (#3151) 2019-11-01 19:57:32 +03:00
Önder Kalacı ffd89e4e01
Include all relevant relations in the ExtractRangeTableRelationWalker (#3135) 
We've changed the logic for pulling RTE_RELATIONs in #3109 and
non-colocated subquery joins and partitioned tables.
@onurctirtir found this steps where I traced back and found the issues.

While looking into it in more detail, we decided to expand the list in a
way that the callers get all the relevant RTE_RELATIONs RELKIND_RELATION,
RELKIND_PARTITIONED_TABLE, RELKIND_FOREIGN_TABLE and RELKIND_MATVIEW.
These are all relation kinds that Citus planner is aware of.
 2019-11-01 16:06:58 +01:00
Onur TIRTIR d3f68bf44f
Fix view is not distributed error when view is used in modify statements (#3104) 2019-11-01 16:34:01 +03:00
SaitTalhaNisanci c7ceca3216
update outdated comment in JobExecutorType (#3148) 2019-11-01 11:36:56 +03:00
SaitTalhaNisanci 70e46703aa
Fix debug1 message in JobExecutorType (#3147) 
When citus.enable_repartition_joins guc is set to on, and we have
adaptive executor, there was a typo in the debug message, which was
saying realtime executor no adaptive executor.
 2019-11-01 11:14:19 +03:00
Marco Slot 51c64c70c9 Do not try to sync metadata on standby coordinator 2019-10-30 05:15:45 +01:00
SaitTalhaNisanci dadbe86af1
refactor some of hard coded values in citus gucs (#3137) 
* refactor some of hard coded values in citus gucs

* rename GUC_ALLOW_ALL to GUC_STANDARD
 2019-10-30 10:35:39 +03:00
Marco Slot 067657af26 Disallow distributed functions with distribution arguments unless replication_model is streaming 2019-10-26 23:57:59 +02:00
SaitTalhaNisanci 29d45bd1b9
Do not assign InvalidOid for local execution while extracting parameters (#3131) 
* do not assign InvalidOid for local execution while extracting parameters

* rename functions

* rename parameter and replace function
 2019-10-28 14:28:22 +03:00
Önder Kalacı dceaddbe4d
Remove real-time/router executors (step 1) (#3125) 
See #3125 for details on each item.

* Remove real-time/router executor tests-1

These are the ones which doesn't have '_%d' in the test
output files.

* Remove real-time/router executor tests-2

These are the ones which has in the test
output files.

* Move the tests outputs to correct place

* Make sure that single shard commits use 2PC on adaptive executor

It looks like we've messed the tests in #2891. Fixing back.

* Use adaptive executor for all router queries

This becomes important because when task-tracker is picked, we
used to pick router executor, which doesn't make sense.

* Remove explicit references to real-time/router executors in the tests

* JobExecutorType never picks real-time/router executors

* Make sure to go incremental in test output numbers

* Even users cannot pick real-time anymore

* Do not use real-time/router custom scans

* Get rid of unnecessary normalizations

* Reflect unneeded normalizations

* Get rid of unnecessary test output file
 2019-10-25 10:54:54 +02:00
Marco Slot a1162b2023 Rename 9.1 upgrade script to upgrade from 9.0-2 2019-10-23 00:08:17 +02:00
Marco Slot 04040e0a37 Revoke usage from the citus schema 2019-10-23 00:08:17 +02:00
Jelte Fennema a5010e5b17
Add extra foreach convenience macros (#3117) 
This completely hides `ListCell` to the user of the loop

Example usage:
```c
WorkerNode *workerNode = NULL;

foreach_ptr(workerNode, workerNodeList) {
	// Do stuff with workerNode
}
```

Instead of:
```c
ListCell *workerNodeCell = NULL;

foreach(cell, workerNodeList) {
    WorkerNode *workerNode = lfirst(workerNodeCell);
	// Do stuff with workerNode
}
```
 2019-10-23 16:49:12 +02:00
Philip Dubé b2f084d7f5 UnsetMetadataSyncedForAll: use CatalogTupleUpdateWithInfo 2019-10-23 00:45:11 +00:00
Onder Kalaci a208f8b151 Fix memory leak on ReceiveResults 
It turns out that TupleDescGetAttInMetadata() allocates quite a lot
of memory. And, if the target list is long and there are too many rows
returning, the leak becomes appereant.

You can reproduce the issue wout the fix with the following commands:

```SQL

CREATE TABLE users_table (user_id int, time timestamp, value_1 int, value_2 int, value_3 float, value_4 bigint);
SELECT create_distributed_table('users_table', 'user_id');

insert into users_table SELECT i, now(), i, i, i, i FROM generate_series(0,99999)i;

-- load faster

-- 200,000
INSERT INTO users_table SELECT * FROM users_table;

-- 400,000
INSERT INTO users_table SELECT * FROM users_table;

-- 800,000
INSERT INTO users_table SELECT * FROM users_table;

-- 1,600,000
INSERT INTO users_table SELECT * FROM users_table;

-- 3,200,000
INSERT INTO users_table SELECT * FROM users_table;

-- 6,400,000
INSERT INTO users_table SELECT * FROM users_table;

-- 12,800,000
INSERT INTO users_table SELECT * FROM users_table;

-- making the target list entry wider speeds up the leak to show up
 select *,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,* FROM users_table ;

 ```
 2019-10-22 17:22:26 +02:00
Jelte Fennema 78e495e030
Add shouldhaveshards to pg_dist_node (#2960) 
This is an improvement over #2512.

This adds the boolean shouldhaveshards column to pg_dist_node. When it's false, create_distributed_table for new collocation groups will not create shards on that node. Reference tables will still be created on nodes where it is false.
 2019-10-22 16:47:16 +02:00
Hanefi Onaldi 7ebda04494
Update all c-style comments in migration files 2019-10-21 16:05:53 +03:00
Jelte Fennema 7abedc38b0
Support subqueries in HAVING (#3098) 
Areas for further optimization:
- Don't save subquery results to a local file on the coordinator when the subquery is not in the having clause
- Push the the HAVING with subquery to the workers if there's a group by on the distribution column
- Don't push down the results to the workers when we don't push down the HAVING clause, only the coordinator needs it

Fixes #520
Fixes #756
Closes #2047
 2019-10-16 16:40:14 +02:00
Onur TIRTIR 3bfb2a078b
Make changes on if-statement in ExtractRangeTableList for furhter walker types (#3110) 2019-10-16 15:50:09 +03:00
Onur TIRTIR d5f83dc110
Refactor range table walkers (#3109) 2019-10-16 01:20:49 +03:00
SaitTalhaNisanci 94a7e6475c
Remove copyright years (#2918) 
* Update year as 2012-2019

* Remove copyright years
 2019-10-15 17:44:30 +03:00
Philip Dubé 74cb168205 Remove Postgres 10 support 2019-10-11 21:56:56 +00:00
Hadi Moshayedi b50d216536 Fix a typo 2019-10-10 10:44:41 -07:00
Philip Dubé 4063e7ca67 CALL delegation: apply strip_implicit_coercions to distribution argument 2019-10-10 17:42:43 +00:00
Philip Dubé dd490b6376 Cache whether an object is in pg_dist_object. Avoids redundant lookups for non-distributed objects 2019-10-10 14:50:38 +00:00
Nils Dijk 4a4a220945
Fix enum add value order and pg12 (#3082) 
DESCRIPTION: Fix order for enum values and correctly support pg12

PG 12 introduces `ALTER TYPE ... ADD VALUE ...` during transactions. Earlier versions would error out when called in a transaction, hence we connect to workers outside of the transaction which could cause inconsistencies on pg12 now that postgres doesn't error with this syntax anymore.

During the implementation of this fix it became apparent there was an error with the ordering of enum labels when the type was recreated. A patch and test have been included.
 2019-10-07 17:16:19 +02:00