We'd been relying on a single SET search_path command in an earlier
script, but a subsequent script RESET search_path, causing any further
bare functions to be created in the first schema on the search path.
However, starting with an older extension version and executing ALTER
scripts one at a time DOES avoid putting any functions in the public
namespace, so I wrote an upgrade script resilient to that, especially
because PostgreSQL 9.5 will error out if a function is already in the
schema it's being moved to.
Between restart (running the new code) and ALTER EXTENSION citus
UPGRADE there was an inconsistency where we assumed that
pg_dist_partition had the repmodel column set. Now we give it a default
value if the column doesn't exist yet.
With this change, we now push down foreign key constraints created during CREATE TABLE
statements. We also start to send foreign constraints during shard move along with
other DDL statements
create_reference_table() creates a hash distributed table with shard count
equals to 1 and replication factor equals to shard_replication_factor
configuration value.
Adds support for PostgreSQL 9.6 by copying in the requisite ruleutils
file and refactoring the out/readfuncs code to flexibly support the
old-style copy/pasted out/readfuncs (prior to 9.6) or use extensible
node APIs (in 9.6 and higher).
Most version-specific code within this change is only needed to set new
fields in the AggRef nodes we build for aggregations. Version-specific
test output files were added in certain cases, though in most they were
not necessary. Each such file begins by e.g. printing the major version
in order to clarify its purpose.
The comment atop citus_nodes.h details how to add support for new nodes
for when that becomes necessary.
This change adds the pg_dist_local_group metadata table, which indicates
the group id of the current node. It is expected that this table contains
one and only one row, which only contains the group id of the node as an
integer.
With this change, master_copy_shard_placement and master_move_shard_placement functions
start to copy/move given shard along with its co-located shards.
This commit completes having support in Citus by adding having support for
real-time and task-tracker executors. Multiple tests are added to regression
tests to cover new supported queries with having support.
This change adds the required infrastructure about metadata snapshot from MX
codebase into Citus, mainly metadata_sync.c file and master_metadata_snapshot UDF.
Two sets of tests are fixed by this change:
* multi_agg_approximate_distinct
* those in multi_task_tracker_extra_schedule
The first broke when we renamed stage to load in many files and was
never being run because the HyperLogLog extension wasn't easily
available in Debian. Now it's in our repo, so we install it and run
the test. I removed the distinct HLL target in favor of just always
running it and providing an output variant to handle when the extension
is absent. Basically, if PostgreSQL thinks HLL is available, the test
installs it and runs normally, otherwise the absent variant is used.
The second broke when I removed a test variant, erroneously believing
it to be related to an older Citus version. I've added a line in that
test to clarify why the variant is necessary (a practice we should
widely adopt).
Jason Petersen
Brian Cloutier
Brian Cloutier
Marco Slot
Marco Slot
Burak Yücesoy
Metin Döşlü
Metin Doslu
Jason Petersen
Andres Freund
Murat Tuncer
Murat Tuncer
Eren Başak
Önder Kalacı