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citus/src/include/distributed
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Muhammad Usama a8a5f34dc9 Allows parallel shard moves using logical replication 
Following changes are part of the commit
- Switch from ShareUpdateExclusiveLock to ShareLock when locking
  colocated relations during a shard move.
  This blocks concurrent DDL/TRUNCATE on the tables while still
  allowing parallel shard moves for other colocated relations.

- Drop the leftover replication lock that previously serialized shard
  moves performed via logical replication.
  This lock was only needed when we used to drop and recreate the
  subscriptions/publications before each move. Since Citus now removes
  those objects later as part of the “unused distributed objects” cleanup,
  shard moves via logical replication can safely run in parallel without
  additional locking.
 		2025-05-15 14:58:49 +05:00
..
commands Move stat view implementations into a submodule (#7975) 2025-04-29 14:22:29 +03:00
metadata Propagate SECURITY LABEL on tables and columns. (#7956) 2025-04-30 18:03:52 +01:00
stats Move stat view implementations into a submodule (#7975) 2025-04-29 14:22:29 +03:00
utils Move stat view implementations into a submodule (#7975) 2025-04-29 14:22:29 +03:00
adaptive_executor.h Refactor executor utility functions into multiple files (#6593) 2023-03-31 13:07:48 +02:00
argutils.h Add the necessary changes for rebalance strategies on enterprise (#3325) 2019-12-19 15:23:08 +01:00
backend_data.h Avoid re-assigning the global pid for client backends and bg workers when the application_name changes (#7791) 2024-12-23 14:01:53 +00:00
background_jobs.h PG16 compatibility: ruleutils and successful CREATE EXTENSION (#7087) 2023-08-02 16:04:51 +03:00
cancel_utils.h add IsHoldOffCancellationReceived utility function (#3290) 2019-12-12 17:32:59 +03:00
causal_clock.h Remove unused macros 2022-10-28 10:38:07 -07:00
citus_acquire_lock.h remove copyright years (#3286) 2019-12-11 21:14:08 +03:00
citus_clauses.h Rename master evaluation to coordinator evaluation 2020-07-07 10:37:41 +02:00
citus_custom_scan.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
citus_depended_object.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
citus_nodefuncs.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
citus_nodes.h Simplify CitusNewNode (#7434) 2024-01-22 14:55:14 +01:00
citus_ruleutils.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
citus_safe_lib.h Fix format attribute and IsLocalReplicationOriginSessionActive errors (#7055) 2023-07-13 17:41:57 +03:00
colocation_utils.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
combine_query_planner.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
commands.h Propagate SECURITY LABEL on tables and columns. (#7956) 2025-04-30 18:03:52 +01:00
comment.h Adds comment on database and role propagation (#7388) 2024-01-18 20:58:44 +03:00
connection_management.h Add citus_stat_counters view and citus_stat_counters_reset() function to reset it (#7917) 2025-04-28 12:23:52 +00:00
coordinator_protocol.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
cte_inline.h Remove citus.enable_cte_inlining GUC 2022-03-22 17:14:44 +01:00
deparse_shard_query.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
deparser.h Propagate SECURITY LABEL on tables and columns. (#7956) 2025-04-30 18:03:52 +01:00
directed_acyclic_graph_execution.h Fill in jobIdList field of DistributedExecution 2020-02-05 17:32:22 +00:00
distributed_deadlock_detection.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
distributed_execution_locks.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
distributed_planner.h Drops PG14 support (#7753) 2025-03-12 12:43:01 +03:00
distribution_column.h Add non-blocking variant of create_distributed_table (#6087) 2022-08-30 15:35:40 +03:00
enterprise.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
error_codes.h Issue worker messages with the same log level 2020-04-14 21:08:25 +02:00
errormessage.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
executor_util.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
extended_op_node_utils.h Fix some more master->coordinator comments 2020-07-07 10:37:53 +02:00
foreign_key_relationship.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
function_call_delegation.h Force-delegated functions' distribution argument must be reset as soon as the routine completes execution, 2022-02-17 10:48:30 -08:00
function_utils.h Semmle: Fix obvious issues (#3502) 2020-02-21 10:16:00 +01:00
hash_helpers.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
insert_select_executor.h This pull request introduces support for nonroutable merge commands in the following scenarios: 2023-06-19 12:23:40 -07:00
insert_select_planner.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
intermediate_result_pruning.h Refactor executor utility functions into multiple files (#6593) 2023-03-31 13:07:48 +02:00
intermediate_results.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
jsonbutils.h Multi tenant monitoring (#6725) 2023-04-05 17:44:17 +03:00
listutils.h Rename foreach_ macros to foreach_declared_ macros (#7700) 2025-03-12 11:01:49 +03:00
local_distributed_join_planner.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
local_executor.h Refactor executor utility functions into multiple files (#6593) 2023-03-31 13:07:48 +02:00
local_multi_copy.h Allow local execution for intermediate results in COPY 2021-02-09 15:00:06 +01:00
local_plan_cache.h Deparse/parse the local cached queries 2021-06-21 12:24:29 +03:00
locally_reserved_shared_connections.h COPY uses adaptive connection management on local node 2021-02-04 09:45:07 +01:00
lock_graph.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
log_utils.h Remove unused functions (#6220) 2022-08-22 11:53:25 +03:00
maintenanced.h Start Maintenance Daemon for Main DB at the server start. (#7254) 2023-10-30 09:44:13 +03:00
memutils.h Implementation for asycn FinishConnectionListEstablishment (#2584) 2019-03-22 17:30:42 +01:00
merge_executor.h This pull request introduces support for nonroutable merge commands in the following scenarios: 2023-06-19 12:23:40 -07:00
merge_planner.h PG17 Compatibility: Support MERGE features in Citus with clean exceptions (#7781) 2025-03-12 12:25:49 +03:00
metadata_cache.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
metadata_sync.h Drops PG14 support (#7753) 2025-03-12 12:43:01 +03:00
metadata_utility.h Propagates GRANT/REVOKE rights on table columns (#7918) 2025-04-04 11:54:16 +03:00
multi_executor.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
multi_explain.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
multi_join_order.h In the MERGE join clause, there is a datatype mismatch between target's distribution column 2023-07-27 16:06:00 -07:00
multi_logical_optimizer.h Fix union pushdown issue (#5079) 2021-07-29 13:52:55 +03:00
multi_logical_planner.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
multi_logical_replication.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
multi_partitioning_utils.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
multi_physical_planner.h remove a duplicate forward declaration and polish some comments (#7371) 2024-01-17 14:30:23 +00:00
multi_progress.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
multi_router_planner.h Fix 0-Task Plans in Single-Shard Router When Updating a Local Table with Reference Table in Subquery (#7897) 2025-03-12 12:43:01 +03:00
multi_server_executor.h This pull request introduces support for nonroutable merge commands in the following scenarios: 2023-06-19 12:23:40 -07:00
namespace_utils.h get rid of {Push/Pop}OverrideSearchPath (#7145) 2023-09-05 17:40:22 +02:00
param_utils.h Fixes: #5787 In prepared statements, map any unused parameters 2022-05-13 19:31:05 -07:00
pg_dist_background_job.h Implement infrastructure to run sql jobs in the background (#6296) 2022-09-09 16:11:19 +03:00
pg_dist_background_task.h Adds control for background task executors involving a node (#6771) 2023-04-06 14:12:39 +03:00
pg_dist_backrgound_task_depend.h Implement infrastructure to run sql jobs in the background (#6296) 2022-09-09 16:11:19 +03:00
pg_dist_cleanup.h 'Deferred Drop' and robust 'Shard Cleanup' for Splits. (#6258) 2022-09-06 12:11:20 -07:00
pg_dist_colocation.h Add distributioncolumncollation to to pg_dist_colocation 2019-12-09 19:51:40 +00:00
pg_dist_local_group.h Remove copyright years (#2918) 2019-10-15 17:44:30 +03:00
pg_dist_node.h Replace master with citus in logs and comments (#5210) 2021-08-26 11:31:17 +03:00
pg_dist_node_metadata.h MERGE: Support reference table as source with local table as target 2023-05-02 11:37:29 -07:00
pg_dist_partition.h Dont auto-undistribute user-added citus local tables (#5314) 2021-10-28 12:10:26 +03:00
pg_dist_placement.h Fix some more master->coordinator comments 2020-07-07 10:37:53 +02:00
pg_dist_rebalance_strategy.h Implement an improvement threshold in the rebalancer (#4927) 2021-05-11 14:24:59 +02:00
pg_dist_schema.h Rename pg_dist tenant_schema to pg_dist_schema (#7001) 2023-06-14 12:12:15 +03:00
pg_dist_shard.h Remove cstore_fdw-related logic 2021-11-16 13:59:03 +01:00
pg_dist_transaction.h Adds 2PC distributed commands from other databases (#7203) 2023-12-22 19:19:41 +03:00
placement_access.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
placement_connection.h Drop support for Inactive Shard placements 2021-10-22 18:03:35 +02:00
priority.h Support changing CPU priorities for backends and shard moves (#6126) 2022-08-16 13:07:17 +03:00
query_colocation_checker.h [Bug Fix] : writing incorrect data to target Merge repartition Command (#7659) 2024-09-12 21:16:39 -07:00
query_pushdown_planning.h Error out for queries with outer joins and pseudoconstant quals in PG<17 (#7937) 2025-05-11 21:47:28 +00:00
query_utils.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
recursive_planning.h Enhance MERGE .. WHEN NOT MATCHED BY SOURCE for repartitioned source (#7900) 2025-03-12 12:43:01 +03:00
reference_table_utils.h Parallelize shard rebalancing to reduce rebalance time 2025-05-15 14:58:39 +05:00
relation_access_tracking.h Detach relation access tracking from connection management 2022-07-28 11:27:59 +02:00
relation_restriction_equivalence.h PG16 compatibility - one more outer join check (#7126) 2023-08-17 19:07:18 +03:00
relation_utils.h move pg_version_constants.h to toplevel include (#7335) 2023-11-09 15:09:39 +00:00
relay_utility.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
remote_commands.h CDC implementation for Citus using Logical Replication (#6623) 2023-03-28 16:00:21 +05:30
remote_transaction.h Add support for create / drop database propagation from non-main databases (#7439) 2024-02-21 10:44:01 +00:00
repartition_executor.h Enhance MERGE .. WHEN NOT MATCHED BY SOURCE for repartitioned source (#7900) 2025-03-12 12:43:01 +03:00
repartition_join_execution.h Enable re-partition joins after local execution 2022-02-23 19:40:21 +01:00
replicate_none_dist_table_shard.h Not undistribute Citus local table when converting it to a reference table / single-shard table 2023-08-29 12:57:28 +03:00
replication_origin_session_utils.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
resource_lock.h Allows parallel shard moves using logical replication 2025-05-15 14:58:49 +05:00
run_from_same_connection.h Remove copyright years (#2918) 2019-10-15 17:44:30 +03:00
shard_cleaner.h Add failure handling for CREATE DATABASE commands (#7483) 2024-02-23 17:02:32 +00:00
shard_pruning.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
shard_rebalancer.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
shard_split.h 'Deferred Drop' and robust 'Shard Cleanup' for Splits. (#6258) 2022-09-06 12:11:20 -07:00
shard_transfer.h Parallelize shard rebalancing to reduce rebalance time 2025-05-15 14:58:39 +05:00
shard_utils.h Switch to sequential mode on long partition names 2021-04-14 15:27:50 +03:00
shardinterval_utils.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
shardsplit_logical_replication.h Add non-blocking variant of create_distributed_table (#6087) 2022-08-30 15:35:40 +03:00
shardsplit_shared_memory.h Share more code between splits and moves (#6152) 2022-08-15 20:21:51 +03:00
shared_connection_stats.h PG 15 Compat: Resolve compile issues + shmem requests 2022-07-15 10:11:39 +02:00
shared_library_init.h PG16 compatibility: ruleutils and successful CREATE EXTENSION (#7087) 2023-08-02 16:04:51 +03:00
statistics_collection.h Remove copyright years (#2918) 2019-10-15 17:44:30 +03:00
string_utils.h Make enterprise features open source (#6008) 2022-06-16 00:23:46 -07:00
subplan_execution.h Locally execute queries that don't need any data access (#3410) 2020-01-23 18:28:34 +01:00
task_execution_utils.h Remove task tracker executor (#3850) 2020-07-18 13:11:36 +03:00
tdigest_extension.h Feature: tdigest aggregate (#3897) 2020-06-12 13:50:28 +02:00
tenant_schema_metadata.h Make citus_stat_tenants work with schema-based tenants. (#6936) 2023-06-13 14:11:45 +03:00
time_constants.h refactor some of hard coded values in citus gucs (#3137) 2019-10-30 10:35:39 +03:00
transaction_identifier.h Remove copyright years (#2918) 2019-10-15 17:44:30 +03:00
transaction_management.h Adds REASSIGN OWNED BY propagation (#7319) 2023-12-28 15:15:58 +03:00
transaction_recovery.h Adds 2PC distributed commands from other databases (#7203) 2023-12-22 19:19:41 +03:00
transmit.h Create directories and files with pg_file_create_mode and pg_dir_create_mode permissions (#7479) 2024-02-07 12:48:31 +01:00
tuple_destination.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
tuplestore.h Remove copyright years (#2918) 2019-10-15 17:44:30 +03:00
type_utils.h This implements a new UDF citus_get_cluster_clock() that returns a monotonically 2022-10-28 10:15:08 -07:00
version_compat.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
worker_create_or_replace.h Propagate CREATE PUBLICATION statements 2023-03-29 00:59:12 +02:00
worker_log_messages.h Issue worker messages with the same log level 2020-04-14 21:08:25 +02:00
worker_manager.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
worker_protocol.h Sort includes (#7326) 2023-11-23 18:19:54 +01:00
worker_shard_copy.h Exclude-Generated-Columns-In-Copy (#6721) 2023-03-07 18:15:50 +03:00
worker_shard_visibility.h Convert citus.hide_shards_from_app_name_prefixes to citus.show_shards_for_app_name_prefixes 2022-05-03 14:22:13 +02:00
worker_transaction.h Fixes create user queries from Citus non-main databases with other users (#7442) 2024-01-24 12:57:54 +03:00