external
/
citus
mirror of https://github.com/citusdata/citus.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Apply first pass of review feedback

pull/896/head
Onder Kalaci 2016-10-06 23:22:20 +03:00
parent 3bcd4ef83e
commit 1f74364b23
10 changed files with 1164 additions and 74 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/backend/distributed/executor/multi_executor.c
View File

@ -57,23 +57,18 @@ multi_ExecutorStart(QueryDesc *queryDesc, int eflags)
executorType = JobExecutorType(multiPlan);
if (executorType == MULTI_EXECUTOR_ROUTER)
{
Task *task = NULL;
List *taskList = workerJob->taskList;
TupleDesc tupleDescriptor = ExecCleanTypeFromTL(
planStatement->planTree->targetlist, false);
List *dependendJobList PG_USED_FOR_ASSERTS_ONLY = workerJob->dependedJobList;
/* router executor can only execute distributed plans with a single task */
Assert(list_length(taskList) == 1);
/* router executor cannot execute task with depencencies */
Assert(dependendJobList == NIL);
task = (Task *) linitial(taskList);
/* we need to set tupleDesc in executorStart */
queryDesc->tupDesc = tupleDescriptor;
/* drop into the router executor */
RouterExecutorStart(queryDesc, eflags, task);
RouterExecutorStart(queryDesc, eflags);
}
else
{

5
src/backend/distributed/executor/multi_router_executor.c
View File

@ -133,14 +133,11 @@ static void MarkRemainingInactivePlacements(void);
* execution.
*/
void
RouterExecutorStart(QueryDesc *queryDesc, int eflags, Task *task)
RouterExecutorStart(QueryDesc *queryDesc, int eflags)
{
EState *executorState = NULL;
CmdType commandType = queryDesc->operation;
/* ensure that the task is not NULL */
Assert(task != NULL);
/* disallow triggers during distributed modify commands */
if (commandType != CMD_SELECT)
{

10
src/backend/distributed/executor/multi_server_executor.c
View File

@ -127,8 +127,8 @@ RouterExecutablePlan(MultiPlan *multiPlan, MultiExecutorType executorType)
List *workerDependentTaskList = NIL;
bool masterQueryHasAggregates = false;
/* router executor cannot execute queries that hit more than one shard */
if (taskCount != 1)
/* router executor cannot execute queries that hit zero shards */
if (taskCount == 0)
{
return false;
}
@ -141,6 +141,12 @@ RouterExecutablePlan(MultiPlan *multiPlan, MultiExecutorType executorType)
return true;
}
/* router executor cannot execute SELECT queries that hit more than one shard */
if (taskCount != 1)
{
return false;
}
if (executorType == MULTI_EXECUTOR_TASK_TRACKER)
{
return false;

4
src/backend/distributed/planner/multi_planner.c
View File

@ -72,8 +72,10 @@ multi_planner(Query *parse, int cursorOptions, ParamListInfo boundParams)
* then generate a query for that individual shard. If any of the
* involved tables don't prune down to a single shard, or if the
* pruned shards aren't colocated, we error out.
*
* TODO: we currently not support CTEs.
*/
if (InsertSelectQuery(parse))
if (InsertSelectQuery(parse) && parse->cteList == NULL)
{
AddHiddenPartitionColumnParameter(parse);
}

212
src/backend/distributed/planner/multi_router_planner.c
View File

@ -106,12 +106,14 @@ static bool MultiRouterPlannableQuery(Query *query, MultiExecutorType taskExecut
static RelationRestrictionContext * copyRelationRestrictionContext(
RelationRestrictionContext *oldContext);
static Node * ReplaceHiddenParameter(Node *node, void *context);
static Var * MakeInt4Column();
static Var * MakeInt4Column(void);
static Const * MakeInt4Constant(Datum constantValue);
static void ErrorIfInsertSelectQueryNotSupported(Query *queryTree);
static void ErrorIfMultiTaskRouterSelectQueryUnsupported(Query *query);
static void ErrorIfNotAllParticipatingTablesAreColocated(Query *query);
static void ErrorIfInsertPartitionColumnDoesNotMatchSelect(Query *query);
static void AddHiddenParameterToFirstTableRecursively(Query *query);
static Query * FirstQueryReferencingDistributedTable(Query *query);
static void AddHiddenParameterToFirstTable(Query *query);
/*
@ -249,6 +251,7 @@ CreateMultiTaskRouterPlan(Query *originalQuery, Query *query,
uint64 selectAnchorShardId = INVALID_SHARD_ID;
List *insertShardPlacementList = NULL;
List *intersectedPlacementList = NULL;
RangeTblEntry *rangeTableEntry = NULL;
/*
* Replace the magic value in all baserestrictinfos. Note that
@ -276,7 +279,11 @@ CreateMultiTaskRouterPlan(Query *originalQuery, Query *query,
if (routerQuery == NULL)
{
elog(ERROR, "couldn't prune down sufficiently for insert pushdown");
ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot perform distributed planning for the given "
"modification"),
errdetail(
"Select query cannot be pushed down to the worker.")));
}
/* Ensure that we have INSERTed table's placement exists on the same worker */
@ -287,21 +294,34 @@ CreateMultiTaskRouterPlan(Query *originalQuery, Query *query,
if (list_length(insertShardPlacementList) != list_length(
intersectedPlacementList))
{
ereport(DEBUG2, (errmsg("insert table does not have the same placements on "
"the select placement list. Skipping this task")));
ereport(DEBUG2, (errmsg("skipping the task"),
errdetail("Insert query hits %d placements, Select query "
"hits %d placements and only %d of those placements match.",
list_length(insertShardPlacementList), list_length(
selectPlacementList),
list_length(intersectedPlacementList))));
continue;
}
/* this is required for correct deparsing of the query */
ReorderInsertSelectTargetListsIfExists(copiedOriginal);
/* setting an alias simplifies deparsing of RETURNING */
rangeTableEntry = linitial(copiedOriginal->rtable);
if (rangeTableEntry->alias == NULL)
{
Alias *alias = makeAlias(CITUS_TABLE_ALIAS, NIL);
rangeTableEntry->alias = alias;
}
/* and generate the full query string */
deparse_shard_query(copiedOriginal, distributedTableId, shardInterval->shardId,
queryString);
ereport(DEBUG4, (errmsg("distributed statement: %s", queryString->data)));
sqlTask = CreateBasicTask(jobId, taskIdIndex++, SQL_TASK, queryString->data);
sqlTask = CreateBasicTask(jobId, taskIdIndex++, MODIFY_TASK, queryString->data);
sqlTask->dependedTaskList = NULL;
sqlTask->anchorShardId = shardId;
sqlTask->taskPlacementList = insertShardPlacementList;
@ -336,18 +356,14 @@ CreateMultiTaskRouterPlan(Query *originalQuery, Query *query,
static void
ErrorIfInsertSelectQueryNotSupported(Query *queryTree)
{
RangeTblEntry *insertRte = NULL;
RangeTblEntry *subqueryRte = NULL;
Query *subquery = NULL;
Oid insertRelationId = InvalidOid;
/* we only do this check for INSERT ... SELECT queries */
AssertArg(InsertSelectQuery(queryTree));
insertRte = linitial(queryTree->rtable);
subqueryRte = lsecond(queryTree->rtable);
subquery = subqueryRte->subquery;
insertRelationId = insertRte->relid;
/* we support this feature only for colocated tables */
ErrorIfNotAllParticipatingTablesAreColocated(queryTree);
@ -355,36 +371,93 @@ ErrorIfInsertSelectQueryNotSupported(Query *queryTree)
if (contain_mutable_functions((Node *) queryTree))
{
ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("non-IMMUTABLE functions are not allowed in INSERT ... "
"SELECT queries")));
errmsg("cannot perform distributed planning for the given "
"modification"),
errdetail(
"Stable and volatile functions are not allowed in INSERT ... "
"SELECT queries")));
}
if (subquery->limitCount != NULL)
if (queryTree->cteList != NULL)
{
ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("LIMIT clause are not allowed in INSERT ... SELECT "
"queries")));
errmsg("cannot perform distributed planning for the given "
"modification"),
errdetail(
"Common table expressions are not allowed in INSERT ... SELECT "
"queries")));
}
if (subquery->limitOffset != NULL)
{
ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("OFFSET clause are not allowed in INSERT ... SELECT "
"queries")));
}
/*TODO: check with Andres. Should we allow on partition column? I'm cool with not having window functions */
if (subquery->windowClause != NULL)
{
ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("Window functions are not allowed in INSERT ... SELECT "
"queries")));
}
/* we don't support LIMIT, OFFSET and WINDOW functions */
ErrorIfMultiTaskRouterSelectQueryUnsupported(subquery);
/* ensure that INSERT's partition column comes from SELECT's partition column */
ErrorIfInsertPartitionColumnDoesNotMatchSelect(queryTree);
}
/*
* ErrorUnsupportedMultiTaskSelectQuery errors out on queries that we support
* for single task router queries, but, cannot allow for multi task router
* queries. We do these checks recursively to prevent any wrong results.
*/
static void
ErrorIfMultiTaskRouterSelectQueryUnsupported(Query *query)
{
List *queryList = NIL;
ListCell *queryCell = NULL;
ExtractQueryWalker((Node *) query, &queryList);
foreach(queryCell, queryList)
{
Query *subquery = (Query *) lfirst(queryCell);
Assert(subquery->commandType == CMD_SELECT);
if (subquery->limitCount != NULL)
{
ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot perform distributed planning for the given "
"modification"),
errdetail(
"LIMIT clauses are not allowed in INSERT ... SELECT "
"queries")));
}
if (subquery->limitOffset != NULL)
{
ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot perform distributed planning for the given "
"modification"),
errdetail(
"OFFSET clauses are not allowed in INSERT ... SELECT "
"queries")
));
}
if (subquery->windowClause != NULL)
{
ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot perform distributed planning for the given "
"modification"),
errdetail(
"Window functions are not allowed in INSERT ... SELECT "
"queries")));
}
if (subquery->setOperations != NULL)
{
ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot perform distributed planning for the given "
"modification"),
errdetail(
"Union, Intersect and Except are currently unsupported are not allowed in INSERT ... SELECT "
"queries")));
}
}
}
/*
* ErrorIfNotAllParticipatingTablesAreColocated errors out of all tables
@ -428,8 +501,6 @@ ErrorIfNotAllParticipatingTablesAreColocated(Query *query)
ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("all participating tables should be colocated")));
}
return;
}
@ -497,8 +568,7 @@ ErrorIfInsertPartitionColumnDoesNotMatchSelect(Query *query)
/*
* AddHiddenPartitionColumnParameter() can only be used with
* INSERT ... SELECT queries. We add this hidden parameter to
* recursively for subqueries.
* INSERT ... SELECT queries.
*
* If the input query is not INSERT .. SELECT the function errors-out.
*/
@ -506,26 +576,68 @@ void
AddHiddenPartitionColumnParameter(Query *originalQuery)
{
Query *subquery = NULL;
Query *referencedSubquery = NULL;
RangeTblEntry *subqueryEntry = NULL;
if (!InsertSelectQuery(originalQuery))
{
elog(ERROR, "Only INSERT .. SELECT queries can be modified");
ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot perform distributed planning for the given"
" modification")));
}
/* TODO: once CTEs are present, this does not work */
subqueryEntry = (RangeTblEntry *) list_nth(originalQuery->rtable, 1);
subquery = subqueryEntry->subquery;
AddHiddenParameterToFirstTableRecursively(subquery);
referencedSubquery = FirstQueryReferencingDistributedTable(subquery);
AddHiddenParameterToFirstTable(referencedSubquery);
}
static Query *
FirstQueryReferencingDistributedTable(Query *query)
{
List *queryList = NIL;
ListCell *queryCell = NULL;
Query *subquery = NULL;
ExtractQueryWalker((Node *) query, &queryList);
/* iterate and find the query which references to distributed table */
foreach(queryCell, queryList)
{
Query *innerSubquery = (Query *) lfirst(queryCell);
List *rangeTableList = NIL;
ListCell *rangeTableCell = NULL;
/* extract range table entries */
ExtractRangeTableEntryWalker((Node *) innerSubquery, &rangeTableList);
foreach(rangeTableCell, rangeTableList)
{
RangeTblEntry *rangeTableEntry = (RangeTblEntry *) lfirst(rangeTableCell);
if (IsDistributedTable(rangeTableEntry->relid))
{
subquery = innerSubquery;
break;
}
}
}
return subquery;
}
/*
* AddHiddenParameterToFirstTableRecursively adds a hidden parameter
* AddHiddenParameterToFirstTable adds a hidden parameter
* ($1 = partitionColumn) for the first table on the query.
*/
static void
AddHiddenParameterToFirstTableRecursively(Query *query)
AddHiddenParameterToFirstTable(Query *query)
{
Param *hiddenParam = makeNode(Param);
Node *hiddenBound = NULL;
@ -537,9 +649,6 @@ AddHiddenParameterToFirstTableRecursively(Query *query)
Oid greaterOperator = InvalidOid;
bool hashable = false;
List *subqueryEntryList = NIL;
ListCell *rangeTableEntryCell = NULL;
AssertArg(query->commandType == CMD_SELECT);
hiddenParam->paramkind = PARAM_EXTERN;
@ -574,17 +683,6 @@ AddHiddenParameterToFirstTableRecursively(Query *query)
query->jointree->quals = make_and_qual(query->jointree->quals,
hiddenBound);
}
/* recursively do same addition for subqueries of this query */
subqueryEntryList = SubqueryEntryList(query);
foreach(rangeTableEntryCell, subqueryEntryList)
{
RangeTblEntry *rangeTableEntry =
(RangeTblEntry *) lfirst(rangeTableEntryCell);
Query *innerSubquery = rangeTableEntry->subquery;
AddHiddenParameterToFirstTableRecursively(innerSubquery);
}
}
@ -1205,7 +1303,7 @@ RouterModifyTask(Query *originalQuery, Query *query)
rangeTableEntry = linitial(originalQuery->rtable);
if (rangeTableEntry->alias == NULL)
{
Alias *alias = makeAlias(UPSERT_ALIAS, NIL);
Alias *alias = makeAlias(CITUS_TABLE_ALIAS, NIL);
rangeTableEntry->alias = alias;
}
}
@ -1494,7 +1592,8 @@ RouterSelectTask(Query *originalQuery, Query *query,
task->anchorShardId = shardId;
task->dependedTaskList = NIL;
task->upsertQuery = upsertQuery;
//task->requiresMasterEvaluation = false;
/* task->requiresMasterEvaluation = false; */
return task;
}
@ -1622,11 +1721,6 @@ TargetShardIntervalsForSelect(Query *query,
List *pseudoRestrictionList = extract_actual_clauses(joinInfoList, true);
bool whereFalseQuery = false;
/* elog(DEBUG2, "relation id: %d", relationId); */
/* elog(DEBUG2, "restrictClauseList-: %s", pretty_format_node_dump(nodeToString(restrictClauseList))); */
/* elog(DEBUG2, "join info-: %s", pretty_format_node_dump(nodeToString(relationRestriction->relOptInfo->joininfo))); */
relationRestriction->prunedShardIntervalList = NIL;
/*
@ -2021,6 +2115,8 @@ MultiRouterPlannableQuery(Query *query, MultiExecutorType taskExecutorType,
}
#include "nodes/print.h"
/*
* ReorderInsertSelectTargetListsIfExists reorders the target lists of INSERT/SELECT
* query which is required for deparsing purposes. The reordered query is returned.
@ -2288,7 +2384,7 @@ ReplaceHiddenParameter(Node *node, void *context)
{
param = (Param *) leftop;
}
else if (IsA(rightop, Param)) //IsA(leftop, Var))/* &&) */
else if (IsA(rightop, Param)) /* IsA(leftop, Var))/ * &&) * / */
{
param = (Param *) rightop;
}

2
src/include/distributed/multi_router_executor.h
View File

@ -33,7 +33,7 @@ typedef struct XactShardConnSet
extern bool AllModificationsCommutative;
extern void RouterExecutorStart(QueryDesc *queryDesc, int eflags, Task *task);
extern void RouterExecutorStart(QueryDesc *queryDesc, int eflags);
extern void RouterExecutorRun(QueryDesc *queryDesc, ScanDirection direction, long count);
extern void RouterExecutorFinish(QueryDesc *queryDesc);
extern void RouterExecutorEnd(QueryDesc *queryDesc);

2
src/include/distributed/multi_router_planner.h
View File

@ -25,7 +25,7 @@
#define HIDDEN_PARAMETER_ID 0xdeadbeef
/* reserved alias name for UPSERTs */
#define UPSERT_ALIAS "citus_table_alias"
#define CITUS_TABLE_ALIAS "citus_table_alias"
extern MultiPlan * MultiRouterPlanCreate(Query *originalQuery, Query *query,

736
src/test/regress/expected/multi_insert_select.out Normal file
View File

@ -0,0 +1,736 @@
--
-- MULTI_INSERT_SELECT
--
ALTER SEQUENCE pg_catalog.pg_dist_shardid_seq RESTART 13300000;
ALTER SEQUENCE pg_catalog.pg_dist_jobid_seq RESTART 13300000;
CREATE TABLE raw_events_first (user_id int, time timestamp, value_1 int, value_2 int, value_3 float, value_4 bigint, UNIQUE(user_id, value_1));
SELECT master_create_distributed_table('raw_events_first', 'user_id', 'hash');
master_create_distributed_table
---------------------------------
(1 row)
SELECT master_create_worker_shards('raw_events_first', 4, 2);
master_create_worker_shards
-----------------------------
(1 row)
CREATE TABLE raw_events_second (user_id int, time timestamp, value_1 int, value_2 int, value_3 float, value_4 bigint, UNIQUE(user_id, value_1));
SELECT master_create_distributed_table('raw_events_second', 'user_id', 'hash');
master_create_distributed_table
---------------------------------
(1 row)
SELECT master_create_worker_shards('raw_events_second', 4, 2);
master_create_worker_shards
-----------------------------
(1 row)
CREATE TABLE agg_events (user_id int, value_1_agg int, value_2_agg int, value_3_agg float, value_4_agg bigint, agg_time timestamp, UNIQUE(user_id, value_1_agg));
SELECT master_create_distributed_table('agg_events', 'user_id', 'hash');
master_create_distributed_table
---------------------------------
(1 row)
SELECT master_create_worker_shards('agg_events', 4, 2);
master_create_worker_shards
-----------------------------
(1 row)
-- make tables as co-located
UPDATE pg_dist_partition SET colocationid = 100000 WHERE logicalrelid IN ('raw_events_first', 'raw_events_second', 'agg_events');
INSERT INTO raw_events_first (user_id, time, value_1, value_2, value_3, value_4) VALUES
(1, now(), 10, 100, 1000.1, 10000);
INSERT INTO raw_events_first (user_id, time, value_1, value_2, value_3, value_4) VALUES
(2, now(), 20, 200, 2000.1, 20000);
INSERT INTO raw_events_first (user_id, time, value_1, value_2, value_3, value_4) VALUES
(3, now(), 30, 300, 3000.1, 30000);
INSERT INTO raw_events_first (user_id, time, value_1, value_2, value_3, value_4) VALUES
(4, now(), 40, 400, 4000.1, 40000);
INSERT INTO raw_events_first (user_id, time, value_1, value_2, value_3, value_4) VALUES
(5, now(), 50, 500, 5000.1, 50000);
INSERT INTO raw_events_first (user_id, time, value_1, value_2, value_3, value_4) VALUES
(6, now(), 60, 600, 6000.1, 60000);
SET client_min_messages TO DEBUG4;
DEBUG: CommitTransactionCommand
DEBUG: CommitTransaction
DEBUG: name: unnamed; blockState: STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
-- raw table to raw table
INSERT INTO raw_events_second SELECT * FROM raw_events_first;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.raw_events_second_13300004 AS citus_table_alias (user_id, "time", value_1, value_2, value_3, value_4) SELECT user_id, "time", value_1, value_2, value_3, value_4 FROM public.raw_events_first_13300000 raw_events_first
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.raw_events_second_13300005 AS citus_table_alias (user_id, "time", value_1, value_2, value_3, value_4) SELECT user_id, "time", value_1, value_2, value_3, value_4 FROM public.raw_events_first_13300001 raw_events_first
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.raw_events_second_13300006 AS citus_table_alias (user_id, "time", value_1, value_2, value_3, value_4) SELECT user_id, "time", value_1, value_2, value_3, value_4 FROM public.raw_events_first_13300002 raw_events_first
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: distributed statement: INSERT INTO public.raw_events_second_13300007 AS citus_table_alias (user_id, "time", value_1, value_2, value_3, value_4) SELECT user_id, "time", value_1, value_2, value_3, value_4 FROM public.raw_events_first_13300003 raw_events_first
DEBUG: ProcessQuery
DEBUG: Plan is router executable
DEBUG: CommitTransactionCommand
DEBUG: CommitTransaction
DEBUG: name: unnamed; blockState: STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: sent COMMIT over connection 13300007
DEBUG: sent COMMIT over connection 13300007
DEBUG: sent COMMIT over connection 13300005
DEBUG: sent COMMIT over connection 13300005
DEBUG: sent COMMIT over connection 13300006
DEBUG: sent COMMIT over connection 13300006
DEBUG: sent COMMIT over connection 13300004
DEBUG: sent COMMIT over connection 13300004
-- see that our first multi shard INSERT...SELECT works expected
SET client_min_messages TO INFO;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: ProcessUtility
SELECT
raw_events_first.user_id
FROM
raw_events_first, raw_events_second
WHERE
raw_events_first.user_id = raw_events_second.user_id;
user_id
---------
1
5
3
4
6
2
(6 rows)
-- see that we get unique vialitons
INSERT INTO raw_events_second SELECT * FROM raw_events_first;
ERROR: duplicate key value violates unique constraint "raw_events_second_user_id_value_1_key_13300004"
DETAIL: Key (user_id, value_1)=(1, 10) already exists.
CONTEXT: while executing command on localhost:57638
-- add one more row
INSERT INTO raw_events_first (user_id, time) VALUES
(7, now());
-- try a single shard query
SET client_min_messages TO DEBUG4;
DEBUG: CommitTransactionCommand
DEBUG: CommitTransaction
DEBUG: name: unnamed; blockState: STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
INSERT INTO raw_events_second (user_id, time) SELECT user_id, time FROM raw_events_first WHERE user_id = 7;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: skipping the task
DETAIL: Insert query hits 2 placements, Select query hits 1 placements and only 1 of those placements match.
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.raw_events_second_13300005 AS citus_table_alias (user_id, "time") SELECT user_id, "time" FROM public.raw_events_first_13300001 raw_events_first WHERE (user_id = 7)
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: skipping the task
DETAIL: Insert query hits 2 placements, Select query hits 1 placements and only 1 of those placements match.
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: skipping the task
DETAIL: Insert query hits 2 placements, Select query hits 1 placements and only 1 of those placements match.
DEBUG: ProcessQuery
DEBUG: Plan is router executable
DEBUG: CommitTransactionCommand
DEBUG: CommitTransaction
DEBUG: name: unnamed; blockState: STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
SET client_min_messages TO INFO;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: ProcessUtility
-- add one more row
INSERT INTO raw_events_first (user_id, time, value_1, value_2, value_3, value_4) VALUES
(8, now(), 80, 800, 8000, 80000);
-- reorder columns
SET client_min_messages TO DEBUG4;
DEBUG: CommitTransactionCommand
DEBUG: CommitTransaction
DEBUG: name: unnamed; blockState: STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
INSERT INTO raw_events_second (value_2, value_1, value_3, value_4, user_id, time)
SELECT
value_2, value_1, value_3, value_4, user_id, time
FROM
raw_events_first
WHERE
user_id = 8;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.raw_events_second_13300004 AS citus_table_alias (user_id, "time", value_1, value_2, value_3, value_4) SELECT user_id, "time", value_1, value_2, value_3, value_4 FROM public.raw_events_first_13300000 raw_events_first WHERE (user_id = 8)
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: skipping the task
DETAIL: Insert query hits 2 placements, Select query hits 1 placements and only 1 of those placements match.
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: skipping the task
DETAIL: Insert query hits 2 placements, Select query hits 1 placements and only 1 of those placements match.
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: skipping the task
DETAIL: Insert query hits 2 placements, Select query hits 1 placements and only 1 of those placements match.
DEBUG: ProcessQuery
DEBUG: Plan is router executable
DEBUG: CommitTransactionCommand
DEBUG: CommitTransaction
DEBUG: name: unnamed; blockState: STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
-- add one more row
SET client_min_messages TO INFO;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: ProcessUtility
INSERT INTO raw_events_first (user_id, time, value_1, value_2, value_3, value_4) VALUES
(9, now(), 90, 900, 9000, 90000);
-- show that RETURNING also works
SET client_min_messages TO DEBUG4;
DEBUG: CommitTransactionCommand
DEBUG: CommitTransaction
DEBUG: name: unnamed; blockState: STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
INSERT INTO raw_events_second (user_id, value_1, value_3)
SELECT
user_id, value_1, value_3
FROM
raw_events_first
WHERE
value_3 = 9000
RETURNING *;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.raw_events_second_13300004 AS citus_table_alias (user_id, value_1, value_3) SELECT user_id, value_1, value_3 FROM public.raw_events_first_13300000 raw_events_first WHERE (value_3 = (9000)::double precision) RETURNING citus_table_alias.user_id, citus_table_alias."time", citus_table_alias.value_1, citus_table_alias.value_2, citus_table_alias.value_3, citus_table_alias.value_4
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.raw_events_second_13300005 AS citus_table_alias (user_id, value_1, value_3) SELECT user_id, value_1, value_3 FROM public.raw_events_first_13300001 raw_events_first WHERE (value_3 = (9000)::double precision) RETURNING citus_table_alias.user_id, citus_table_alias."time", citus_table_alias.value_1, citus_table_alias.value_2, citus_table_alias.value_3, citus_table_alias.value_4
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.raw_events_second_13300006 AS citus_table_alias (user_id, value_1, value_3) SELECT user_id, value_1, value_3 FROM public.raw_events_first_13300002 raw_events_first WHERE (value_3 = (9000)::double precision) RETURNING citus_table_alias.user_id, citus_table_alias."time", citus_table_alias.value_1, citus_table_alias.value_2, citus_table_alias.value_3, citus_table_alias.value_4
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: distributed statement: INSERT INTO public.raw_events_second_13300007 AS citus_table_alias (user_id, value_1, value_3) SELECT user_id, value_1, value_3 FROM public.raw_events_first_13300003 raw_events_first WHERE (value_3 = (9000)::double precision) RETURNING citus_table_alias.user_id, citus_table_alias."time", citus_table_alias.value_1, citus_table_alias.value_2, citus_table_alias.value_3, citus_table_alias.value_4
DEBUG: ProcessQuery
DEBUG: Plan is router executable
DEBUG: CommitTransactionCommand
DEBUG: CommitTransaction
DEBUG: name: unnamed; blockState: STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: sent COMMIT over connection 13300007
DEBUG: sent COMMIT over connection 13300007
DEBUG: sent COMMIT over connection 13300005
DEBUG: sent COMMIT over connection 13300005
DEBUG: sent COMMIT over connection 13300006
DEBUG: sent COMMIT over connection 13300006
DEBUG: sent COMMIT over connection 13300004
DEBUG: sent COMMIT over connection 13300004
user_id | time | value_1 | value_2 | value_3 | value_4
---------+------+---------+---------+---------+---------
9 | | 90 | | 9000 |
(1 row)
-- hits two shards
INSERT INTO raw_events_second (user_id, value_1, value_3)
SELECT
user_id, value_1, value_3
FROM
raw_events_first
WHERE
user_id = 9 OR user_id = 16
RETURNING *;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: skipping the task
DETAIL: Insert query hits 2 placements, Select query hits 1 placements and only 1 of those placements match.
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.raw_events_second_13300005 AS citus_table_alias (user_id, value_1, value_3) SELECT user_id, value_1, value_3 FROM public.raw_events_first_13300001 raw_events_first WHERE ((user_id = 9) OR (user_id = 16)) RETURNING citus_table_alias.user_id, citus_table_alias."time", citus_table_alias.value_1, citus_table_alias.value_2, citus_table_alias.value_3, citus_table_alias.value_4
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: skipping the task
DETAIL: Insert query hits 2 placements, Select query hits 1 placements and only 1 of those placements match.
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: distributed statement: INSERT INTO public.raw_events_second_13300007 AS citus_table_alias (user_id, value_1, value_3) SELECT user_id, value_1, value_3 FROM public.raw_events_first_13300003 raw_events_first WHERE ((user_id = 9) OR (user_id = 16)) RETURNING citus_table_alias.user_id, citus_table_alias."time", citus_table_alias.value_1, citus_table_alias.value_2, citus_table_alias.value_3, citus_table_alias.value_4
DEBUG: ProcessQuery
DEBUG: Plan is router executable
ERROR: duplicate key value violates unique constraint "raw_events_second_user_id_value_1_key_13300007"
DETAIL: Key (user_id, value_1)=(9, 90) already exists.
CONTEXT: while executing command on localhost:57637
-- now do some aggregations
INSERT INTO agg_events
SELECT
user_id, sum(value_1), avg(value_2), sum(value_3), count(value_4)
FROM
raw_events_first
GROUP BY
user_id;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300008 AS citus_table_alias (user_id, value_1_agg, value_2_agg, value_3_agg, value_4_agg) SELECT user_id, sum(value_1) AS sum, avg(value_2) AS avg, sum(value_3) AS sum, count(value_4) AS count FROM public.raw_events_first_13300000 raw_events_first GROUP BY user_id
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300009 AS citus_table_alias (user_id, value_1_agg, value_2_agg, value_3_agg, value_4_agg) SELECT user_id, sum(value_1) AS sum, avg(value_2) AS avg, sum(value_3) AS sum, count(value_4) AS count FROM public.raw_events_first_13300001 raw_events_first GROUP BY user_id
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300010 AS citus_table_alias (user_id, value_1_agg, value_2_agg, value_3_agg, value_4_agg) SELECT user_id, sum(value_1) AS sum, avg(value_2) AS avg, sum(value_3) AS sum, count(value_4) AS count FROM public.raw_events_first_13300002 raw_events_first GROUP BY user_id
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: distributed statement: INSERT INTO public.agg_events_13300011 AS citus_table_alias (user_id, value_1_agg, value_2_agg, value_3_agg, value_4_agg) SELECT user_id, sum(value_1) AS sum, avg(value_2) AS avg, sum(value_3) AS sum, count(value_4) AS count FROM public.raw_events_first_13300003 raw_events_first GROUP BY user_id
DEBUG: ProcessQuery
DEBUG: Plan is router executable
DEBUG: CommitTransactionCommand
DEBUG: CommitTransaction
DEBUG: name: unnamed; blockState: STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: sent COMMIT over connection 13300008
DEBUG: sent COMMIT over connection 13300008
DEBUG: sent COMMIT over connection 13300011
DEBUG: sent COMMIT over connection 13300011
DEBUG: sent COMMIT over connection 13300009
DEBUG: sent COMMIT over connection 13300009
DEBUG: sent COMMIT over connection 13300010
DEBUG: sent COMMIT over connection 13300010
-- group by column not exists on the SELECT target list
-- TODO: there is a bug on RETURNING
INSERT INTO agg_events (value_3_agg, value_4_agg, value_1_agg, user_id)
SELECT
sum(value_3), count(value_4), sum(value_1), user_id
FROM
raw_events_first
GROUP BY
value_2, user_id
RETURNING *;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300008 AS citus_table_alias (user_id, value_1_agg, value_3_agg, value_4_agg) SELECT user_id, sum(value_1) AS sum, sum(value_3) AS sum, count(value_4) AS count FROM public.raw_events_first_13300000 raw_events_first GROUP BY value_2, user_id RETURNING citus_table_alias.user_id, citus_table_alias.value_1_agg, citus_table_alias.value_2_agg, citus_table_alias.value_3_agg, citus_table_alias.value_4_agg, citus_table_alias.agg_time
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300009 AS citus_table_alias (user_id, value_1_agg, value_3_agg, value_4_agg) SELECT user_id, sum(value_1) AS sum, sum(value_3) AS sum, count(value_4) AS count FROM public.raw_events_first_13300001 raw_events_first GROUP BY value_2, user_id RETURNING citus_table_alias.user_id, citus_table_alias.value_1_agg, citus_table_alias.value_2_agg, citus_table_alias.value_3_agg, citus_table_alias.value_4_agg, citus_table_alias.agg_time
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300010 AS citus_table_alias (user_id, value_1_agg, value_3_agg, value_4_agg) SELECT user_id, sum(value_1) AS sum, sum(value_3) AS sum, count(value_4) AS count FROM public.raw_events_first_13300002 raw_events_first GROUP BY value_2, user_id RETURNING citus_table_alias.user_id, citus_table_alias.value_1_agg, citus_table_alias.value_2_agg, citus_table_alias.value_3_agg, citus_table_alias.value_4_agg, citus_table_alias.agg_time
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: distributed statement: INSERT INTO public.agg_events_13300011 AS citus_table_alias (user_id, value_1_agg, value_3_agg, value_4_agg) SELECT user_id, sum(value_1) AS sum, sum(value_3) AS sum, count(value_4) AS count FROM public.raw_events_first_13300003 raw_events_first GROUP BY value_2, user_id RETURNING citus_table_alias.user_id, citus_table_alias.value_1_agg, citus_table_alias.value_2_agg, citus_table_alias.value_3_agg, citus_table_alias.value_4_agg, citus_table_alias.agg_time
DEBUG: ProcessQuery
DEBUG: Plan is router executable
ERROR: duplicate key value violates unique constraint "agg_events_user_id_value_1_agg_key_13300008"
DETAIL: Key (user_id, value_1_agg)=(8, 80) already exists.
CONTEXT: while executing command on localhost:57638
-- some subquery tests
INSERT INTO agg_events
(value_1_agg,
user_id)
SELECT SUM(value_1),
id
FROM (SELECT raw_events_second.user_id AS id,
raw_events_second.value_1
FROM raw_events_first,
raw_events_second
WHERE raw_events_first.user_id = raw_events_second.user_id) AS foo
GROUP BY id;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: predicate pruning for shardId 13300005
DEBUG: predicate pruning for shardId 13300006
DEBUG: predicate pruning for shardId 13300007
DEBUG: distributed statement: INSERT INTO public.agg_events_13300008 AS citus_table_alias (user_id, value_1_agg) SELECT id, sum(value_1) AS sum FROM (SELECT raw_events_second.user_id AS id, raw_events_second.value_1 FROM public.raw_events_first_13300000 raw_events_first, public.raw_events_second_13300004 raw_events_second WHERE (raw_events_first.user_id = raw_events_second.user_id)) foo GROUP BY id
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: predicate pruning for shardId 13300004
DEBUG: predicate pruning for shardId 13300006
DEBUG: predicate pruning for shardId 13300007
DEBUG: distributed statement: INSERT INTO public.agg_events_13300009 AS citus_table_alias (user_id, value_1_agg) SELECT id, sum(value_1) AS sum FROM (SELECT raw_events_second.user_id AS id, raw_events_second.value_1 FROM public.raw_events_first_13300001 raw_events_first, public.raw_events_second_13300005 raw_events_second WHERE (raw_events_first.user_id = raw_events_second.user_id)) foo GROUP BY id
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300003
DEBUG: predicate pruning for shardId 13300004
DEBUG: predicate pruning for shardId 13300005
DEBUG: predicate pruning for shardId 13300007
DEBUG: distributed statement: INSERT INTO public.agg_events_13300010 AS citus_table_alias (user_id, value_1_agg) SELECT id, sum(value_1) AS sum FROM (SELECT raw_events_second.user_id AS id, raw_events_second.value_1 FROM public.raw_events_first_13300002 raw_events_first, public.raw_events_second_13300006 raw_events_second WHERE (raw_events_first.user_id = raw_events_second.user_id)) foo GROUP BY id
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300004
DEBUG: predicate pruning for shardId 13300005
DEBUG: predicate pruning for shardId 13300006
DEBUG: distributed statement: INSERT INTO public.agg_events_13300011 AS citus_table_alias (user_id, value_1_agg) SELECT id, sum(value_1) AS sum FROM (SELECT raw_events_second.user_id AS id, raw_events_second.value_1 FROM public.raw_events_first_13300003 raw_events_first, public.raw_events_second_13300007 raw_events_second WHERE (raw_events_first.user_id = raw_events_second.user_id)) foo GROUP BY id
DEBUG: ProcessQuery
DEBUG: Plan is router executable
ERROR: duplicate key value violates unique constraint "agg_events_user_id_value_1_agg_key_13300008"
DETAIL: Key (user_id, value_1_agg)=(1, 10) already exists.
CONTEXT: while executing command on localhost:57638
-- subquery one more level depth
INSERT INTO agg_events
(value_4_agg,
value_1_agg,
user_id)
SELECT v4,
v1,
id
FROM (SELECT SUM(raw_events_second.value_4) AS v4,
SUM(raw_events_first.value_1) AS v1,
raw_events_second.user_id AS id
FROM raw_events_first,
raw_events_second
WHERE raw_events_first.user_id = raw_events_second.user_id
GROUP BY raw_events_second.user_id) AS foo;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: predicate pruning for shardId 13300005
DEBUG: predicate pruning for shardId 13300006
DEBUG: predicate pruning for shardId 13300007
DEBUG: distributed statement: INSERT INTO public.agg_events_13300008 AS citus_table_alias (user_id, value_1_agg, value_4_agg) SELECT id, v1, v4 FROM (SELECT sum(raw_events_second.value_4) AS v4, sum(raw_events_first.value_1) AS v1, raw_events_second.user_id AS id FROM public.raw_events_first_13300000 raw_events_first, public.raw_events_second_13300004 raw_events_second WHERE (raw_events_first.user_id = raw_events_second.user_id) GROUP BY raw_events_second.user_id) foo
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: predicate pruning for shardId 13300004
DEBUG: predicate pruning for shardId 13300006
DEBUG: predicate pruning for shardId 13300007
DEBUG: distributed statement: INSERT INTO public.agg_events_13300009 AS citus_table_alias (user_id, value_1_agg, value_4_agg) SELECT id, v1, v4 FROM (SELECT sum(raw_events_second.value_4) AS v4, sum(raw_events_first.value_1) AS v1, raw_events_second.user_id AS id FROM public.raw_events_first_13300001 raw_events_first, public.raw_events_second_13300005 raw_events_second WHERE (raw_events_first.user_id = raw_events_second.user_id) GROUP BY raw_events_second.user_id) foo
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300003
DEBUG: predicate pruning for shardId 13300004
DEBUG: predicate pruning for shardId 13300005
DEBUG: predicate pruning for shardId 13300007
DEBUG: distributed statement: INSERT INTO public.agg_events_13300010 AS citus_table_alias (user_id, value_1_agg, value_4_agg) SELECT id, v1, v4 FROM (SELECT sum(raw_events_second.value_4) AS v4, sum(raw_events_first.value_1) AS v1, raw_events_second.user_id AS id FROM public.raw_events_first_13300002 raw_events_first, public.raw_events_second_13300006 raw_events_second WHERE (raw_events_first.user_id = raw_events_second.user_id) GROUP BY raw_events_second.user_id) foo
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300004
DEBUG: predicate pruning for shardId 13300005
DEBUG: predicate pruning for shardId 13300006
DEBUG: distributed statement: INSERT INTO public.agg_events_13300011 AS citus_table_alias (user_id, value_1_agg, value_4_agg) SELECT id, v1, v4 FROM (SELECT sum(raw_events_second.value_4) AS v4, sum(raw_events_first.value_1) AS v1, raw_events_second.user_id AS id FROM public.raw_events_first_13300003 raw_events_first, public.raw_events_second_13300007 raw_events_second WHERE (raw_events_first.user_id = raw_events_second.user_id) GROUP BY raw_events_second.user_id) foo
DEBUG: ProcessQuery
DEBUG: Plan is router executable
ERROR: duplicate key value violates unique constraint "agg_events_user_id_value_1_agg_key_13300008"
DETAIL: Key (user_id, value_1_agg)=(1, 10) already exists.
CONTEXT: while executing command on localhost:57638
-- some UPSERTS
INSERT INTO agg_events AS ae
(
user_id,
value_1_agg,
agg_time
)
SELECT user_id,
value_1,
time
FROM raw_events_first
ON conflict (user_id, value_1_agg)
DO UPDATE
SET agg_time = EXCLUDED.agg_time
WHERE ae.agg_time < EXCLUDED.agg_time;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300008 AS ae (user_id, value_1_agg, agg_time) SELECT user_id, value_1, "time" FROM public.raw_events_first_13300000 raw_events_first ON CONFLICT(user_id, value_1_agg) DO UPDATE SET agg_time = excluded.agg_time WHERE (ae.agg_time < excluded.agg_time)
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300009 AS ae (user_id, value_1_agg, agg_time) SELECT user_id, value_1, "time" FROM public.raw_events_first_13300001 raw_events_first ON CONFLICT(user_id, value_1_agg) DO UPDATE SET agg_time = excluded.agg_time WHERE (ae.agg_time < excluded.agg_time)
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300010 AS ae (user_id, value_1_agg, agg_time) SELECT user_id, value_1, "time" FROM public.raw_events_first_13300002 raw_events_first ON CONFLICT(user_id, value_1_agg) DO UPDATE SET agg_time = excluded.agg_time WHERE (ae.agg_time < excluded.agg_time)
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: distributed statement: INSERT INTO public.agg_events_13300011 AS ae (user_id, value_1_agg, agg_time) SELECT user_id, value_1, "time" FROM public.raw_events_first_13300003 raw_events_first ON CONFLICT(user_id, value_1_agg) DO UPDATE SET agg_time = excluded.agg_time WHERE (ae.agg_time < excluded.agg_time)
DEBUG: ProcessQuery
DEBUG: Plan is router executable
DEBUG: CommitTransactionCommand
DEBUG: CommitTransaction
DEBUG: name: unnamed; blockState: STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: sent COMMIT over connection 13300008
DEBUG: sent COMMIT over connection 13300008
DEBUG: sent COMMIT over connection 13300011
DEBUG: sent COMMIT over connection 13300011
DEBUG: sent COMMIT over connection 13300009
DEBUG: sent COMMIT over connection 13300009
DEBUG: sent COMMIT over connection 13300010
DEBUG: sent COMMIT over connection 13300010
-- upserts with returning
INSERT INTO agg_events AS ae
(
user_id,
value_1_agg,
agg_time
)
SELECT user_id,
value_1,
time
FROM raw_events_first
ON conflict (user_id, value_1_agg)
DO UPDATE
SET agg_time = EXCLUDED.agg_time
WHERE ae.agg_time < EXCLUDED.agg_time
RETURNING user_id, value_1_agg;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300008 AS ae (user_id, value_1_agg, agg_time) SELECT user_id, value_1, "time" FROM public.raw_events_first_13300000 raw_events_first ON CONFLICT(user_id, value_1_agg) DO UPDATE SET agg_time = excluded.agg_time WHERE (ae.agg_time < excluded.agg_time) RETURNING ae.user_id, ae.value_1_agg
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300009 AS ae (user_id, value_1_agg, agg_time) SELECT user_id, value_1, "time" FROM public.raw_events_first_13300001 raw_events_first ON CONFLICT(user_id, value_1_agg) DO UPDATE SET agg_time = excluded.agg_time WHERE (ae.agg_time < excluded.agg_time) RETURNING ae.user_id, ae.value_1_agg
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300010 AS ae (user_id, value_1_agg, agg_time) SELECT user_id, value_1, "time" FROM public.raw_events_first_13300002 raw_events_first ON CONFLICT(user_id, value_1_agg) DO UPDATE SET agg_time = excluded.agg_time WHERE (ae.agg_time < excluded.agg_time) RETURNING ae.user_id, ae.value_1_agg
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: distributed statement: INSERT INTO public.agg_events_13300011 AS ae (user_id, value_1_agg, agg_time) SELECT user_id, value_1, "time" FROM public.raw_events_first_13300003 raw_events_first ON CONFLICT(user_id, value_1_agg) DO UPDATE SET agg_time = excluded.agg_time WHERE (ae.agg_time < excluded.agg_time) RETURNING ae.user_id, ae.value_1_agg
DEBUG: ProcessQuery
DEBUG: Plan is router executable
DEBUG: CommitTransactionCommand
DEBUG: CommitTransaction
DEBUG: name: unnamed; blockState: STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: sent COMMIT over connection 13300008
DEBUG: sent COMMIT over connection 13300008
DEBUG: sent COMMIT over connection 13300011
DEBUG: sent COMMIT over connection 13300011
DEBUG: sent COMMIT over connection 13300009
DEBUG: sent COMMIT over connection 13300009
DEBUG: sent COMMIT over connection 13300010
DEBUG: sent COMMIT over connection 13300010
user_id | value_1_agg
---------+-------------
7 |
(1 row)
-- TODO:: add hll and date_trunc
INSERT INTO agg_events (user_id, value_1_agg)
SELECT
user_id, sum(value_1 + value_2)
FROM
raw_events_first GROUP BY user_id;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300008 AS citus_table_alias (user_id, value_1_agg) SELECT user_id, sum((value_1 + value_2)) AS sum FROM public.raw_events_first_13300000 raw_events_first GROUP BY user_id
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300009 AS citus_table_alias (user_id, value_1_agg) SELECT user_id, sum((value_1 + value_2)) AS sum FROM public.raw_events_first_13300001 raw_events_first GROUP BY user_id
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300010 AS citus_table_alias (user_id, value_1_agg) SELECT user_id, sum((value_1 + value_2)) AS sum FROM public.raw_events_first_13300002 raw_events_first GROUP BY user_id
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: distributed statement: INSERT INTO public.agg_events_13300011 AS citus_table_alias (user_id, value_1_agg) SELECT user_id, sum((value_1 + value_2)) AS sum FROM public.raw_events_first_13300003 raw_events_first GROUP BY user_id
DEBUG: ProcessQuery
DEBUG: Plan is router executable
DEBUG: CommitTransactionCommand
DEBUG: CommitTransaction
DEBUG: name: unnamed; blockState: STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: sent COMMIT over connection 13300008
DEBUG: sent COMMIT over connection 13300008
DEBUG: sent COMMIT over connection 13300011
DEBUG: sent COMMIT over connection 13300011
DEBUG: sent COMMIT over connection 13300009
DEBUG: sent COMMIT over connection 13300009
DEBUG: sent COMMIT over connection 13300010
DEBUG: sent COMMIT over connection 13300010
-- FILTER CLAUSE
INSERT INTO agg_events (user_id, value_1_agg)
SELECT
user_id, sum(value_1 + value_2) FILTER (where value_3 = 15)
FROM
raw_events_first GROUP BY user_id;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300008 AS citus_table_alias (user_id, value_1_agg) SELECT user_id, sum((value_1 + value_2)) FILTER (WHERE (value_3 = (15)::double precision)) AS sum FROM public.raw_events_first_13300000 raw_events_first GROUP BY user_id
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300009 AS citus_table_alias (user_id, value_1_agg) SELECT user_id, sum((value_1 + value_2)) FILTER (WHERE (value_3 = (15)::double precision)) AS sum FROM public.raw_events_first_13300001 raw_events_first GROUP BY user_id
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300003
DEBUG: distributed statement: INSERT INTO public.agg_events_13300010 AS citus_table_alias (user_id, value_1_agg) SELECT user_id, sum((value_1 + value_2)) FILTER (WHERE (value_3 = (15)::double precision)) AS sum FROM public.raw_events_first_13300002 raw_events_first GROUP BY user_id
DEBUG: predicate pruning for shardId 13300000
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: distributed statement: INSERT INTO public.agg_events_13300011 AS citus_table_alias (user_id, value_1_agg) SELECT user_id, sum((value_1 + value_2)) FILTER (WHERE (value_3 = (15)::double precision)) AS sum FROM public.raw_events_first_13300003 raw_events_first GROUP BY user_id
DEBUG: ProcessQuery
DEBUG: Plan is router executable
DEBUG: CommitTransactionCommand
DEBUG: CommitTransaction
DEBUG: name: unnamed; blockState: STARTED; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: sent COMMIT over connection 13300008
DEBUG: sent COMMIT over connection 13300008
DEBUG: sent COMMIT over connection 13300011
DEBUG: sent COMMIT over connection 13300011
DEBUG: sent COMMIT over connection 13300009
DEBUG: sent COMMIT over connection 13300009
DEBUG: sent COMMIT over connection 13300010
DEBUG: sent COMMIT over connection 13300010
-- TODO: UUIDs
-- unsupported JOIN
INSERT INTO agg_events
(value_4_agg,
value_1_agg,
user_id)
SELECT v4,
v1,
id
FROM (SELECT SUM(raw_events_second.value_4) AS v4,
SUM(raw_events_first.value_1) AS v1,
raw_events_second.user_id AS id
FROM raw_events_first,
raw_events_second
WHERE raw_events_first.user_id != raw_events_second.user_id
GROUP BY raw_events_second.user_id) AS foo;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
DEBUG: predicate pruning for shardId 13300001
DEBUG: predicate pruning for shardId 13300002
DEBUG: predicate pruning for shardId 13300003
ERROR: cannot perform distributed planning for the given modification
DETAIL: Select query cannot be pushed down to the worker.
-- INSERT partition column does not match with SELECT partition column
INSERT INTO agg_events
(value_4_agg,
value_1_agg,
user_id)
SELECT v4,
v1,
id
FROM (SELECT SUM(raw_events_second.value_4) AS v4,
SUM(raw_events_first.value_1) AS v1,
raw_events_second.value_3 AS id
FROM raw_events_first,
raw_events_second
WHERE raw_events_first.user_id = raw_events_second.user_id
GROUP BY raw_events_second.value_3) AS foo;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
ERROR: SELECT query should return bare partition column on the same ordinal position with INSERT query's partition column
-- error cases
-- no part column at all
INSERT INTO raw_events_second (value_1) SELECT value_1 FROM raw_events_first;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
ERROR: SELECT query should return bare partition column on the same ordinal position with INSERT query's partition column
INSERT INTO raw_events_second (value_1) SELECT user_id FROM raw_events_first;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
ERROR: SELECT query should return bare partition column on the same ordinal position with INSERT query's partition column
INSERT INTO raw_events_second (user_id) SELECT value_1 FROM raw_events_first;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
ERROR: SELECT query should return bare partition column on the same ordinal position with INSERT query's partition column
INSERT INTO raw_events_second (user_id) SELECT user_id * 2 FROM raw_events_first;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
ERROR: SELECT query should return bare partition column on the same ordinal position with INSERT query's partition column
INSERT INTO raw_events_second (user_id) SELECT user_id::bigint FROM raw_events_first;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
ERROR: SELECT query should return bare partition column on the same ordinal position with INSERT query's partition column
INSERT INTO agg_events (value_3_agg, value_4_agg, value_1_agg, value_2_agg, user_id) SELECT sum(value_3), count(value_4), user_id, sum(value_1), avg(value_2) FROM raw_events_first GROUP BY user_id;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
ERROR: SELECT query should return bare partition column on the same ordinal position with INSERT query's partition column
INSERT INTO agg_events (value_3_agg, value_4_agg, value_1_agg, value_2_agg, user_id) SELECT sum(value_3), count(value_4), user_id, sum(value_1), value_2 FROM raw_events_first GROUP BY user_id, value_2;
DEBUG: StartTransactionCommand
DEBUG: StartTransaction
DEBUG: name: unnamed; blockState: DEFAULT; state: INPROGR, xid/subid/cid: 0/1/0, nestlvl: 1, children:
ERROR: SELECT query should return bare partition column on the same ordinal position with INSERT query's partition column

2
src/test/regress/multi_schedule
View File

@ -29,6 +29,8 @@ test: multi_create_table_constraints
test: multi_master_protocol
test: multi_load_data
test: multi_insert_select
# ----------
# Miscellaneous tests to check our query planning behavior
# ----------

256
src/test/regress/sql/multi_insert_select.sql Normal file
View File

@ -0,0 +1,256 @@
--
-- MULTI_INSERT_SELECT
--
ALTER SEQUENCE pg_catalog.pg_dist_shardid_seq RESTART 13300000;
ALTER SEQUENCE pg_catalog.pg_dist_jobid_seq RESTART 13300000;
CREATE TABLE raw_events_first (user_id int, time timestamp, value_1 int, value_2 int, value_3 float, value_4 bigint, UNIQUE(user_id, value_1));
SELECT master_create_distributed_table('raw_events_first', 'user_id', 'hash');
SELECT master_create_worker_shards('raw_events_first', 4, 2);
CREATE TABLE raw_events_second (user_id int, time timestamp, value_1 int, value_2 int, value_3 float, value_4 bigint, UNIQUE(user_id, value_1));
SELECT master_create_distributed_table('raw_events_second', 'user_id', 'hash');
SELECT master_create_worker_shards('raw_events_second', 4, 2);
CREATE TABLE agg_events (user_id int, value_1_agg int, value_2_agg int, value_3_agg float, value_4_agg bigint, agg_time timestamp, UNIQUE(user_id, value_1_agg));
SELECT master_create_distributed_table('agg_events', 'user_id', 'hash');
SELECT master_create_worker_shards('agg_events', 4, 2);
-- make tables as co-located
UPDATE pg_dist_partition SET colocationid = 100000 WHERE logicalrelid IN ('raw_events_first', 'raw_events_second', 'agg_events');
INSERT INTO raw_events_first (user_id, time, value_1, value_2, value_3, value_4) VALUES
(1, now(), 10, 100, 1000.1, 10000);
INSERT INTO raw_events_first (user_id, time, value_1, value_2, value_3, value_4) VALUES
(2, now(), 20, 200, 2000.1, 20000);
INSERT INTO raw_events_first (user_id, time, value_1, value_2, value_3, value_4) VALUES
(3, now(), 30, 300, 3000.1, 30000);
INSERT INTO raw_events_first (user_id, time, value_1, value_2, value_3, value_4) VALUES
(4, now(), 40, 400, 4000.1, 40000);
INSERT INTO raw_events_first (user_id, time, value_1, value_2, value_3, value_4) VALUES
(5, now(), 50, 500, 5000.1, 50000);
INSERT INTO raw_events_first (user_id, time, value_1, value_2, value_3, value_4) VALUES
(6, now(), 60, 600, 6000.1, 60000);
SET client_min_messages TO DEBUG4;
-- raw table to raw table
INSERT INTO raw_events_second SELECT * FROM raw_events_first;
-- see that our first multi shard INSERT...SELECT works expected
SET client_min_messages TO INFO;
SELECT
raw_events_first.user_id
FROM
raw_events_first, raw_events_second
WHERE
raw_events_first.user_id = raw_events_second.user_id;
-- see that we get unique vialitons
INSERT INTO raw_events_second SELECT * FROM raw_events_first;
-- add one more row
INSERT INTO raw_events_first (user_id, time) VALUES
(7, now());
-- try a single shard query
SET client_min_messages TO DEBUG4;
INSERT INTO raw_events_second (user_id, time) SELECT user_id, time FROM raw_events_first WHERE user_id = 7;
SET client_min_messages TO INFO;
-- add one more row
INSERT INTO raw_events_first (user_id, time, value_1, value_2, value_3, value_4) VALUES
(8, now(), 80, 800, 8000, 80000);
-- reorder columns
SET client_min_messages TO DEBUG4;
INSERT INTO raw_events_second (value_2, value_1, value_3, value_4, user_id, time)
SELECT
value_2, value_1, value_3, value_4, user_id, time
FROM
raw_events_first
WHERE
user_id = 8;
-- add one more row
SET client_min_messages TO INFO;
INSERT INTO raw_events_first (user_id, time, value_1, value_2, value_3, value_4) VALUES
(9, now(), 90, 900, 9000, 90000);
-- show that RETURNING also works
SET client_min_messages TO DEBUG4;
INSERT INTO raw_events_second (user_id, value_1, value_3)
SELECT
user_id, value_1, value_3
FROM
raw_events_first
WHERE
value_3 = 9000
RETURNING *;
-- hits two shards
INSERT INTO raw_events_second (user_id, value_1, value_3)
SELECT
user_id, value_1, value_3
FROM
raw_events_first
WHERE
user_id = 9 OR user_id = 16
RETURNING *;
-- now do some aggregations
INSERT INTO agg_events
SELECT
user_id, sum(value_1), avg(value_2), sum(value_3), count(value_4)
FROM
raw_events_first
GROUP BY
user_id;
-- group by column not exists on the SELECT target list
-- TODO: there is a bug on RETURNING
INSERT INTO agg_events (value_3_agg, value_4_agg, value_1_agg, user_id)
SELECT
sum(value_3), count(value_4), sum(value_1), user_id
FROM
raw_events_first
GROUP BY
value_2, user_id
RETURNING *;
-- some subquery tests
INSERT INTO agg_events
(value_1_agg,
user_id)
SELECT SUM(value_1),
id
FROM (SELECT raw_events_second.user_id AS id,
raw_events_second.value_1
FROM raw_events_first,
raw_events_second
WHERE raw_events_first.user_id = raw_events_second.user_id) AS foo
GROUP BY id;
-- subquery one more level depth
INSERT INTO agg_events
(value_4_agg,
value_1_agg,
user_id)
SELECT v4,
v1,
id
FROM (SELECT SUM(raw_events_second.value_4) AS v4,
SUM(raw_events_first.value_1) AS v1,
raw_events_second.user_id AS id
FROM raw_events_first,
raw_events_second
WHERE raw_events_first.user_id = raw_events_second.user_id
GROUP BY raw_events_second.user_id) AS foo;
-- some UPSERTS
INSERT INTO agg_events AS ae
(
user_id,
value_1_agg,
agg_time
)
SELECT user_id,
value_1,
time
FROM raw_events_first
ON conflict (user_id, value_1_agg)
DO UPDATE
SET agg_time = EXCLUDED.agg_time
WHERE ae.agg_time < EXCLUDED.agg_time;
-- upserts with returning
INSERT INTO agg_events AS ae
(
user_id,
value_1_agg,
agg_time
)
SELECT user_id,
value_1,
time
FROM raw_events_first
ON conflict (user_id, value_1_agg)
DO UPDATE
SET agg_time = EXCLUDED.agg_time
WHERE ae.agg_time < EXCLUDED.agg_time
RETURNING user_id, value_1_agg;
-- TODO:: add hll and date_trunc
INSERT INTO agg_events (user_id, value_1_agg)
SELECT
user_id, sum(value_1 + value_2)
FROM
raw_events_first GROUP BY user_id;
-- FILTER CLAUSE
INSERT INTO agg_events (user_id, value_1_agg)
SELECT
user_id, sum(value_1 + value_2) FILTER (where value_3 = 15)
FROM
raw_events_first GROUP BY user_id;
-- TODO: UUIDs
-- unsupported JOIN
INSERT INTO agg_events
(value_4_agg,
value_1_agg,
user_id)
SELECT v4,
v1,
id
FROM (SELECT SUM(raw_events_second.value_4) AS v4,
SUM(raw_events_first.value_1) AS v1,
raw_events_second.user_id AS id
FROM raw_events_first,
raw_events_second
WHERE raw_events_first.user_id != raw_events_second.user_id
GROUP BY raw_events_second.user_id) AS foo;
-- INSERT partition column does not match with SELECT partition column
INSERT INTO agg_events
(value_4_agg,
value_1_agg,
user_id)
SELECT v4,
v1,
id
FROM (SELECT SUM(raw_events_second.value_4) AS v4,
SUM(raw_events_first.value_1) AS v1,
raw_events_second.value_3 AS id
FROM raw_events_first,
raw_events_second
WHERE raw_events_first.user_id = raw_events_second.user_id
GROUP BY raw_events_second.value_3) AS foo;
-- error cases
-- no part column at all
INSERT INTO raw_events_second (value_1) SELECT value_1 FROM raw_events_first;
INSERT INTO raw_events_second (value_1) SELECT user_id FROM raw_events_first;
INSERT INTO raw_events_second (user_id) SELECT value_1 FROM raw_events_first;
INSERT INTO raw_events_second (user_id) SELECT user_id * 2 FROM raw_events_first;
INSERT INTO raw_events_second (user_id) SELECT user_id::bigint FROM raw_events_first;
INSERT INTO agg_events (value_3_agg, value_4_agg, value_1_agg, value_2_agg, user_id) SELECT sum(value_3), count(value_4), user_id, sum(value_1), avg(value_2) FROM raw_events_first GROUP BY user_id;
INSERT INTO agg_events (value_3_agg, value_4_agg, value_1_agg, value_2_agg, user_id) SELECT sum(value_3), count(value_4), user_id, sum(value_1), value_2 FROM raw_events_first GROUP BY user_id, value_2;