mirror of
https://github.com/postgres/postgres.git
synced 2025-07-09 22:41:56 +03:00
Rename enable_partition_wise_join to enable_partitionwise_join
Discussion: https://www.postgresql.org/message-id/flat/ad24e4f4-6481-066e-e3fb-6ef4a3121882%402ndquadrant.com
This commit is contained in:
Peter Eisentraut
@ -929,7 +929,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
|
||||
/*
|
||||
* We need attr_needed data for building targetlist of a join
|
||||
* relation representing join between matching partitions for
|
||||
* partition-wise join. A given attribute of a child will be
|
||||
* partitionwise join. A given attribute of a child will be
|
||||
* needed in the same highest joinrel where the corresponding
|
||||
* attribute of parent is needed. Hence it suffices to use the
|
||||
* same Relids set for parent and child.
|
||||
@ -973,7 +973,7 @@ set_append_rel_size(PlannerInfo *root, RelOptInfo *rel,
|
||||
/*
|
||||
* Copy/Modify targetlist. Even if this child is deemed empty, we need
|
||||
* its targetlist in case it falls on nullable side in a child-join
|
||||
* because of partition-wise join.
|
||||
* because of partitionwise join.
|
||||
*
|
||||
* NB: the resulting childrel->reltarget->exprs may contain arbitrary
|
||||
* expressions, which otherwise would not occur in a rel's targetlist.
|
||||
@ -2636,7 +2636,7 @@ standard_join_search(PlannerInfo *root, int levels_needed, List *initial_rels)
|
||||
join_search_one_level(root, lev);
|
||||
|
||||
/*
|
||||
* Run generate_partition_wise_join_paths() and
|
||||
* Run generate_partitionwise_join_paths() and
|
||||
* generate_gather_paths() for each just-processed joinrel. We could
|
||||
* not do this earlier because both regular and partial paths can get
|
||||
* added to a particular joinrel at multiple times within
|
||||
@ -2649,8 +2649,8 @@ standard_join_search(PlannerInfo *root, int levels_needed, List *initial_rels)
|
||||
{
|
||||
rel = (RelOptInfo *) lfirst(lc);
|
||||
|
||||
/* Create paths for partition-wise joins. */
|
||||
generate_partition_wise_join_paths(root, rel);
|
||||
/* Create paths for partitionwise joins. */
|
||||
generate_partitionwise_join_paths(root, rel);
|
||||
|
||||
/* Create GatherPaths for any useful partial paths for rel */
|
||||
generate_gather_paths(root, rel);
|
||||
@ -3405,8 +3405,8 @@ compute_parallel_worker(RelOptInfo *rel, double heap_pages, double index_pages,
|
||||
}
|
||||
|
||||
/*
|
||||
* generate_partition_wise_join_paths
|
||||
* Create paths representing partition-wise join for given partitioned
|
||||
* generate_partitionwise_join_paths
|
||||
* Create paths representing partitionwise join for given partitioned
|
||||
* join relation.
|
||||
*
|
||||
* This must not be called until after we are done adding paths for all
|
||||
@ -3414,7 +3414,7 @@ compute_parallel_worker(RelOptInfo *rel, double heap_pages, double index_pages,
|
||||
* generated here has a reference.
|
||||
*/
|
||||
void
|
||||
generate_partition_wise_join_paths(PlannerInfo *root, RelOptInfo *rel)
|
||||
generate_partitionwise_join_paths(PlannerInfo *root, RelOptInfo *rel)
|
||||
{
|
||||
List *live_children = NIL;
|
||||
int cnt_parts;
|
||||
@ -3442,8 +3442,8 @@ generate_partition_wise_join_paths(PlannerInfo *root, RelOptInfo *rel)
|
||||
|
||||
Assert(child_rel != NULL);
|
||||
|
||||
/* Add partition-wise join paths for partitioned child-joins. */
|
||||
generate_partition_wise_join_paths(root, child_rel);
|
||||
/* Add partitionwise join paths for partitioned child-joins. */
|
||||
generate_partitionwise_join_paths(root, child_rel);
|
||||
|
||||
/* Dummy children will not be scanned, so ignore those. */
|
||||
if (IS_DUMMY_REL(child_rel))
|
||||
|
||||
@ -127,7 +127,7 @@ bool enable_material = true;
|
||||
bool enable_mergejoin = true;
|
||||
bool enable_hashjoin = true;
|
||||
bool enable_gathermerge = true;
|
||||
bool enable_partition_wise_join = false;
|
||||
bool enable_partitionwise_join = false;
|
||||
bool enable_parallel_append = true;
|
||||
bool enable_parallel_hash = true;
|
||||
|
||||
|
||||
@ -39,7 +39,7 @@ static bool restriction_is_constant_false(List *restrictlist,
|
||||
static void populate_joinrel_with_paths(PlannerInfo *root, RelOptInfo *rel1,
|
||||
RelOptInfo *rel2, RelOptInfo *joinrel,
|
||||
SpecialJoinInfo *sjinfo, List *restrictlist);
|
||||
static void try_partition_wise_join(PlannerInfo *root, RelOptInfo *rel1,
|
||||
static void try_partitionwise_join(PlannerInfo *root, RelOptInfo *rel1,
|
||||
RelOptInfo *rel2, RelOptInfo *joinrel,
|
||||
SpecialJoinInfo *parent_sjinfo,
|
||||
List *parent_restrictlist);
|
||||
@ -903,8 +903,8 @@ populate_joinrel_with_paths(PlannerInfo *root, RelOptInfo *rel1,
|
||||
break;
|
||||
}
|
||||
|
||||
/* Apply partition-wise join technique, if possible. */
|
||||
try_partition_wise_join(root, rel1, rel2, joinrel, sjinfo, restrictlist);
|
||||
/* Apply partitionwise join technique, if possible. */
|
||||
try_partitionwise_join(root, rel1, rel2, joinrel, sjinfo, restrictlist);
|
||||
}
|
||||
|
||||
|
||||
@ -1286,25 +1286,25 @@ restriction_is_constant_false(List *restrictlist, bool only_pushed_down)
|
||||
/*
|
||||
* Assess whether join between given two partitioned relations can be broken
|
||||
* down into joins between matching partitions; a technique called
|
||||
* "partition-wise join"
|
||||
* "partitionwise join"
|
||||
*
|
||||
* Partition-wise join is possible when a. Joining relations have same
|
||||
* Partitionwise join is possible when a. Joining relations have same
|
||||
* partitioning scheme b. There exists an equi-join between the partition keys
|
||||
* of the two relations.
|
||||
*
|
||||
* Partition-wise join is planned as follows (details: optimizer/README.)
|
||||
* Partitionwise join is planned as follows (details: optimizer/README.)
|
||||
*
|
||||
* 1. Create the RelOptInfos for joins between matching partitions i.e
|
||||
* child-joins and add paths to them.
|
||||
*
|
||||
* 2. Construct Append or MergeAppend paths across the set of child joins.
|
||||
* This second phase is implemented by generate_partition_wise_join_paths().
|
||||
* This second phase is implemented by generate_partitionwise_join_paths().
|
||||
*
|
||||
* The RelOptInfo, SpecialJoinInfo and restrictlist for each child join are
|
||||
* obtained by translating the respective parent join structures.
|
||||
*/
|
||||
static void
|
||||
try_partition_wise_join(PlannerInfo *root, RelOptInfo *rel1, RelOptInfo *rel2,
|
||||
try_partitionwise_join(PlannerInfo *root, RelOptInfo *rel1, RelOptInfo *rel2,
|
||||
RelOptInfo *joinrel, SpecialJoinInfo *parent_sjinfo,
|
||||
List *parent_restrictlist)
|
||||
{
|
||||
@ -1334,7 +1334,7 @@ try_partition_wise_join(PlannerInfo *root, RelOptInfo *rel1, RelOptInfo *rel2,
|
||||
joinrel->part_scheme == rel2->part_scheme);
|
||||
|
||||
/*
|
||||
* Since we allow partition-wise join only when the partition bounds of
|
||||
* Since we allow partitionwise join only when the partition bounds of
|
||||
* the joining relations exactly match, the partition bounds of the join
|
||||
* should match those of the joining relations.
|
||||
*/
|
||||
@ -1478,7 +1478,7 @@ have_partkey_equi_join(RelOptInfo *rel1, RelOptInfo *rel2, JoinType jointype,
|
||||
|
||||
/*
|
||||
* Only clauses referencing the partition keys are useful for
|
||||
* partition-wise join.
|
||||
* partitionwise join.
|
||||
*/
|
||||
ipk1 = match_expr_to_partition_keys(expr1, rel1, strict_op);
|
||||
if (ipk1 < 0)
|
||||
@ -1489,13 +1489,13 @@ have_partkey_equi_join(RelOptInfo *rel1, RelOptInfo *rel2, JoinType jointype,
|
||||
|
||||
/*
|
||||
* If the clause refers to keys at different ordinal positions, it can
|
||||
* not be used for partition-wise join.
|
||||
* not be used for partitionwise join.
|
||||
*/
|
||||
if (ipk1 != ipk2)
|
||||
continue;
|
||||
|
||||
/*
|
||||
* The clause allows partition-wise join if only it uses the same
|
||||
* The clause allows partitionwise join if only it uses the same
|
||||
* operator family as that specified by the partition key.
|
||||
*/
|
||||
if (rel1->part_scheme->strategy == PARTITION_STRATEGY_HASH)
|
||||
|
||||
Reference in New Issue
Block a user