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Clean up some code and comments in partbounds.c. 

Do some minor cleanup for commit c8434d64c: 1) remove a useless
assignment (in normal builds) and 2) improve comments a little.

Back-patch to v13 where the aforementioned commit went in.

Author: Etsuro Fujita
Reviewed-by: Alvaro Herrera
Discussion: https://postgr.es/m/CAPmGK16yCd2R4=bQ4g8N2dT9TtA5ZU+qNmJ3LPc_nypbNy4_2A@mail.gmail.com
This commit is contained in:
Etsuro Fujita 2020-09-10 18:00:00 +09:00
parent aad546bd0a
commit 3857f98f14
1 changed files with 5 additions and 7 deletions
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12
src/backend/partitioning/partbounds.c
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@ -1020,8 +1020,6 @@ partition_bounds_merge(int partnatts,
JoinType jointype,
List **outer_parts, List **inner_parts)
{
PartitionBoundInfo outer_binfo = outer_rel->boundinfo;
/*
* Currently, this function is called only from try_partitionwise_join(),
* so the join type should be INNER, LEFT, FULL, SEMI, or ANTI.
@ -1031,10 +1029,10 @@ partition_bounds_merge(int partnatts,
jointype == JOIN_ANTI);
/* The partitioning strategies should be the same. */
Assert(outer_binfo->strategy == inner_rel->boundinfo->strategy);
Assert(outer_rel->boundinfo->strategy == inner_rel->boundinfo->strategy);
*outer_parts = *inner_parts = NIL;
switch (outer_binfo->strategy)
switch (outer_rel->boundinfo->strategy)
{
case PARTITION_STRATEGY_HASH:
@ -1075,7 +1073,7 @@ partition_bounds_merge(int partnatts,
default:
elog(ERROR, "unexpected partition strategy: %d",
(int) outer_binfo->strategy);
(int) outer_rel->boundinfo->strategy);
return NULL; /* keep compiler quiet */
}
}
@ -1528,7 +1526,7 @@ merge_range_bounds(int partnatts, FmgrInfo *partsupfuncs,
&next_index);
Assert(merged_index >= 0);
/* Get the range of the merged partition. */
/* Get the range bounds of the merged partition. */
get_merged_range_bounds(partnatts, partsupfuncs,
partcollations, jointype,
&outer_lb, &outer_ub,
@ -1833,7 +1831,7 @@ merge_matching_partitions(PartitionMap *outer_map, PartitionMap *inner_map,
/*
* If neither of them has been merged, merge them. Otherwise, if one has
* been merged with a dummy relation on the other side (and the other
* been merged with a dummy partition on the other side (and the other
* hasn't yet been merged with anything), re-merge them. Otherwise, they
* can't be merged, so return -1.
*/