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Minor formatting changes as per code-review

pull/431/head
Brian Cloutier 2016-04-06 05:15:51 -07:00
parent 509ffbfc54
commit 01bdab891b
2 changed files with 18 additions and 13 deletions
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3
src/backend/distributed/planner/multi_logical_optimizer.c
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@ -3529,7 +3529,8 @@ CoPartitionedTables(Oid firstRelationId, Oid secondRelationId)
/*
* ShardIntervalsEqual checks if given shard intervals have equal min/max values.
* ShardIntervalsEqual checks if given shard intervals have equal min/max values under
* some comparison function
*/
static bool
ShardIntervalsEqual(FmgrInfo *comparisonFunction, ShardInterval *firstInterval,

18
src/backend/distributed/planner/multi_physical_planner.c
View File

@ -2003,7 +2003,7 @@ SubquerySqlTaskList(Job *job)
uint32 anchorRangeTableId = 0;
uint32 rangeTableIndex = 0;
const uint32 fragmentSize = sizeof(RangeTableFragment);
uint64 maxTableSize = 0;
uint64 maxPrunedTableSize = 0;
/* find filters on partition columns */
ExtractQueryWalker((Node *) subquery, &queryList);
@ -2045,7 +2045,7 @@ SubquerySqlTaskList(Job *job)
uint32 tableId = rangeTableIndex + 1; /* tableId starts from 1 */
uint32 finalShardCount = 0;
uint32 shardIndex = 0;
uint64 tableSize = 0;
uint64 prunedTableSize = 0;
if (opExpressionList != NIL)
{
@ -2073,9 +2073,6 @@ SubquerySqlTaskList(Job *job)
for (shardIndex = 0; shardIndex < finalShardCount; shardIndex++)
{
ShardInterval *shardInterval = sortedIntervalArray[shardIndex];
tableSize += ShardLength(shardInterval->shardId);
RangeTableFragment *shardFragment = palloc0(fragmentSize);
shardFragment->fragmentReference = &(shardInterval->shardId);
shardFragment->fragmentType = CITUS_RTE_RELATION;
@ -2095,10 +2092,17 @@ SubquerySqlTaskList(Job *job)
/* get next fragment for the first relation list */
fragmentCombinationCell = lnext(fragmentCombinationCell);
}
prunedTableSize += ShardLength(shardInterval->shardId);
}
if (anchorRangeTableId == 0 || tableSize > maxTableSize){
maxTableSize = tableSize;
/*
* The shards of the anchor table are not shipped between workers if it can be
* avoided. By picking the largest table to be the anchor we're reducing network
* traffic.
*/
if (anchorRangeTableId == 0 || prunedTableSize > maxPrunedTableSize){
maxTableSize = prunedTableSize;
anchorRangeTableId = tableId;
}