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Update PartitionTupleRouting struct comment 

Small review on edd44738bc.

Discussion: https://postgr.es/m/20180222165315.k27qfn4goskhoswj@alvherre.pgsql
Reviewed-by: Robert Haas, Amit Langote
This commit is contained in:
Alvaro Herrera 2018-02-26 17:05:46 -03:00
parent fb533e45f9
commit 364de25665
1 changed files with 7 additions and 3 deletions
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10
src/include/executor/execPartition.h
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@ -58,11 +58,15 @@ typedef struct PartitionDispatchData *PartitionDispatch;
* partition tree.
* num_dispatch number of partitioned tables in the partition
* tree (= length of partition_dispatch_info[])
* partition_oids Array of leaf partitions OIDs
* partition_oids Array of leaf partitions OIDs with one entry
* for every leaf partition in the partition tree,
* initialized in full by
* ExecSetupPartitionTupleRouting.
* partitions Array of ResultRelInfo* objects with one entry
* for every leaf partition in the partition tree.
* for every leaf partition in the partition tree,
* initialized lazily by ExecInitPartitionInfo.
* num_partitions Number of leaf partitions in the partition tree
* (= 'partitions' array length)
* (= 'partitions_oid'/'partitions' array length)
* parent_child_tupconv_maps Array of TupleConversionMap objects with one
* entry for every leaf partition (required to
* convert tuple from the root table's rowtype to