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Custom reloptions for table AM

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Let table AM define custom reloptions for its tables. This allows specifying
AM-specific parameters by the WITH clause when creating a table.

The reloptions, which could be used outside of table AM, are now extracted
into the CommonRdOptions data structure.  These options could be by decision
of table AM directly specified by a user or calculated in some way.

The new test module test_tam_options evaluates the ability to set up custom
reloptions and calculate fields of CommonRdOptions on their base.

The code may use some parts from prior work by Hao Wu.

Discussion: https://postgr.es/m/CAPpHfdurb9ycV8udYqM%3Do0sPS66PJ4RCBM1g-bBpvzUfogY0EA%40mail.gmail.com
Discussion: https://postgr.es/m/AMUA1wBBBxfc3tKRLLdU64rb.1.1683276279979.Hmail.wuhao%40hashdata.cn
Reviewed-by: Reviewed-by: Pavel Borisov, Matthias van de Meent, Jess Davis
This commit is contained in:
Alexander Korotkov
2024-04-08 11:23:28 +03:00
parent 6f3d8d5e7c
commit 9bd99f4c26
29 changed files with 639 additions and 161 deletions
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4
src/backend/access/heap/heapam.c
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@@ -2279,8 +2279,8 @@ heap_multi_insert(Relation relation, TupleTableSlot **slots, int ntuples,
Assert(!(options & HEAP_INSERT_NO_LOGICAL));
needwal = RelationNeedsWAL(relation);
saveFreeSpace = RelationGetTargetPageFreeSpace(relation,
HEAP_DEFAULT_FILLFACTOR);
saveFreeSpace = HeapGetTargetPageFreeSpace(relation,
HEAP_DEFAULT_FILLFACTOR);
/* Toast and set header data in all the slots */
heaptuples = palloc(ntuples * sizeof(HeapTuple));