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Handle INSERT .. ON CONFLICT with partitioned tables

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Commit eb7ed3f306 enabled unique constraints on partitioned tables,
but one thing that was not working properly is INSERT/ON CONFLICT.
This commit introduces a new node keeps state related to the ON CONFLICT
clause per partition, and fills it when that partition is about to be
used for tuple routing.

Author: Amit Langote, Álvaro Herrera
Reviewed-by: Etsuro Fujita, Pavan Deolasee
Discussion: https://postgr.es/m/20180228004602.cwdyralmg5ejdqkq@alvherre.pgsql
This commit is contained in:
Alvaro Herrera
2018-03-26 10:43:54 -03:00
parent 1b89c2188b
commit 555ee77a96
14 changed files with 638 additions and 84 deletions
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4
src/backend/executor/execMain.c
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@@ -1347,11 +1347,15 @@ InitResultRelInfo(ResultRelInfo *resultRelInfo,
resultRelInfo->ri_FdwRoutine = GetFdwRoutineForRelation(resultRelationDesc, true);
else
resultRelInfo->ri_FdwRoutine = NULL;
/* The following fields are set later if needed */
resultRelInfo->ri_FdwState = NULL;
resultRelInfo->ri_usesFdwDirectModify = false;
resultRelInfo->ri_ConstraintExprs = NULL;
resultRelInfo->ri_junkFilter = NULL;
resultRelInfo->ri_projectReturning = NULL;
resultRelInfo->ri_onConflictArbiterIndexes = NIL;
resultRelInfo->ri_onConflict = NULL;
/*
* Partition constraint, which also includes the partition constraint of