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Add support for REFRESH MATERIALIZED VIEW CONCURRENTLY.

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This allows reads to continue without any blocking while a REFRESH
runs.  The new data appears atomically as part of transaction
commit.

Review questioned the Assert that a matview was not a system
relation.  This will be addressed separately.

Reviewed by Hitoshi Harada, Robert Haas, Andres Freund.
Merged after review with security patch f3ab5d4.
This commit is contained in:
Kevin Grittner
2013-07-16 12:55:44 -05:00
parent 7f7485a0cd
commit cc1965a99b
16 changed files with 644 additions and 57 deletions
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5
src/backend/executor/nodeModifyTable.c
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@ -950,7 +950,7 @@ ExecModifyTable(ModifyTableState *node)
bool isNull;
relkind = resultRelInfo->ri_RelationDesc->rd_rel->relkind;
if (relkind == RELKIND_RELATION)
if (relkind == RELKIND_RELATION || relkind == RELKIND_MATVIEW)
{
datum = ExecGetJunkAttribute(slot,
junkfilter->jf_junkAttNo,
@ -1280,7 +1280,8 @@ ExecInitModifyTable(ModifyTable *node, EState *estate, int eflags)
char relkind;
relkind = resultRelInfo->ri_RelationDesc->rd_rel->relkind;
if (relkind == RELKIND_RELATION)
if (relkind == RELKIND_RELATION ||
relkind == RELKIND_MATVIEW)
{
j->jf_junkAttNo = ExecFindJunkAttribute(j, "ctid");
if (!AttributeNumberIsValid(j->jf_junkAttNo))