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Directly modify foreign tables.

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postgres_fdw can now sent an UPDATE or DELETE statement directly to
the foreign server in simple cases, rather than sending a SELECT FOR
UPDATE statement and then updating or deleting rows one-by-one.

Etsuro Fujita, reviewed by Rushabh Lathia, Shigeru Hanada, Kyotaro
Horiguchi, Albe Laurenz, Thom Brown, and me.
This commit is contained in:
Robert Haas
2016-03-18 13:48:58 -04:00
parent 3422feccca
commit 0bf3ae88af
21 changed files with 1515 additions and 125 deletions
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2
src/backend/nodes/copyfuncs.c
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@@ -188,6 +188,7 @@ _copyModifyTable(const ModifyTable *from)
COPY_NODE_FIELD(withCheckOptionLists);
COPY_NODE_FIELD(returningLists);
COPY_NODE_FIELD(fdwPrivLists);
COPY_BITMAPSET_FIELD(fdwDirectModifyPlans);
COPY_NODE_FIELD(rowMarks);
COPY_SCALAR_FIELD(epqParam);
COPY_SCALAR_FIELD(onConflictAction);
@@ -648,6 +649,7 @@ _copyForeignScan(const ForeignScan *from)
/*
* copy remainder of node
*/
COPY_SCALAR_FIELD(operation);
COPY_SCALAR_FIELD(fs_server);
COPY_NODE_FIELD(fdw_exprs);
COPY_NODE_FIELD(fdw_private);