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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/outfuncs.c
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@ -356,6 +356,7 @@ _outModifyTable(StringInfo str, const ModifyTable *node)
WRITE_NODE_FIELD(withCheckOptionLists);
WRITE_NODE_FIELD(returningLists);
WRITE_NODE_FIELD(fdwPrivLists);
WRITE_BITMAPSET_FIELD(fdwDirectModifyPlans);
WRITE_NODE_FIELD(rowMarks);
WRITE_INT_FIELD(epqParam);
WRITE_ENUM_FIELD(onConflictAction, OnConflictAction);
@ -608,6 +609,7 @@ _outForeignScan(StringInfo str, const ForeignScan *node)
_outScanInfo(str, (const Scan *) node);
WRITE_ENUM_FIELD(operation, CmdType);
WRITE_OID_FIELD(fs_server);
WRITE_NODE_FIELD(fdw_exprs);
WRITE_NODE_FIELD(fdw_private);