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Commit24475a7

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Put back example of using Result node to execute an INSERT.
1 parentcdf39c7 commit24475a7

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‎src/backend/executor/nodeResult.c

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Original file line numberDiff line numberDiff line change
@@ -10,6 +10,11 @@
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*
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*select 1 * 2
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*
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*insert into emp values ('mike', 15000)
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*
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*(Remember that in an INSERT or UPDATE, we need a plan tree that
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*generates the new rows.)
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*
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*Result nodes are also used to optimise queries with constant
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*qualifications (ie, quals that do not depend on the scanned data),
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*such as:
@@ -20,7 +25,7 @@
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*
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*Result(with 2 > 1 qual)
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*/
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* SeqScan (emp.all)
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* SeqScan (emp.*)
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*
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*At runtime, the Result node evaluates the constant qual once,
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*which is shown by EXPLAIN as a One-Time Filter. If it's
@@ -33,7 +38,7 @@
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/executor/nodeResult.c,v 1.30 2005/04/2411:46:21 neilc Exp $
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* $PostgreSQL: pgsql/src/backend/executor/nodeResult.c,v 1.31 2005/04/2415:32:07 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/

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