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Is there still a TODO here? --------------------------------------------------------------------------- Tom Lane wrote: > Log Message: > ----------- > Fix parameter recalculation for Limit nodes: during a ReScan call we must > recompute the limit/offset immediately, so that the updated values are > available when the child's ReScan function is invoked. Add a regression > test for this, too. Bug is new in HEAD (due to the bounded-sorting patch) > so no need for back-patch. > > I did not do anything about merging this signaling with chgParam processing, > but if we were to do that we'd still need to compute the updated values > at this point rather than during the first ProcNode call. > > Per observation and test case from Greg Stark, though I didn't use his patch. > > Modified Files: > -------------- > pgsql/src/backend/executor: > nodeLimit.c (r1.30 -> r1.31) > (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/nodeLimit.c.diff?r1=1.30&r2=1.31) > nodeSubplan.c (r1.88 -> r1.89) > (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/nodeSubplan.c.diff?r1=1.88&r2=1.89) > pgsql/src/include/nodes: > execnodes.h (r1.173 -> r1.174) > (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/nodes/execnodes.h.diff?r1=1.173&r2=1.174) > pgsql/src/test/regress/expected: > limit.out (r1.4 -> r1.5) > (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/limit.out.diff?r1=1.4&r2=1.5) > pgsql/src/test/regress/sql: > limit.sql (r1.4 -> r1.5) > (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/sql/limit.sql.diff?r1=1.4&r2=1.5) > > ---------------------------(end of broadcast)--------------------------- > TIP 5: don't forget to increase your free space map settings -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. +
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