Refactor ChangeVarNodesExtended() using the custom callback fc069a3a6319 implemented Self-Join Elimination (SJE) and put related logic to ChangeVarNodes_walker(). This commit provides refactoring to remove the SJE-related logic from ChangeVarNodes_walker() but adds a custom callback to ChangeVarNodesExtended(), which has a chance to process a node before ChangeVarNodes_walker(). Passing this callback to ChangeVarNodesExtended() allows SJE-related node handling to be kept within the analyzejoins.c.
Reported-by: Richard Guo <guofengli...@gmail.com> Discussion: https://postgr.es/m/CAMbWs49PE3CvnV8vrQ0Dr%3DHqgZZmX0tdNbzVNJxqc8yg-8kDQQ%40mail.gmail.com Author: Andrei Lepikhov <lepi...@gmail.com> Author: Alexander Korotkov <aekorot...@gmail.com> Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/ab42d643c14509cf1345588f55d798284b11a91e Modified Files -------------- src/backend/optimizer/plan/analyzejoins.c | 160 +++++++++++++++++++++++++++--- src/backend/rewrite/rewriteManip.c | 138 ++++++-------------------- src/include/rewrite/rewriteManip.h | 17 +++- src/tools/pgindent/typedefs.list | 1 + 4 files changed, 192 insertions(+), 124 deletions(-)
