Refactor pull_var_clause's API to make it less tedious to extend. In commit 1d97c19a0f748e94 and later c1d9579dd8bf3c92, we extended pull_var_clause's API by adding enum-type arguments. That's sort of a pain to maintain, though, because it means every time we add a new behavior we must touch every last one of the call sites, even if there's a reasonable default behavior that most of them could use. Let's switch over to using a bitmask of flags, instead; that seems more maintainable and might save a nanosecond or two as well. This commit changes no behavior in itself, though I'm going to follow it up with one that does add a new behavior.
In passing, remove flatten_tlist(), which has not been used since 9.1 and would otherwise need the same API changes. Removing these enums means that optimizer/tlist.h no longer needs to depend on optimizer/var.h. Changing that caused a number of C files to need addition of #include "optimizer/var.h" (probably we can thank old runs of pgrminclude for that); but on balance it seems like a good change anyway. Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/364a9f47ab363250f62dd2c381c4da435283725a Modified Files -------------- contrib/postgres_fdw/deparse.c | 1 - src/backend/catalog/heap.c | 8 +-- src/backend/commands/trigger.c | 4 +- src/backend/optimizer/path/allpaths.c | 4 +- src/backend/optimizer/path/equivclass.c | 2 +- src/backend/optimizer/plan/analyzejoins.c | 1 + src/backend/optimizer/plan/createplan.c | 2 +- src/backend/optimizer/plan/initsplan.c | 6 +- src/backend/optimizer/plan/planner.c | 5 +- src/backend/optimizer/plan/setrefs.c | 15 +++-- src/backend/optimizer/prep/prepjointree.c | 1 + src/backend/optimizer/prep/preptlist.c | 3 +- src/backend/optimizer/util/placeholder.c | 4 +- src/backend/optimizer/util/tlist.c | 28 -------- src/backend/optimizer/util/var.c | 108 ++++++++++++++++-------------- src/backend/parser/parse_agg.c | 1 + src/backend/parser/parse_clause.c | 1 + src/backend/utils/adt/selfuncs.c | 2 +- src/include/optimizer/tlist.h | 4 +- src/include/optimizer/var.h | 22 +++--- 20 files changed, 94 insertions(+), 128 deletions(-) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers