Re: proposal: possibility to read dumped table's name from file - Mailing list pgsql-hackers

On Thu, Sep 8, 2022 at 7:32 PM Daniel Gustafsson <daniel@yesql.se> wrote:
> [v3]

Note that the grammar has shift-reduce conflicts. If you run a fairly
recent Bison, you can show them like this:

bison -Wno-deprecated -Wcounterexamples -d -o filterparse.c filterparse.y

filterparse.y: warning: 2 shift/reduce conflicts [-Wconflicts-sr]
filterparse.y: warning: shift/reduce conflict on token C_INCLUDE
[-Wcounterexamples]
  Example: • C_INCLUDE include_object pattern
  Shift derivation
    Filters
    ↳ 3: Filter
         ↳ 4: • C_INCLUDE include_object pattern
  Reduce derivation
    Filters
    ↳ 2: Filters  Filter
         ↳ 1: ε • ↳ 4: C_INCLUDE include_object pattern
filterparse.y: warning: shift/reduce conflict on token C_EXCLUDE
[-Wcounterexamples]
  Example: • C_EXCLUDE exclude_object pattern
  Shift derivation
    Filters
    ↳ 3: Filter
         ↳ 5: • C_EXCLUDE exclude_object pattern
  Reduce derivation
    Filters
    ↳ 2: Filters  Filter
         ↳ 1: ε • ↳ 5: C_EXCLUDE exclude_object pattern

--
John Naylor
EDB: http://www.enterprisedb.com