| From: | John Naylor <john(dot)naylor(at)enterprisedb(dot)com> |
|---|---|
| To: | Daniel Gustafsson <daniel(at)yesql(dot)se> |
| Cc: | Julien Rouhaud <rjuju123(at)gmail(dot)com>, Erik Rijkers <er(at)xs4all(dot)nl>, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Justin Pryzby <pryzby(at)telsasoft(dot)com>, Andrew Dunstan <andrew(at)dunslane(dot)net>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>, Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, Surafel Temesgen <surafel3000(at)gmail(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: proposal: possibility to read dumped table's name from file |
| Date: | 2022-09-09 07:53:31 |
| Message-ID: | CAFBsxsFELC2NWVhht_f3ut5xt1m+bg21d=J-g=d-ysXObnofBA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, Sep 8, 2022 at 7:32 PM Daniel Gustafsson <daniel(at)yesql(dot)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
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