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authorTom Lane2022-10-16 19:27:04 +0000
committerTom Lane2022-10-16 19:27:04 +0000
commit02d074e3ebca1ac0ccdc28a5ecf83ecf117d35b9 (patch)
tree1376987690814018763d50881d5b88d3fb134a3e /src
parente06ae1eb36d0fb01aa93d8c8c4143451913631ed (diff)
Rename parser token REF to REF_P to avoid a symbol conflict.
In the latest version of Apple's macOS SDK, <sys/socket.h> fails to compile if "REF" is #define'd as something. Apple may or may not agree that this is a bug, and even if they do accept the bug report I filed, they probably won't fix it very quickly. In the meantime, our back branches will all fail to compile gram.y. v15 and HEAD currently escape the problem thanks to the refactoring done in 98e93a1fc, but that's purely accidental. Moreover, since that patch removed a widely-visible inclusion of <netdb.h>, back-patching it seems too likely to break third-party code. Instead, change the token's code name to REF_P, following our usual convention for naming parser tokens that are likely to have symbol conflicts. The effects of that should be localized to the grammar and immediately surrounding files, so it seems like a safer answer. Per project policy that we want to keep recently-out-of-support branches buildable on modern systems, back-patch all the way to 9.2. Discussion: https://postgr.es/m/1803927.1665938411@sss.pgh.pa.us
Diffstat (limited to 'src')
-rw-r--r--src/backend/parser/gram.y10
-rw-r--r--src/include/parser/kwlist.h2
2 files changed, 6 insertions, 6 deletions
diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index 9478602be89..bfdc2993983 100644
--- a/src/backend/parser/gram.y
+++ b/src/backend/parser/gram.y
@@ -661,7 +661,7 @@ static Node *makeRecursiveViewSelect(char *relname, List *aliases, Node *query);
QUOTE
- RANGE READ REAL REASSIGN RECHECK RECURSIVE REF REFERENCES REFERENCING
+ RANGE READ REAL REASSIGN RECHECK RECURSIVE REF_P REFERENCES REFERENCING
REFRESH REINDEX RELATIVE_P RELEASE RENAME REPEATABLE REPLACE REPLICA
RESET RESTART RESTRICT RETURNING RETURNS REVOKE RIGHT ROLE ROLLBACK ROLLUP
ROW ROWS RULE
@@ -13605,15 +13605,15 @@ xmlexists_argument:
{
$$ = $2;
}
- | PASSING c_expr BY REF
+ | PASSING c_expr BY REF_P
{
$$ = $2;
}
- | PASSING BY REF c_expr
+ | PASSING BY REF_P c_expr
{
$$ = $4;
}
- | PASSING BY REF c_expr BY REF
+ | PASSING BY REF_P c_expr BY REF_P
{
$$ = $4;
}
@@ -14810,7 +14810,7 @@ unreserved_keyword:
| REASSIGN
| RECHECK
| RECURSIVE
- | REF
+ | REF_P
| REFERENCING
| REFRESH
| REINDEX
diff --git a/src/include/parser/kwlist.h b/src/include/parser/kwlist.h
index f50e45e886d..e64dcf0055a 100644
--- a/src/include/parser/kwlist.h
+++ b/src/include/parser/kwlist.h
@@ -319,7 +319,7 @@ PG_KEYWORD("real", REAL, COL_NAME_KEYWORD)
PG_KEYWORD("reassign", REASSIGN, UNRESERVED_KEYWORD)
PG_KEYWORD("recheck", RECHECK, UNRESERVED_KEYWORD)
PG_KEYWORD("recursive", RECURSIVE, UNRESERVED_KEYWORD)
-PG_KEYWORD("ref", REF, UNRESERVED_KEYWORD)
+PG_KEYWORD("ref", REF_P, UNRESERVED_KEYWORD)
PG_KEYWORD("references", REFERENCES, RESERVED_KEYWORD)
PG_KEYWORD("referencing", REFERENCING, UNRESERVED_KEYWORD)
PG_KEYWORD("refresh", REFRESH, UNRESERVED_KEYWORD)