From 86e58cf493e239522f460cdfbdbdabbdeda2345d Mon Sep 17 00:00:00 2001
From: Lev Kokotov <lev.kokotov@gmail.com>
Date: Thu, 13 Aug 2026 09:41:55 -0700
Subject: [PATCH 1/2] feat: parser version

---
 build.rs   |  2 ++
 src/lib.rs | 30 +++++++++++++++++++++++++++++-
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/build.rs b/build.rs
index 1675b26..6c52e15 100644
--- a/build.rs
+++ b/build.rs
@@ -135,6 +135,8 @@ fn main() {
         .allowlist_item("newNode")
         .allowlist_item("pg_query_normalize")
         .allowlist_item("pg_query_free_normalize_result")
+        .allowlist_var("PG_VERSION")
+        .allowlist_var("PG_VERSION_NUM")
         .wrap_static_fns(true)
         .wrap_static_fns_path(out_dir.join("wrap_static_fns"));
     for struct_name in &node_structs {
diff --git a/src/lib.rs b/src/lib.rs
index e32f2a0..7605796 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,5 @@
 #![cfg_attr(feature = "field_offset_assertions", feature(offset_of_enum))]
-use std::{fmt, ops};
+use std::{ffi::CStr, fmt, ops};
 
 pub mod const_val;
 mod deparse;
@@ -24,6 +24,17 @@ pub use crate::error::{Error, Result};
 pub use crate::node_enum::{Node, NodeMut};
 pub use crate::owned::Owned;
 
+/// PostgreSQL version number whose parser sources are used by this crate.
+pub const POSTGRES_VERSION_NUM: u32 = raw::PG_VERSION_NUM;
+
+/// Returns the PostgreSQL version whose parser sources are used by this crate.
+pub fn postgres_version() -> &'static str {
+    CStr::from_bytes_with_nul(raw::PG_VERSION)
+        .expect("bindgen generated PG_VERSION without a trailing NUL")
+        .to_str()
+        .expect("bindgen generated a non-UTF-8 PG_VERSION")
+}
+
 pub(crate) use node_ptr::{
     AsNodePtr, AsNodeRef, ConstructableNode, FromNodeMut, FromNodePtr, List,
 };
@@ -63,3 +74,20 @@ impl fmt::Debug for ParseResult {
             .finish_non_exhaustive()
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::{POSTGRES_VERSION_NUM, postgres_version};
+
+    #[test]
+    fn postgres_version_constants_are_consistent() {
+        let mut components = postgres_version()
+            .split('.')
+            .map(|component| component.parse::<u32>().unwrap());
+        let major = components.next().unwrap();
+        let minor = components.next().unwrap();
+
+        assert_eq!(POSTGRES_VERSION_NUM, major * 10_000 + minor);
+        assert!(components.next().is_none());
+    }
+}

From 10459076223befc3facdf199368730f5111be503 Mon Sep 17 00:00:00 2001
From: Lev Kokotov <lev.kokotov@gmail.com>
Date: Thu, 13 Aug 2026 12:13:50 -0700
Subject: [PATCH 2/2] its not bindgens fault

---
 src/lib.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index 7605796..0ed0cdb 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -30,9 +30,9 @@ pub const POSTGRES_VERSION_NUM: u32 = raw::PG_VERSION_NUM;
 /// Returns the PostgreSQL version whose parser sources are used by this crate.
 pub fn postgres_version() -> &'static str {
     CStr::from_bytes_with_nul(raw::PG_VERSION)
-        .expect("bindgen generated PG_VERSION without a trailing NUL")
+        .expect("generated PG_VERSION without a trailing NUL")
         .to_str()
-        .expect("bindgen generated a non-UTF-8 PG_VERSION")
+        .expect("generated a non-UTF-8 PG_VERSION")
 }
 
 pub(crate) use node_ptr::{