fix: allow case-insensitive timezone settings (#7207)

Cargo.lock

@@ -1630,6 +1630,7 @@ dependencies = [
  "chrono",
  "chrono-tz-build",
  "phf 0.11.3",
+ "uncased",
 ]
 
 [[package]]
@@ -1640,6 +1641,8 @@ checksum = "8f10f8c9340e31fc120ff885fcdb54a0b48e474bbd77cab557f0c30a3e569402"
 dependencies = [
  "parse-zoneinfo",
  "phf_codegen 0.11.3",
+ "phf_shared 0.11.3",
+ "uncased",
 ]
 
 [[package]]
@@ -9273,6 +9276,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "67eabc2ef2a60eb7faa00097bd1ffdb5bd28e62bf39990626a582201b7a754e5"
 dependencies = [
  "siphasher",
+ "uncased",
 ]
 
 [[package]]
@@ -13972,6 +13976,15 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "uncased"
+version = "0.9.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e1b88fcfe09e89d3866a5c11019378088af2d24c3fbd4f0543f96b479ec90697"
+dependencies = [
+ "version_check",
+]
+
 [[package]]
 name = "unescaper"
 version = "0.1.6"

Cargo.toml

@@ -118,7 +118,7 @@ bitflags = "2.4.1"
 bytemuck = "1.12"
 bytes = { version = "1.7", features = ["serde"] }
 chrono = { version = "0.4", features = ["serde"] }
-chrono-tz = "0.10.1"
+chrono-tz = { version = "0.10.1", features = ["case-insensitive"] }
 clap = { version = "4.4", features = ["derive"] }
 config = "0.13.0"
 const_format = "0.2"

src/common/time/src/timezone.rs

@@ -13,7 +13,6 @@
 // limitations under the License.
 
 use std::fmt::Display;
-use std::str::FromStr;
 
 use chrono::{FixedOffset, TimeZone};
 use chrono_tz::{OffsetComponents, Tz};
@@ -102,7 +101,7 @@ impl Timezone {
                 .parse::<u32>()
                 .context(ParseOffsetStrSnafu { raw: tz_string })?;
             Self::hours_mins_opt(hrs, mins)
-        } else if let Ok(tz) = Tz::from_str(tz_string) {
+        } else if let Ok(tz) = Tz::from_str_insensitive(tz_string) {
             Ok(Self::Named(tz))
         } else {
             ParseTimezoneNameSnafu { raw: tz_string }.fail()
@@ -203,6 +202,10 @@ mod tests {
             Timezone::Named(Tz::Asia__Shanghai),
             Timezone::from_tz_string("Asia/Shanghai").unwrap()
         );
+        assert_eq!(
+            Timezone::Named(Tz::Asia__Shanghai),
+            Timezone::from_tz_string("Asia/ShangHai").unwrap()
+        );
         assert_eq!(
             Timezone::Named(Tz::UTC),
             Timezone::from_tz_string("UTC").unwrap()