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fix: do not allow . and .. as table names (#4191)

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Do not allow . and .. as table names. They are incompatible with the
local filesystem, and confusing in cases where they are supported.
This commit is contained in:
Colin Patrick McCabe
2026-09-15 15:49:57 -07:00
committed by GitHub
parent 1d2a5d084b
commit ba693ae43d
1 changed files with 15 additions and 0 deletions
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rust/lancedb/src/utils/mod.rs
+15
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@@ -89,6 +89,18 @@ pub fn validate_table_name(name: &str) -> Result<()> {
reason: "Table names cannot be empty strings".to_string(),
});
}
if name == "." {
return Err(Error::InvalidTableName {
name: name.to_string(),
reason: "Table name cannot be a single dot.".to_string(),
});
}
if name == ".." {
return Err(Error::InvalidTableName {
name: name.to_string(),
reason: "Table name cannot be two dots.".to_string(),
});
}
if !TABLE_NAME_REGEX.is_match(name) {
return Err(Error::InvalidTableName {
name: name.to_string(),
@@ -804,8 +816,11 @@ mod tests {
assert!(validate_table_name("_12345table").is_ok());
assert!(validate_table_name("table.12345").is_ok());
assert!(validate_table_name("table.._dot_..12345").is_ok());
assert!(validate_table_name("...").is_ok());
assert!(validate_table_name("").is_err());
assert!(validate_table_name(".").is_err());
assert!(validate_table_name("..").is_err());
assert!(validate_table_name("my_table!").is_err());
assert!(validate_table_name("my/table").is_err());
assert!(validate_table_name("my@table").is_err());