Merge pull request #9791 from nbc/bugfix/9768

Bugfix/9768
duckdb · Nov 24, 2023 · 72034bc · 72034bc
2 parents 858de5e + e8f51ce
commit 72034bc
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diff --git a/data/parquet-testing/hive-partitioning/empty_string/key=/part-0.parquet b/data/parquet-testing/hive-partitioning/empty_string/key=/part-0.parquet
diff --git a/data/parquet-testing/hive-partitioning/empty_string/key=a/part-0.parquet b/data/parquet-testing/hive-partitioning/empty_string/key=a/part-0.parquet
diff --git a/src/common/hive_partitioning.cpp b/src/common/hive_partitioning.cpp
@@ -65,7 +65,7 @@ static void ConvertKnownColRefToConstants(unique_ptr<Expression> &expr,
 //  - http(s)://domain(:port)/lala/kasdl/var1=value1/?not-a-var=not-a-value
 //  - folder/folder/folder/../var1=value1/etc/.//var2=value2
 const string &HivePartitioning::RegexString() {
-	static string REGEX = "[\\/\\\\]([^\\/\\?\\\\]+)=([^\\/\\n\\?\\\\]+)";
+	static string REGEX = "[\\/\\\\]([^\\/\\?\\\\]+)=([^\\/\\n\\?\\\\]*)";
 	return REGEX;
 }
 

diff --git a/test/sql/copy/parquet/parquet_hive_empty.test b/test/sql/copy/parquet/parquet_hive_empty.test
@@ -0,0 +1,14 @@
+# name: test/sql/copy/parquet/parquet_hive_empty.test
+# description: Test empty partitioning values
+# group: [parquet]
+
+require parquet
+
+query II
+select * 
+from parquet_scan('data/parquet-testing/hive-partitioning/empty_string/*/*.parquet', hive_partitioning=1)
+ORDER BY ALL
+----
+a	a
+b	(empty)
+