dbms: fixed error [#METR-12412].

dbms/include/DB/Columns/ColumnArray.h

@@ -386,6 +386,10 @@ private:
 			throw Exception("Size of offsets doesn't match size of column.", ErrorCodes::SIZES_OF_COLUMNS_DOESNT_MATCH);
 
 		ColumnPtr res = cloneEmpty();
+
+		if (0 == col_size)
+			return res;
+
 		ColumnArray & res_ = typeid_cast<ColumnArray &>(*res);
 
 		const typename ColumnVector<T>::Container_t & cur_data = typeid_cast<const ColumnVector<T> &>(*data).getData();
@@ -430,6 +434,10 @@ private:
 			throw Exception("Size of offsets doesn't match size of column.", ErrorCodes::SIZES_OF_COLUMNS_DOESNT_MATCH);
 
 		ColumnPtr res = cloneEmpty();
+
+		if (0 == col_size)
+			return res;
+
 		ColumnArray & res_ = typeid_cast<ColumnArray &>(*res);
 
 		const ColumnString & cur_string = typeid_cast<const ColumnString &>(*data);

dbms/include/DB/Columns/ColumnConst.h

@@ -87,7 +87,8 @@ public:
 		if (s != offsets.size())
 			throw Exception("Size of offsets doesn't match size of column.", ErrorCodes::SIZES_OF_COLUMNS_DOESNT_MATCH);
 
-		return new ColumnConst<T>(offsets.back(), data, data_type);
+		size_t replicated_size = 0 == s ? 0 : offsets.back();
+		return new ColumnConst<T>(replicated_size, data, data_type);
 	}
 
 	size_t byteSize() const { return sizeof(data) + sizeof(s); }

dbms/include/DB/Columns/ColumnFixedString.h

@@ -223,6 +223,9 @@ public:
 		ColumnFixedString * res_ = new ColumnFixedString(n);
 		ColumnPtr res = res_;
 
+		if (0 == col_size)
+			return res;
+
 		Chars_t & res_chars = res_->chars;
 		res_chars.reserve(n * offsets.back());
 

dbms/include/DB/Columns/ColumnString.h

@@ -354,6 +354,9 @@ public:
 		ColumnString * res_ = new ColumnString;
 		ColumnPtr res = res_;
 
+		if (0 == col_size)
+			return res;
+
 		Chars_t & res_chars = res_->chars;
 		Offsets_t & res_offsets = res_->offsets;
 		res_chars.reserve(chars.size() / col_size * replicate_offsets.back());

dbms/include/DB/Columns/ColumnVector.h

@@ -296,6 +296,9 @@ public:
 		if (size != offsets.size())
 			throw Exception("Size of offsets doesn't match size of column.", ErrorCodes::SIZES_OF_COLUMNS_DOESNT_MATCH);
 
+		if (0 == size)
+			return new Self;
+
 		Self * res_ = new Self;
 		ColumnPtr res = res_;
 		typename Self::Container_t & res_data = res_->getData();

dbms/include/DB/Columns/IColumnDummy.h

@@ -70,7 +70,7 @@ public:
 		if (s != offsets.size())
 			throw Exception("Size of offsets doesn't match size of column.", ErrorCodes::SIZES_OF_COLUMNS_DOESNT_MATCH);
 
-		return cloneDummy(offsets.back());
+		return cloneDummy(s == 0 ? 0 : offsets.back());
 	}
 
 private:

dbms/include/DB/Functions/FunctionsCoding.h

@@ -375,7 +375,7 @@ public:
 				prev_offset = new_offset;
 			}
 
-			if (out_offsets.back() != out_vec.size())
+			if (!out_offsets.empty() && out_offsets.back() != out_vec.size())
 				throw Exception("Column size mismatch (internal logical error)", ErrorCodes::LOGICAL_ERROR);
 
 			return true;
@@ -436,7 +436,7 @@ public:
 				prev_offset = new_offset;
 			}
 
-			if (out_offsets.back() != out_vec.size())
+			if (!out_offsets.empty() && out_offsets.back() != out_vec.size())
 				throw Exception("Column size mismatch (internal logical error)", ErrorCodes::LOGICAL_ERROR);
 
 			return true;
@@ -742,7 +742,7 @@ public:
 			}
 			out_vec.resize(pos - begin);
 
-			if (out_offsets.back() != out_vec.size())
+			if (!out_offsets.empty() && out_offsets.back() != out_vec.size())
 				throw Exception("Column size mismatch (internal logical error)", ErrorCodes::LOGICAL_ERROR);
 
 			return true;
@@ -797,7 +797,7 @@ public:
 			}
 			out_vec.resize(pos - begin);
 
-			if (out_offsets.back() != out_vec.size())
+			if (!out_offsets.empty() && out_offsets.back() != out_vec.size())
 				throw Exception("Column size mismatch (internal logical error)", ErrorCodes::LOGICAL_ERROR);
 
 			return true;

dbms/tests/queries/0_stateless/00067_replicate_segfault.reference

@@ -0,0 +1,2 @@
+[]	1
+[]	1

dbms/tests/queries/0_stateless/00067_replicate_segfault.sql

@@ -0,0 +1,2 @@
+SELECT arrayFilter(x -> materialize(0), materialize([0])) AS p, arrayAll(y -> arrayExists(x -> y != x, p), p) AS test;
+SELECT arrayFilter(x -> materialize(0), materialize([''])) AS p, arrayAll(y -> arrayExists(x -> y != x, p), p) AS test;