chore(query): add function v2 repeat

Author: sundy-li

src/query/functions-v2/tests/it/scalars/string.rs

@@ -692,6 +692,7 @@ fn test_ord(file: &mut impl Write) {
 fn test_repeat(file: &mut impl Write) {
     run_ast(file, "repeat('3', NULL)", &[]);
     run_ast(file, "repeat('3', 5)", &[]);
+    run_ast(file, "repeat('3', 1000001)", &[]);
     let table = [("a", DataType::String, Column::from_data(&["a", "b", "c"]))];
     run_ast(file, "repeat(a, 3)", &table);
 }

src/query/functions-v2/tests/it/scalars/testdata/string.txt

@@ -2741,6 +2741,14 @@ output domain  : Unknown
 output         : "33333"
 
 
+error: 
+  --> SQL:1:1
+  |
+1 | repeat('3', 1000001)
+  | ^^^^^^^^^^^^^^^^^^^^ Too many times to repeat: (1000001), maximum is: 1000000
+
+
+
 ast            : repeat(a, 3)
 raw expr       : repeat(ColumnRef(0)::String, 3_u8)
 checked expr   : repeat<String, UInt64>(ColumnRef(0), CAST(3_u8 AS UInt64))