Merging upstream version 18.4.1.

Signed-off-by: Daniel Baumann <daniel@debian.org>

sqlglot/expressions.py

@@ -20,6 +20,7 @@ import typing as t
 from collections import deque
 from copy import deepcopy
 from enum import auto
+from functools import reduce
 
 from sqlglot._typing import E
 from sqlglot.errors import ParseError
@@ -1170,7 +1171,7 @@ class Column(Condition):
                 parts.append(parent.expression)
             parent = parent.parent
 
-        return Dot.build(parts)
+        return Dot.build(deepcopy(parts))
 
 
 class ColumnPosition(Expression):
@@ -1537,6 +1538,10 @@ class ForeignKey(Expression):
     }
 
 
+class ColumnPrefix(Expression):
+    arg_types = {"this": True, "expression": True}
+
+
 class PrimaryKey(Expression):
     arg_types = {"expressions": True, "options": False}
 
@@ -3529,6 +3534,8 @@ class DataType(Expression):
         STRUCT = auto()
         SUPER = auto()
         TEXT = auto()
+        TINYBLOB = auto()
+        TINYTEXT = auto()
         TIME = auto()
         TIMETZ = auto()
         TIMESTAMP = auto()
@@ -3793,13 +3800,7 @@ class Dot(Binary):
         if len(expressions) < 2:
             raise ValueError(f"Dot requires >= 2 expressions.")
 
-        a, b, *expressions = expressions
-        dot = Dot(this=a, expression=b)
-
-        for expression in expressions:
-            dot = Dot(this=dot, expression=expression)
-
-        return dot
+        return t.cast(Dot, reduce(lambda x, y: Dot(this=x, expression=y), expressions))
 
 
 class DPipe(Binary):
@@ -3959,6 +3960,13 @@ class Between(Predicate):
 class Bracket(Condition):
     arg_types = {"this": True, "expressions": True}
 
+    @property
+    def output_name(self) -> str:
+        if len(self.expressions) == 1:
+            return self.expressions[0].output_name
+
+        return super().output_name
+
 
 class SafeBracket(Bracket):
     """Represents array lookup where OOB index yields NULL instead of causing a failure."""
@@ -4477,6 +4485,10 @@ class IsNan(Func):
     _sql_names = ["IS_NAN", "ISNAN"]
 
 
+class FormatJson(Expression):
+    pass
+
+
 class JSONKeyValue(Expression):
     arg_types = {"this": True, "expression": True}
 
@@ -4487,11 +4499,48 @@ class JSONObject(Func):
         "null_handling": False,
         "unique_keys": False,
         "return_type": False,
-        "format_json": False,
         "encoding": False,
     }
 
 
+# https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/JSON_ARRAY.html
+class JSONArray(Func):
+    arg_types = {
+        "expressions": True,
+        "null_handling": False,
+        "return_type": False,
+        "strict": False,
+    }
+
+
+# https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/JSON_ARRAYAGG.html
+class JSONArrayAgg(Func):
+    arg_types = {
+        "this": True,
+        "order": False,
+        "null_handling": False,
+        "return_type": False,
+        "strict": False,
+    }
+
+
+# https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/JSON_TABLE.html
+# Note: parsing of JSON column definitions is currently incomplete.
+class JSONColumnDef(Expression):
+    arg_types = {"this": True, "kind": False, "path": False}
+
+
+# # https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/JSON_TABLE.html
+class JSONTable(Func):
+    arg_types = {
+        "this": True,
+        "expressions": True,
+        "path": False,
+        "error_handling": False,
+        "empty_handling": False,
+    }
+
+
 class OpenJSONColumnDef(Expression):
     arg_types = {"this": True, "kind": True, "path": False, "as_json": False}