feat(timestamps): add support for timestamp/date +/- intervals for additional backends

ibis/backends/sql/compilers/base.py

@@ -942,9 +942,7 @@ def visit_DayOfWeekName(self, op, *, arg):
         )
 
     def visit_IntervalFromInteger(self, op, *, arg, unit):
-        return sge.Interval(
-            this=sge.convert(arg), unit=sge.Var(this=unit.singular.upper())
-        )
+        return sge.Interval(this=arg, unit=self.v[unit.singular.upper()])
 
     ### String Instruments
     def visit_Strip(self, op, *, arg):

ibis/backends/sql/compilers/mssql.py

@@ -86,14 +86,12 @@ class MSSQLCompiler(SQLGlotCompiler):
         ops.BitXor,
         ops.Covariance,
         ops.CountDistinctStar,
-        ops.DateAdd,
         ops.DateDiff,
-        ops.DateSub,
         ops.EndsWith,
         ops.IntervalAdd,
-        ops.IntervalFromInteger,
-        ops.IntervalMultiply,
         ops.IntervalSubtract,
+        ops.IntervalMultiply,
+        ops.IntervalFloorDivide,
         ops.IsInf,
         ops.IsNan,
         ops.LPad,
@@ -115,9 +113,7 @@ class MSSQLCompiler(SQLGlotCompiler):
         ops.StringToDate,
         ops.StringToTimestamp,
         ops.StructColumn,
-        ops.TimestampAdd,
         ops.TimestampDiff,
-        ops.TimestampSub,
         ops.Unnest,
     )
 
@@ -404,6 +400,8 @@ def visit_Cast(self, op, *, arg, to):
             return arg
         elif from_.is_integer() and to.is_timestamp():
             return self.f.dateadd(self.v.s, arg, "1970-01-01 00:00:00")
+        elif from_.is_integer() and to.is_interval():
+            return sge.Interval(this=arg, unit=self.v[to.unit.singular])
         return super().visit_Cast(op, arg=arg, to=to)
 
     def visit_Sum(self, op, *, arg, where):
@@ -500,5 +498,18 @@ def visit_Select(self, op, *, parent, selections, predicates, qualified, sort_ke
 
         return result
 
+    def visit_TimestampAdd(self, op, *, left, right):
+        return self.f.dateadd(
+            right.unit, self.cast(right.this, dt.int64), left, dialect=self.dialect
+        )
+
+    def visit_TimestampSub(self, op, *, left, right):
+        return self.f.dateadd(
+            right.unit, -self.cast(right.this, dt.int64), left, dialect=self.dialect
+        )
+
+    visit_DateAdd = visit_TimestampAdd
+    visit_DateSub = visit_TimestampSub
+
 
 compiler = MSSQLCompiler()

ibis/backends/sql/compilers/mysql.py

@@ -120,22 +120,16 @@ def visit_Cast(self, op, *, arg, to):
             # for TEXT (except when casting of course!)
             return arg
         elif from_.is_integer() and to.is_interval():
-            return self.visit_IntervalFromInteger(
-                ops.IntervalFromInteger(op.arg, unit=to.unit), arg=arg, unit=to.unit
-            )
+            return sge.Interval(this=arg, unit=self.v[to.unit.singular.upper()])
         elif from_.is_integer() and to.is_timestamp():
             return self.f.from_unixtime(arg)
         return super().visit_Cast(op, arg=arg, to=to)
 
     def visit_TimestampDiff(self, op, *, left, right):
-        return self.f.timestampdiff(
-            sge.Var(this="SECOND"), right, left, dialect=self.dialect
-        )
+        return self.f.timestampdiff(self.v.SECOND, right, left, dialect=self.dialect)
 
     def visit_DateDiff(self, op, *, left, right):
-        return self.f.timestampdiff(
-            sge.Var(this="DAY"), right, left, dialect=self.dialect
-        )
+        return self.f.timestampdiff(self.v.DAY, right, left, dialect=self.dialect)
 
     def visit_ApproxCountDistinct(self, op, *, arg, where):
         if where is not None:
@@ -317,16 +311,16 @@ def visit_DateTimestampTruncate(self, op, *, arg, unit):
 
     def visit_DateTimeDelta(self, op, *, left, right, part):
         return self.f.timestampdiff(
-            sge.Var(this=part.this), right, left, dialect=self.dialect
+            self.v[part.this], right, left, dialect=self.dialect
         )
 
     visit_TimeDelta = visit_DateDelta = visit_DateTimeDelta
 
     def visit_ExtractMillisecond(self, op, *, arg):
-        return self.f.floor(self.f.extract(sge.Var(this="microsecond"), arg) / 1_000)
+        return self.f.floor(self.f.extract(self.v.microsecond, arg) / 1_000)
 
     def visit_ExtractMicrosecond(self, op, *, arg):
-        return self.f.floor(self.f.extract(sge.Var(this="microsecond"), arg))
+        return self.f.floor(self.f.extract(self.v.microsecond, arg))
 
     def visit_Strip(self, op, *, arg):
         return self.visit_LRStrip(op, arg=arg, position="BOTH")
@@ -337,14 +331,9 @@ def visit_LStrip(self, op, *, arg):
     def visit_RStrip(self, op, *, arg):
         return self.visit_LRStrip(op, arg=arg, position="TRAILING")
 
-    def visit_IntervalFromInteger(self, op, *, arg, unit):
-        return sge.Interval(this=arg, unit=sge.Var(this=op.resolution.upper()))
-
     def visit_TimestampAdd(self, op, *, left, right):
         if op.right.dtype.unit.short == "ms":
-            right = sge.Interval(
-                this=right.this * 1_000, unit=sge.Var(this="MICROSECOND")
-            )
+            right = sge.Interval(this=right.this * 1_000, unit=self.v.MICROSECOND)
         return self.f.date_add(left, right, dialect=self.dialect)
 
     def visit_UnwrapJSONString(self, op, *, arg):

ibis/backends/sql/compilers/oracle.py

@@ -67,7 +67,6 @@
         ops.TimestampDelta,
         ops.TimestampFromYMDHMS,
         ops.TimeFromHMS,
-        ops.IntervalFromInteger,
         ops.DayOfWeekIndex,
         ops.DayOfWeekName,
         ops.DateDiff,
@@ -138,30 +137,37 @@
         elif dtype.is_uuid():
             return sge.convert(str(value))
         elif dtype.is_interval():
-            if dtype.unit.short in ("Y", "M"):
-                return self.f.numtoyminterval(value, dtype.unit.name)
-            elif dtype.unit.short in ("D", "h", "m", "s"):
-                return self.f.numtodsinterval(value, dtype.unit.name)
-            else:
-                raise com.UnsupportedOperationError(
-                    f"Intervals with precision {dtype.unit.name} not supported in Oracle."
-                )
+            return self._value_to_interval(value, dtype.unit)
 
         return super().visit_Literal(op, value=value, dtype=dtype)
 
+    def _value_to_interval(self, arg, unit):
+        short = unit.short
+
+        if short in ("Y", "M"):
+            return self.f.numtoyminterval(arg, unit.singular)
+        elif short in ("D", "h", "m", "s"):
+            return self.f.numtodsinterval(arg, unit.singular)
+        elif short == "ms":
+            return self.f.numtodsinterval(arg / 1e3, "second")
+        elif short in "us":
+            return self.f.numtodsinterval(arg / 1e6, "second")
+        elif short in "ns":
+            return self.f.numtodsinterval(arg / 1e9, "second")
+        else:
+            raise com.UnsupportedArgumentError(
+                f"Interval {unit.name} not supported by Oracle"
+            )
+
     def visit_Cast(self, op, *, arg, to):
-        if to.is_interval():
+        from_ = op.arg.dtype
+        if from_.is_numeric() and to.is_interval():
             # CASTing to an INTERVAL in Oracle requires specifying digits of
             # precision that are a pain.  There are two helper functions that
             # should be used instead.
-            if to.unit.short in ("D", "h", "m", "s"):
-                return self.f.numtodsinterval(arg, to.unit.name)
-            elif to.unit.short in ("Y", "M"):
-                return self.f.numtoyminterval(arg, to.unit.name)
-            else:
-                raise com.UnsupportedArgumentError(
-                    f"Interval {to.unit.name} not supported by Oracle"
-                )
+            return self._value_to_interval(arg, to.unit)
+        elif from_.is_string() and to.is_date():
+            return self.f.to_date(arg, "FXYYYY-MM-DD")
         return self.cast(arg, to)
 
     def visit_Limit(self, op, *, parent, n, offset):
@@ -457,5 +463,8 @@
 
         return out
 
+    def visit_IntervalFromInteger(self, op, *, arg, unit):
+        return self._value_to_interval(arg, unit)
+
 
 compiler = OracleCompiler()

ibis/backends/sql/compilers/snowflake.py

@@ -378,9 +378,6 @@ def visit_TimestampSub(self, op, *, left, right):
     visit_DateAdd = visit_TimestampAdd
     visit_DateSub = visit_TimestampSub
 
-    def visit_IntervalFromInteger(self, op, *, arg, unit):
-        return sge.Interval(this=arg, unit=self.v[unit.name])
-
     def visit_IntegerRange(self, op, *, start, stop, step):
         return self.if_(
             step.neq(0), self.f.array_generate_range(start, stop, step), self.f.array()

ibis/backends/tests/errors.py

@@ -133,8 +133,9 @@
 
 try:
     from oracledb.exceptions import DatabaseError as OracleDatabaseError
+    from oracledb.exceptions import InterfaceError as OracleInterfaceError
 except ImportError:
-    OracleDatabaseError = None
+    OracleDatabaseError = OracleInterfaceError = None
 
 try:
     from pyodbc import DataError as PyODBCDataError

ibis/backends/tests/test_param.py

@@ -157,7 +157,7 @@ def test_scalar_param(backend, alltypes, df, value, dtype, col):
     ["2009-01-20", datetime.date(2009, 1, 20), datetime.datetime(2009, 1, 20)],
     ids=["string", "date", "datetime"],
 )
-@pytest.mark.notimpl(["druid", "oracle"])
+@pytest.mark.notimpl(["druid"])
 def test_scalar_param_date(backend, alltypes, value):
     param = ibis.param("date")
     ds_col = alltypes.date_string_col