switch _INF _NAN

Author: chelsea-lin

bigframes/core/compile/sqlglot/expressions/unary_compiler.py

@@ -49,7 +49,7 @@ def _(op: ops.base_ops.UnaryOp, expr: TypedExpr) -> sge.Expression:
         ifs=[
             sge.If(
                 this=expr.expr < sge.convert(1),
-                true=sge.func("IEEE_DIVIDE", sge.convert(0), sge.convert(0)),
+                true=_NAN,
             )
         ],
         default=sge.func("ACOSH", expr.expr),
@@ -98,7 +98,7 @@ def _(op: ops.base_ops.UnaryOp, expr: TypedExpr) -> sge.Expression:
         ifs=[
             sge.If(
                 this=sge.func("ABS", expr.expr) > sge.convert(1),
-                true=sge.func("IEEE_DIVIDE", sge.convert(0), sge.convert(0)),
+                true=_NAN,
             )
         ],
         default=sge.func("ATANH", expr.expr),
@@ -168,7 +168,7 @@ def _(op: ops.base_ops.UnaryOp, expr: TypedExpr) -> sge.Expression:
         ifs=[
             sge.If(
                 this=sge.func("ABS", expr.expr) > sge.convert(709.78),
-                true=sge.func("IEEE_DIVIDE", sge.convert(1), sge.convert(0)),
+                true=_INF,
             )
         ],
         default=sge.func("COSH", expr.expr),

tests/unit/core/compile/sqlglot/expressions/snapshots/test_unary_compiler/test_arccosh/out.sql

@@ -5,7 +5,7 @@ WITH `bfcte_0` AS (
 ), `bfcte_1` AS (
   SELECT
     *,
-    CASE WHEN `bfcol_0` < 1 THEN IEEE_DIVIDE(0, 0) ELSE ACOSH(`bfcol_0`) END AS `bfcol_1`
+    CASE WHEN `bfcol_0` < 1 THEN CAST('NaN' AS FLOAT64) ELSE ACOSH(`bfcol_0`) END AS `bfcol_1`
   FROM `bfcte_0`
 )
 SELECT

tests/unit/core/compile/sqlglot/expressions/snapshots/test_unary_compiler/test_arctanh/out.sql

@@ -5,7 +5,7 @@ WITH `bfcte_0` AS (
 ), `bfcte_1` AS (
   SELECT
     *,
-    CASE WHEN ABS(`bfcol_0`) > 1 THEN IEEE_DIVIDE(0, 0) ELSE ATANH(`bfcol_0`) END AS `bfcol_1`
+    CASE WHEN ABS(`bfcol_0`) > 1 THEN CAST('NaN' AS FLOAT64) ELSE ATANH(`bfcol_0`) END AS `bfcol_1`
   FROM `bfcte_0`
 )
 SELECT

tests/unit/core/compile/sqlglot/expressions/snapshots/test_unary_compiler/test_cosh/out.sql

@@ -5,7 +5,11 @@ WITH `bfcte_0` AS (
 ), `bfcte_1` AS (
   SELECT
     *,
-    CASE WHEN ABS(`bfcol_0`) > 709.78 THEN IEEE_DIVIDE(1, 0) ELSE COSH(`bfcol_0`) END AS `bfcol_1`
+    CASE
+      WHEN ABS(`bfcol_0`) > 709.78
+      THEN CAST('Infinity' AS FLOAT64)
+      ELSE COSH(`bfcol_0`)
+    END AS `bfcol_1`
   FROM `bfcte_0`
 )
 SELECT