IGNITE-17190 Minor fix regarding calcite selectivity

Author: ivandasch

modules/calcite/src/main/java/org/apache/ignite/internal/processors/query/calcite/metadata/IgniteMdSelectivity.java

@@ -324,13 +324,16 @@ private double estimateRefSelectivity(ProjectableFilterableTableScan rel, RelMet
         ColumnStatistics colStat = getColumnStatistics(mq, rel, ref);
         double res = 0.33;
 
-        if (colStat == null) {
+        if (colStat == null || colStat.max() == null || colStat.min() == null) {
             // true, false and null with equivalent probability
             return res;
         }
 
-        if (colStat.max() == null || colStat.max().compareTo(BigDecimal.ONE) != 0
-            || colStat.max().compareTo(BigDecimal.ZERO) != 0)
+        // Check whether it can be considered as BOOL.
+        boolean isBool = (colStat.max().compareTo(BigDecimal.ONE) == 0 || colStat.max().compareTo(BigDecimal.ZERO) == 0)
+            && (colStat.min().compareTo(BigDecimal.ONE) == 0 || colStat.min().compareTo(BigDecimal.ZERO) == 0);
+
+        if (!isBool)
             return res;
 
         Boolean min = colStat.min().compareTo(BigDecimal.ONE) == 0;