add system and nullable properties for all tokens, add nullValue for painless scripts, add input expr to all sql functions set by applying applyTo, add sql interval function to update out sql type, update painless script computation, implements coalesce and nullif logical functions, add fixes for parser, update sql types and validations

Author: fupelaqu

es6/sql-bridge/src/test/scala/app/softnetwork/elastic/sql/SQLQuerySpec.scala

@@ -12,7 +12,9 @@ import app.softnetwork.elastic.sql.{
   SQLExpression,
   SQLIn,
   SQLIsNotNull,
-  SQLIsNull
+  SQLIsNotNullCriteria,
+  SQLIsNull,
+  SQLIsNullCriteria
 }
 import com.sksamuel.elastic4s.ElasticApi._
 import com.sksamuel.elastic4s.requests.searches.queries.Query
@@ -69,6 +71,8 @@ case class ElasticQuery(filter: ElasticFilter) {
       case between: SQLBetween[Double]     => between
       case geoDistance: ElasticGeoDistance => geoDistance
       case matchExpression: ElasticMatch   => matchExpression
+      case isNull: SQLIsNullCriteria       => isNull
+      case isNotNull: SQLIsNotNullCriteria => isNotNull
       case other =>
         throw new IllegalArgumentException(s"Unsupported filter type: ${other.getClass.getName}")
     }

sql/bridge/src/main/scala/app/softnetwork/elastic/sql/bridge/ElasticQuery.scala

@@ -341,6 +341,20 @@ package object bridge {
     existsQuery(identifier.name)
   }
 
+  implicit def isNullCriteriaToQuery(
+    isNull: SQLIsNullCriteria
+  ): Query = {
+    import isNull._
+    not(existsQuery(identifier.name))
+  }
+
+  implicit def isNotNullCriteriaToQuery(
+    isNotNull: SQLIsNotNullCriteria
+  ): Query = {
+    import isNotNull._
+    existsQuery(identifier.name)
+  }
+
   implicit def inToQuery[R, T <: SQLValue[R]](in: SQLIn[R, T]): Query = {
     import in._
     val _values: Seq[Any] = values.innerValues