rename as AddCheckConstraint

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala

@@ -1191,7 +1191,7 @@ trait CheckAnalysis extends LookupCatalog with QueryErrorsBase with PlanToString
           case _ =>
         }
 
-      case addConstraint @ AddConstraint(table: ResolvedTable, _, constraintExpr) =>
+      case addConstraint @ AddCheckConstraint(table: ResolvedTable, _, constraintExpr) =>
         if (!constraintExpr.resolved) {
           constraintExpr.failAnalysis(
             errorClass = "INVALID_CHECK_CONSTRAINT.UNRESOLVED",

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala

@@ -5250,7 +5250,7 @@ class AstBuilder extends DataTypeAstBuilder
   }
 
   /**
-   * Parse a [[AddConstraint]] command.
+   * Parse a [[AddCheckConstraint]] command.
    *
    * For example:
    * {{{
@@ -5262,7 +5262,7 @@ class AstBuilder extends DataTypeAstBuilder
       val table = createUnresolvedTable(
         ctx.identifierReference, "ALTER TABLE ... ADD CONSTRAINT")
       val constraintExpression = visitConstraintSpec(ctx.constraintSpec())
-      AddConstraint(table, ctx.constraintSpec().constraintName.getText, constraintExpression)
+      AddCheckConstraint(table, ctx.constraintSpec().constraintName.getText, constraintExpression)
     }
 
 

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/v2AlterTableCommands.scala

@@ -292,7 +292,7 @@ case class AlterTableCollation(
 /**
  * The logical plan of the ALTER TABLE ... ADD CONSTRAINT command.
  */
-case class AddConstraint(
+case class AddCheckConstraint(
     table: LogicalPlan,
     name: String,
     constraintExpr: Expression) extends AlterTableCommand {

sql/core/src/test/scala/org/apache/spark/sql/execution/command/AlterTableAddConstraintParseSuite.scala

@@ -20,7 +20,7 @@ import org.apache.spark.sql.catalyst.analysis.{AnalysisTest, UnresolvedAttribute
 import org.apache.spark.sql.catalyst.expressions.{GreaterThan, Literal}
 import org.apache.spark.sql.catalyst.parser.CatalystSqlParser.parsePlan
 import org.apache.spark.sql.catalyst.parser.ParseException
-import org.apache.spark.sql.catalyst.plans.logical.AddConstraint
+import org.apache.spark.sql.catalyst.plans.logical.AddCheckConstraint
 import org.apache.spark.sql.test.SharedSparkSession
 
 class AlterTableAddConstraintParseSuite extends AnalysisTest with SharedSparkSession {
@@ -31,7 +31,7 @@ class AlterTableAddConstraintParseSuite extends AnalysisTest with SharedSparkSes
         |ALTER TABLE a.b.c ADD CONSTRAINT c1 CHECK (d > 0)
         |""".stripMargin
     val parsed = parsePlan(sql)
-    val expected = AddConstraint(
+    val expected = AddCheckConstraint(
       UnresolvedTable(
         Seq("a", "b", "c"),
         "ALTER TABLE ... ADD CONSTRAINT"),