Interval default value are now supported in Postgre (set and parsing)

src/Migrator.Tests/Providers/PostgreSQL/PostgreSQLTransformationProvider_GetColumnsDefaultValueTests.cs

@@ -32,6 +32,8 @@ public void GetColumns_DefaultValues_Succeeds()
         const string stringColumnName1 = "stringcolumn1";
         const string binaryColumnName1 = "binarycolumn1";
         const string doubleColumnName1 = "doublecolumn1";
+        const string intervalColumnName1 = "intervalcolumn1";
+        const string intervalColumnName2 = "intervalcolumn2";
 
         // Should be extended by remaining types
         Provider.AddTable(testTableName,
@@ -48,7 +50,9 @@ public void GetColumns_DefaultValues_Succeeds()
             new Column(int64ColumnName2, DbType.Int64, defaultValue: 0),
             new Column(stringColumnName1, DbType.String, defaultValue: "Hello"),
             new Column(binaryColumnName1, DbType.Binary, defaultValue: new byte[] { 12, 32, 34 }),
-            new Column(doubleColumnName1, DbType.Double, defaultValue: 84.874596565)
+            new Column(doubleColumnName1, DbType.Double, defaultValue: 84.874596565),
+            new Column(intervalColumnName1, MigratorDbType.Interval, defaultValue: new TimeSpan(100000, 3, 4, 5, 666)),
+            new Column(intervalColumnName2, MigratorDbType.Interval, defaultValue: new TimeSpan(0, 0, 0, 0, 666))
         );
 
         // Act
@@ -66,6 +70,8 @@ public void GetColumns_DefaultValues_Succeeds()
         var stringColumn1 = columns.Single(x => x.Name == stringColumnName1);
         var binarycolumn1 = columns.Single(x => x.Name == binaryColumnName1);
         var doubleColumn1 = columns.Single(x => x.Name == doubleColumnName1);
+        var intervalColumn1 = columns.Single(x => x.Name == intervalColumnName1);
+        var intervalColumn2 = columns.Single(x => x.Name == intervalColumnName2);
 
         Assert.That(dateTimeColumn1.DefaultValue, Is.EqualTo(dateTimeDefaultValue));
         Assert.That(dateTimeColumn2.DefaultValue, Is.EqualTo(dateTimeDefaultValue));
@@ -77,6 +83,8 @@ public void GetColumns_DefaultValues_Succeeds()
         Assert.That(stringColumn1.DefaultValue, Is.EqualTo("Hello"));
         Assert.That(binarycolumn1.DefaultValue, Is.EqualTo(new byte[] { 12, 32, 34 }));
         Assert.That(doubleColumn1.DefaultValue, Is.EqualTo(84.874596565));
+        Assert.That(intervalColumn1.DefaultValue, Is.EqualTo(new TimeSpan(100000, 3, 4, 5, 666)));
+        Assert.That(intervalColumn2.DefaultValue, Is.EqualTo(new TimeSpan(0, 0, 0, 0, 666)));
     }
 
     // 1 will coerce to true on inserts but not for default values in Postgre SQL - same for 0 to false
@@ -104,9 +112,6 @@ public void GetColumns_DefaultValues_Succeeds()
     public void GetColumns_DefaultValueBooleanValues_Succeeds(object inboundBooleanDefaultValue, bool outboundBooleanDefaultValue)
     {
         // Arrange
-        var dateTimeDefaultValue = new DateTime(2000, 1, 2, 3, 4, 5, DateTimeKind.Utc);
-        var guidDefaultValue = Guid.NewGuid();
-
         const string testTableName = "MyDefaultTestTable";
         const string booleanColumnName1 = "booleancolumn1";
 

src/Migrator.Tests/Providers/PostgreSQL/PostgreSQLTransformationProvider_GetColumnsTypeTests.cs

@@ -25,6 +25,7 @@ public void GetColumns_DataTypeResolveSucceeds()
         const string stringColumnName2 = "stringcolumn2";
         const string binaryColumnName1 = "binarycolumn";
         const string doubleColumnName1 = "doublecolumn";
+        const string intervalColumnName1 = "intervalcolumn";
 
         // Should be extended by remaining types
         Provider.AddTable(testTableName,
@@ -38,9 +39,11 @@ public void GetColumns_DataTypeResolveSucceeds()
             new Column(stringColumnName1, DbType.String),
             new Column(stringColumnName2, DbType.String) { Size = 30 },
             new Column(binaryColumnName1, DbType.Binary),
-            new Column(doubleColumnName1, DbType.Double)
+            new Column(doubleColumnName1, DbType.Double),
+            new Column(intervalColumnName1, MigratorDbType.Interval)
         );
 
+
         // Act
         var columns = Provider.GetColumns(testTableName);
 
@@ -55,24 +58,26 @@ public void GetColumns_DataTypeResolveSucceeds()
         var stringColumn2 = columns.Single(x => x.Name == stringColumnName2);
         var binaryColumn1 = columns.Single(x => x.Name == binaryColumnName1);
         var doubleColumn1 = columns.Single(x => x.Name == doubleColumnName1);
+        var intervalColumn1 = columns.Single(x => x.Name == intervalColumnName1);
 
 
         // Assert
-        Assert.That(dateTimeColumn1.Type, Is.EqualTo(DbType.DateTime));
+        Assert.That(dateTimeColumn1.MigratorDbType, Is.EqualTo(MigratorDbType.DateTime));
         Assert.That(dateTimeColumn1.Precision, Is.EqualTo(3));
-        Assert.That(dateTimeColumn2.Type, Is.EqualTo(DbType.DateTime2));
+        Assert.That(dateTimeColumn2.MigratorDbType, Is.EqualTo(MigratorDbType.DateTime2));
         Assert.That(dateTimeColumn2.Precision, Is.EqualTo(6));
-        Assert.That(decimalColumn1.Type, Is.EqualTo(DbType.Decimal));
+        Assert.That(decimalColumn1.MigratorDbType, Is.EqualTo(MigratorDbType.Decimal));
         Assert.That(decimalColumn1.Precision, Is.EqualTo(19));
         Assert.That(decimalColumn1.Scale, Is.EqualTo(5));
-        Assert.That(guidColumn1.Type, Is.EqualTo(DbType.Guid));
-        Assert.That(booleanColumn1.Type, Is.EqualTo(DbType.Boolean));
-        Assert.That(int32Column1.Type, Is.EqualTo(DbType.Int32));
-        Assert.That(int64column1.Type, Is.EqualTo(DbType.Int64));
-        Assert.That(stringColumn1.Type, Is.EqualTo(DbType.String));
-        Assert.That(stringColumn2.Type, Is.EqualTo(DbType.String));
+        Assert.That(guidColumn1.MigratorDbType, Is.EqualTo(MigratorDbType.Guid));
+        Assert.That(booleanColumn1.MigratorDbType, Is.EqualTo(MigratorDbType.Boolean));
+        Assert.That(int32Column1.MigratorDbType, Is.EqualTo(MigratorDbType.Int32));
+        Assert.That(int64column1.MigratorDbType, Is.EqualTo(MigratorDbType.Int64));
+        Assert.That(stringColumn1.MigratorDbType, Is.EqualTo(MigratorDbType.String));
+        Assert.That(stringColumn2.MigratorDbType, Is.EqualTo(MigratorDbType.String));
         Assert.That(stringColumn2.Size, Is.EqualTo(30));
-        Assert.That(binaryColumn1.Type, Is.EqualTo(DbType.Binary));
-        Assert.That(doubleColumn1.Type, Is.EqualTo(DbType.Double));
+        Assert.That(binaryColumn1.MigratorDbType, Is.EqualTo(MigratorDbType.Binary));
+        Assert.That(doubleColumn1.MigratorDbType, Is.EqualTo(MigratorDbType.Double));
+        Assert.That(intervalColumn1.MigratorDbType, Is.EqualTo(MigratorDbType.Interval));
     }
 }

src/Migrator/Providers/Impl/PostgreSQL/PostgreSQLDialect.cs

@@ -1,4 +1,5 @@
 using DotNetProjects.Migrator.Framework;
+using System;
 using System.Data;
 
 namespace DotNetProjects.Migrator.Providers.Impl.PostgreSQL;
@@ -112,6 +113,18 @@ public override ITransformationProvider GetTransformationProvider(Dialect dialec
         return new PostgreSQLTransformationProvider(dialect, connection, defaultSchema, scope, providerName);
     }
 
+    public override string Default(object defaultValue)
+    {
+        if (defaultValue is TimeSpan timeSpan)
+        {
+            var intervalPostgreNotation = $"{(int)timeSpan.TotalHours:D2}:{timeSpan.Minutes:D2}:{timeSpan.Seconds:D2}.{timeSpan.Milliseconds:D3}";
+
+            return $"DEFAULT '{intervalPostgreNotation}'";
+        }
+
+        return base.Default(defaultValue);
+    }
+
     //public override string SqlForProperty(ColumnProperty property, Column column)
     //{
     //	if (property == ColumnProperty.Identity && (column.Type == DbType.Int64 || column.Type == DbType.UInt32 || column.Type == DbType.UInt64))